Abrégé

The invention discloses a micro-interface strengthening reaction system for preparing poly-α-olefin, which includes: a first polymerization reactor and a second polymerization reactor that are connected with each other in sequence, wherein a first micro-interface generator is disposed outside the first polymerization reactor, and a second micro-interface generator is disposed inside the second polymerization reactor. A bottom of the second polymerization reactor is provided with a discharge port, and the discharge port is connected with a hydrogen halide removal tower. By disposing the first micro-interface generator in the first polymerization reactor while disposing the second micro-interface generator in the second polymerization reactor, on the one hand it increases the mass transfer area between the gas phase and the liquid phase material, improves reaction efficiency and reduces energy consumption, and on the other hand it results in a higher evenness of the poly-α-olefin and improved product quality.

Classes IPC  ?

• C08F 2/01 - Procédés de polymérisation caractérisés par des éléments particuliers des appareils de polymérisation utilisés
• C08F 6/00 - Traitements postérieurs à la polymérisation

Abrégé

A treatment system and method for cephalosporin wastewater are disclosed. The treatment system includes: a flocculation and sedimentation device, an alkali reaction tank, a PAC reaction tank, a PAM reaction tank, a wastewater heat exchanger, a wastewater heater and an oxidation reactor that are connected with each other in sequence, wherein the wastewater heat exchanger is provided with a material inlet, a material outlet, a heat source inlet and a heat source outlet. An oxidized water from the oxidation reactor enters the wastewater heat exchanger from the heat source inlet, the heat source outlet is connected with a product canister, the product canister is connected with a membrane filtration device to realize concentration treatment of a landfill leachate, the material inlet is connected with the PAM reaction tank, and the material outlet is connected with the wastewater heater. An outer side of the oxidation reactor is provided with a micro-interfacial generation system for dispersing and breaking a gas into bubbles. The treatment system of the prevent invention improves the contact of reaction phase interfaces after arranging the micro-interfacial generation system, which ensures a good wastewater treatment effect under relatively mild operating conditions.

Classes IPC  ?

• C02F 1/52 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par floculation ou précipitation d'impuretés en suspension
• C02F 1/72 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par oxydation
• C02F 9/00 - Traitement en plusieurs étapes de l'eau, des eaux résiduaires ou des eaux d'égout
• C02F 3/02 - Procédés aérobies
• C02F 103/34 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de l'industrie chimique non prévue dans les groupes
• C02F 1/00 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout

Abrégé

A strengthening oxidation system of the external micro-interfacial unit for producing PTA with PX is provided, including: a reactor, a circulating heat exchange device and a micro-interfacial unit. The reactor includes an outer casing and an inner cylinder disposed concentrically inside the outer casing. The circulating heat exchange device is disposed at an exterior of the reactor, and is connected with the outer casing and the inner cylinder respectively, for regulating reaction temperatures of the first reaction zone, the second reaction zone and the third reaction zone inside the reactor in a reaction process of producing PTA with PX. the micro-interfacial unit is connected between the reactor and the circulating heat exchange device, and connected with an external feed pipe of the reactor, for crushing a gas phase material into micro bubbles with a diameter greater than or equal to 1 μm and less than 1 mm and for mixing the micro bubbles with a liquid phase material to form an emulsion at the exterior of the reactor before a reaction material enters each of the reaction zones inside the reactor.

Classes IPC  ?

• B01J 10/00 - Procédés chimiques généraux faisant réagir un liquide avec des milieux gazeux autrement qu'en présence de particules solidesAppareillage spécialement adapté à cet effet
• B01J 19/00 - Procédés chimiques, physiques ou physico-chimiques en généralAppareils appropriés
• B01J 19/24 - Réacteurs fixes sans élément interne mobile
• C07C 51/16 - Préparation d'acides carboxyliques, de leurs sels, halogénures ou anhydrides par oxydation

Abrégé

A submerged propylene hydration micro-interface strengthening reaction system and a method are proposed. The system includes a reactor, a first micro-interface generator and a second micro-interface generator. Through the micro-interface generators, the propylene is broken to form micron-scale bubbles, which are mixed with reactants and deionized water to form a gas-liquid emulsion, so as to increase a phase boundary area between gas and liquid phases, and achieve a strengthening mass transfer effect under a lower preset operating condition. The micro-scale bubbles can be fully mixed with the deionized water to from a gas-liquid emulsion. By fully mixing gas and liquid phases, it can ensure that the deionized water in the system is in full contact with propylene, and they are fully in contact with the catalyst, which effectively improves the efficiency of preparing isopropanol.

Classes IPC  ?

• B01J 8/00 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés
• B01J 8/02 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés avec des particules immobiles, p. ex. dans des lits fixes
• B01J 19/00 - Procédés chimiques, physiques ou physico-chimiques en généralAppareils appropriés
• B01J 19/24 - Réacteurs fixes sans élément interne mobile
• C07C 29/48 - Préparation de composés comportant des groupes hydroxyle ou O-métal liés à un atome de carbone ne faisant pas partie d'un cycle aromatique à six chaînons par des réactions d'oxydation avec formation de groupes hydroxyle

Abrégé

A micro-interface strengthening reaction system and method for preparing polyethylene by using a solution process are provided. The system includes a pre-polymerization reactor and a polymerization reactor connected in sequence. The pre-polymerization reactor is provided with a pre-polymerization micro-interface generators, and the polymerization reactor is provided with a micro-interface generator. The system further includes a desolvation tower for removing solvents and impurities from the polyethylene product. A polyethylene inlet is disposed at a middle part of the desolvation tower, and the polyethylene inlet is connected with the flash tank bottom outlet. A nitrogen micro-interface generator for dispersing and breaking high-temperature nitrogen into micro-bubbles is disposed within the desolvation tower. Through installing the micro-interface generators on the pre-polymerization reactor and the micro-interface and on the polymerization reactor, the mass transfer area between gas phase and liquid phase is increased, the reaction efficiency is improved, and energy consumption is reduced.

Classes IPC  ?

• B01J 19/24 - Réacteurs fixes sans élément interne mobile
• B01J 8/00 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés
• C08F 2/01 - Procédés de polymérisation caractérisés par des éléments particuliers des appareils de polymérisation utilisés
• B01J 8/02 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés avec des particules immobiles, p. ex. dans des lits fixes
• C08F 10/02 - Éthylène

Abrégé

A benzene selective hydrogenation reaction system and a method are provided. The system includes a benzene refiner, a first hydrogenation reactor, a second hydrogenation reactor and a separator which are connected in sequence. The first hydrogenation reactor is provided with a first inlet and a first outlet, and the second hydrogenation reactor is provided with a second inlet and a second outlet. The first inlet is connected to the discharge port of the benzene refiner; the first outlet is connected to the second inlet; the second outlet is connected to the separator. The catalyst outlet is connected to the first hydrogenation reactor for recycling the catalyst into the first hydrogenation reactor. Two micro-interface units are respectively disposed within the first hydrogenation reactor and the second hydrogenation reactor, and the micro-interface units are used for dispersing and breaking hydrogen into micro-bubbles with a micron-scale diameter.

Classes IPC  ?

• C07C 5/11 - Hydrogénation partielle
• B01J 19/24 - Réacteurs fixes sans élément interne mobile

Abrégé

The present invention provides a fermentation system and a fermentation method therefor. The fermentation system comprises: a fermentation tank and a control system, wherein the control system is connected to the fermentation tank to control an operating state of the fermentation tank, the top of the fermentation tank is provided with a bacterial solution inlet and a feed liquid inlet for a bacterial solution and a feed liquid to enter, and a liquid outlet for discharging a fermentation product is provided in the bottom of the fermentation tank; and a liquid ejector and a micro-interface generator are arranged in the fermentation tank, the micro-interface generator is arranged at the bottom of the fermentation tank, the liquid ejector is arranged at an upper portion of the fermentation tank, a cleaning water inlet and an air inlet are provided in a side wall of the fermentation tank, the air inlet is in communication with the micro-interface generators by means of a pipeline, and the liquid ejector is connected to the cleaning water inlet by means of a pipeline. The fermentation method comprises the following steps: breaking up cleaning water into micron-sized micro-droplets to clean the interior of a fermentation tank; and dispersing and breaking up an air micro-interface, mixing the air micro-interface with a bacterial solution and a feed liquid for aerobic fermentation, and discharging and collecting a fermentation product. The fermentation system of the present invention solves the problem in the prior art of a low fermentation efficiency caused by air and fermentation liquid not being able to be be fully mixed in a fermentation tank, and saves the labor cost for cleaning and on-site operation.

Classes IPC  ?

• C12M 1/36 - Appareillage pour l'enzymologie ou la microbiologie comportant une commande sensible au temps ou aux conditions du milieu, p. ex. fermenteurs commandés automatiquement
• C12M 1/04 - Appareillage pour l'enzymologie ou la microbiologie avec des moyens d'introduction de gaz
• C12M 1/02 - Appareillage pour l'enzymologie ou la microbiologie avec des moyens d'agitationAppareillage pour l'enzymologie ou la microbiologie avec des moyens d'échange de chaleur
• C12M 1/00 - Appareillage pour l'enzymologie ou la microbiologie
• B08B 9/08 - Nettoyage de récipients, p. ex. de réservoirs
• A61L 2/07 - Procédés ou appareils de désinfection ou de stérilisation de matériaux ou d'objets autres que les denrées alimentaires ou les lentilles de contactAccessoires à cet effet utilisant des phénomènes physiques de la chaleur des gaz chauds de la vapeur
• A61L 2/025 - Procédés ou appareils de désinfection ou de stérilisation de matériaux ou d'objets autres que les denrées alimentaires ou les lentilles de contactAccessoires à cet effet utilisant des phénomènes physiques des ultrasons

Abrégé

The present invention provides an erythromycin processing system and a processing method therefor. The erythromycin processing system comprises: a fermentation device and a control system, wherein the fermentation device is formed by connecting two fermentation tanks in parallel, the top of each fermentation tank is provided with a bacterial solution inlet and a feed liquid inlet for a bacterial solution and a feed liquid to enter, and the bottom of each fermentation tank is provided with a liquid outlet for discharging a fermentation product; and each fermentation tank is internally provided with liquid ejectors and micro-interface generators, the micro-interface generators positioned at an upper portion are close to the top of the fermentation tank, the micro-interface generators positioned at a lower portion are close to the bottom of the fermentation tank, the liquid ejectors are arranged at the upper portion in the fermentation tank, two liquid ejectors are arranged on a side wall of each fermentation tank respectively, and another liquid ejector is arranged opposite the micro-interface generator at the upper portion. The processing method comprises the following steps: breaking up cleaning water into micron-sized micro-droplets to clean the interior of a fermentation device; and dispersing and breaking up an air micro-interface, mixing the air micro-interface with a bacterial solution and a feed liquid for aerobic fermentation, and discharging and collecting a fermentation product. The erythromycin processing system solves the problem in the prior art of air and a fermentation liquid not being able to be fully mixed in a fermentation tank.

Classes IPC  ?

• C12M 1/36 - Appareillage pour l'enzymologie ou la microbiologie comportant une commande sensible au temps ou aux conditions du milieu, p. ex. fermenteurs commandés automatiquement
• C12M 1/12 - Appareillage pour l'enzymologie ou la microbiologie avec des moyens de stérilisation, filtration ou dialyse
• C12M 1/04 - Appareillage pour l'enzymologie ou la microbiologie avec des moyens d'introduction de gaz
• C12M 1/02 - Appareillage pour l'enzymologie ou la microbiologie avec des moyens d'agitationAppareillage pour l'enzymologie ou la microbiologie avec des moyens d'échange de chaleur
• C12M 1/00 - Appareillage pour l'enzymologie ou la microbiologie
• B08B 9/093 - Nettoyage de récipients, p. ex. de réservoirs par la force de jets ou de pulvérisations
• C12P 19/62 - Préparation d'O-glucosides, p. ex. glucosides avec un atome d'oxygène du radical saccharide lié directement à un hétérocycle autre que saccharide ou à un système cyclique condensé contenant un hétérocycle autre que saccharide, p. ex. coumermycine, novobiocine l'hétérocycle comportant au moins huit chaînons et uniquement l'oxygène comme hétéro-atome du cycle, p. ex. érythromycine, spiramycine, nystatine

Abrégé

Provided is a hydrogenation enhancing micro-interface system. The system comprises: a middle area of a bottom surface of a hydrogenation reactor projects upwards to form a plane; liquid outlets are respectively arranged at flat parts on two sides of a projecting plane of the bottom surface of the hydrogenation reactor; a liquid inlet and a product outlet are arranged on a side wall of the hydrogenation reactor; a raw material inlet for entering an oil product is arranged at a lower position of the side wall of the hydrogenation reactor; liquid ejectors are arranged at an inner upper part and on the side wall of the hydrogenation reactor; and the bottoms of the liquid ejectors are planes, the tops thereof are semicircular arc surfaces, and a plurality of ejecting ports are successively distributed on the semicircular arc surfaces. The hydrogenation enhancing micro-interface system of the present invention saves on cleaning and field operation costs.

Classes IPC  ?

• C10G 67/02 - Traitement des huiles d'hydrocarbures, uniquement par au moins un procédé d'hydrotraitement et au moins un procédé de raffinage en l'absence d'hydrogène uniquement par plusieurs étapes en série
• C10G 75/00 - Inhibition de la corrosion ou des salissures dans des appareils de traitement ou de conversion des huiles d'hydrocarbures, en général

Abrégé

The present disclosure provides a hydrogenation micro-interface system, comprising a hydrogenation reactor. A central region at the bottom surface of the hydrogenation reactor protrudes upwards to form a plane. Liquid outlets are respectively arranged at flat parts on two sides of the plane which protrudes from the bottom surface of the hydrogenation reactor. A liquid inlet and a product outlet are arranged on a side wall of the hydrogenation reactor. A liquid jet is arranged at an upper part in the hydrogenation reactor. The bottom part of the liquid jet is a plane, and the top part of the liquid jet has a semicircular arc surface. Several jetting ports are arranged in sequence on the semicircular arc surface and have jetting directions facing the top part of the hydrogenation reactor. The liquid inlet is connected to the bottom part of the liquid jet by means of a pipeline. The product outlet is connected to a refined hydrogenation reactor to perform deep hydrogenation reaction. A gas phase separated from a reaction product from the bottom part of the refined hydrogenation reactor enters a desulfurization column such that hydrogen sulfide in the gas phase is absorbed. The hydrogenation micro-interface system of the present disclosure saves the cost of cleaning and on-site operations.

Classes IPC  ?

• C10G 67/02 - Traitement des huiles d'hydrocarbures, uniquement par au moins un procédé d'hydrotraitement et au moins un procédé de raffinage en l'absence d'hydrogène uniquement par plusieurs étapes en série
• C10G 75/00 - Inhibition de la corrosion ou des salissures dans des appareils de traitement ou de conversion des huiles d'hydrocarbures, en général

Abrégé

A citric acid fermentation system and a fermentation method therefor. The citric acid fermentation system comprises: a fermentation device and a control system, wherein the control system is connected to the fermentation device to control an operating state of the fermentation device, the fermentation device is formed by connecting a primary fermentation tank and a secondary fermentation tank in parallel, a bacterial solution inlet and a feed liquid inlet are provided in the top of each of the primary fermentation tank and the secondary fermentation tank for bacterial solution and feed liquid to enter, and liquid outlets are provided in the bottom of each of the primary fermentation tank and the secondary fermentation tank for discharging a fermentation product.

Classes IPC  ?

• C12M 1/36 - Appareillage pour l'enzymologie ou la microbiologie comportant une commande sensible au temps ou aux conditions du milieu, p. ex. fermenteurs commandés automatiquement
• C12M 1/04 - Appareillage pour l'enzymologie ou la microbiologie avec des moyens d'introduction de gaz
• C12M 1/00 - Appareillage pour l'enzymologie ou la microbiologie
• B08B 9/093 - Nettoyage de récipients, p. ex. de réservoirs par la force de jets ou de pulvérisations

Abrégé

The present invention provides a penicillin refining system and a refining method therefor. The penicillin refining system comprises: a fermentation tank and a control system, wherein the top portion of the fermentation tank is provided with a bacterial solution inlet and a feed liquid inlet for bacterial solution and feed liquid to enter, and the bottom portion of the fermentation tank is provided with a liquid outlet for discharging a fermentation product; and liquid ejectors and micro-interface generators are arranged in the fermentation tank, the micro-interface generator located on an upper portion is close to the top portion of the fermentation tank, the micro-interface generator located on a lower portion is close to the bottom portion of the fermentation tank, the liquid ejectors are arranged on an upper portion in the fermentation tank, two liquid ejectors are arranged on side walls of the fermentation tank respectively, and another liquid ejector is arranged opposite the upper micro-interface generator. The refining method comprises the following steps: breaking up cleaning water into micron-sized micro-droplets to clean the interior of a fermentation tank; and dispersing and breaking up an air micro-interface, mixing the air micro-interface with a bacterial solution and feed liquid for aerobic fermentation, and discharging and collecting a fermentation product. The penicillin refining system solves the problem in the prior art of low fermentation efficiency due to the fact that air and fermentation liquid cannot be fully mixed in a fermentation tank, and saves on the labor cost for cleaning and field operations.

Classes IPC  ?

• C12P 37/00 - Préparation de composés comportant un système cyclique thia-4 aza-1 bicyclo [3.2.0] heptane, p. ex. pénicilline
• C12M 1/00 - Appareillage pour l'enzymologie ou la microbiologie
• C12M 1/36 - Appareillage pour l'enzymologie ou la microbiologie comportant une commande sensible au temps ou aux conditions du milieu, p. ex. fermenteurs commandés automatiquement

Abrégé

The present invention provides a micro-interface fermentation system and a fermentation method using same. The micro-interface fermentation system comprises a fermentation tank and a control system, a microbial strain liquid inlet and a material liquid inlet are formed at the top of the fermentation tank to allow for feeding of a microbial strain liquid and a material liquid, and liquid outlets are formed at the bottom of the fermentation tank to allow for discharge of a fermentation product; a liquid injector and micro-interface generators are arranged in the fermentation tank, two micro-interface generators are provided and arranged in parallel at the lower part of the fermentation tank from top to bottom, the liquid injector is arranged at the upper part of the fermentation tank, cleaning water inlets and air inlets are formed on the sidewall of the fermentation tank, the air inlets are communicated with the micro-interface generators by means of pipes, and the air inlets have one-to-one correspondence to the micro-interface generators. The fermentation method comprises the following steps: breaking cleaning water into micron-sized microdroplets to clean the interior of a fermentation tank; and breaking and dispersing air by means of micro-interfaces, mixing the air with a microbial strain liquid and a material liquid for aerobic fermentation, and discharging and collecting a fermentation product. The micro-interface fermentation system of the present invention solves the problem in the prior art of low fermentation efficiency resulting from that air and a fermentation liquid cannot be fully mixed in a fermentation tank, and saves the labor costs of cleaning and on-site operation.

Classes IPC  ?

• C12M 1/36 - Appareillage pour l'enzymologie ou la microbiologie comportant une commande sensible au temps ou aux conditions du milieu, p. ex. fermenteurs commandés automatiquement
• C12M 1/12 - Appareillage pour l'enzymologie ou la microbiologie avec des moyens de stérilisation, filtration ou dialyse
• C12M 1/04 - Appareillage pour l'enzymologie ou la microbiologie avec des moyens d'introduction de gaz
• C12M 1/02 - Appareillage pour l'enzymologie ou la microbiologie avec des moyens d'agitationAppareillage pour l'enzymologie ou la microbiologie avec des moyens d'échange de chaleur
• C12M 1/00 - Appareillage pour l'enzymologie ou la microbiologie
• B08B 9/093 - Nettoyage de récipients, p. ex. de réservoirs par la force de jets ou de pulvérisations

Abrégé

Disclosed is a spraying system. The spraying system comprises a tank body (10), wherein the middle area of a bottom surface of the tank body (10) protrudes upwards to form a plane; liquid outlets (102) are formed in flat portions on two sides of the protruding plane of the bottom surface of the tank body respectively; a liquid inlet (101) is formed in a side wall of the tank body (10); a liquid ejector (103) is arranged on the upper portion of the interior of the tank body (10); the bottom portion of the liquid ejector (103) is a plane, and the top portion of the liquid ejector is a semicircular arc surface; several injection openings (1031) are sequentially formed in the semicircular arc surface; the injection direction of the injection openings (1031) faces the top portion of the tank body (10); and the liquid inlet (101) is connected to the bottom portion of the liquid ejector (103) through a pipeline. According to the spraying system, the labor costs for cleaning and field operations are saved on.

Classes IPC  ?

• B08B 3/02 - Nettoyage par la force de jets ou de pulvérisations
• B08B 9/093 - Nettoyage de récipients, p. ex. de réservoirs par la force de jets ou de pulvérisations
• C12M 1/00 - Appareillage pour l'enzymologie ou la microbiologie

Abrégé

A wet-type oxidation enhancing micro-interface system, comprising a waste-water heat exchanger (30), a waste-water heater (40) and an oxidation reactor (10), wherein the waste-water heat exchanger (30) is provided with a material inlet (301), a material outlet (302), a heat source inlet (303) and a heat source outlet (304); oxidation water from the oxidation reactor (10) enters the waste-water heat exchanger (30) from the heat source inlet (303); the material outlet (302) is connected to the waste-water heater (40); liquid outlets (102) are arranged at flat parts on two sides of a projecting plane of a bottom surface of the oxidation reactor (10); a liquid inlet (101) and a waste-water inlet (107) are arranged on a side wall of the oxidation reactor (10); liquid ejectors (103) are arranged inside the oxidation reactor (10); and the tops of the liquid ejectors (103) are in the shape of a semicircular arc surface, on which a plurality of ejecting ports (1031) are successively distributed; and the liquid inlet (101) is connected to the bottom of the liquid ejector (103) at an upper part thereof by means of a pipeline, and the waste-water inlet (107) is connected to the bottom of the liquid ejector (103) on a side wall by means of a pipeline. The wet-type oxidation enhancing micro-interface system saves on cleaning and field operation costs.

Classes IPC  ?

• C02F 9/10 - Traitement thermique
• B08B 9/093 - Nettoyage de récipients, p. ex. de réservoirs par la force de jets ou de pulvérisations

Abrégé

Provided is a wet oxidation micro-interface system, the wet oxidation micro-interface system comprising: a wastewater heat exchanger, a wastewater heater, and an oxidation reactor, a material inlet, a material outlet, a heat source inlet, and a heat source outlet all being provided on the wastewater heat exchanger; oxidized water coming from the oxidation reactor enters into the wastewater heat exchanger via the heat source inlet, and the material outlet is connected to the wastewater heater; an intermediate region at a bottom face of the oxidation reactor upwardly protrudes and becomes a flat surface, liquid outlets are respectively arranged at level parts at two sides of the protruding flat surface at the bottom face of the oxidation reactor, and a liquid inlet is arranged on a side wall of the oxidation reactor; a liquid sprayer is arranged at an upper part within the oxidation reactor, a bottom part of the liquid sprayer is a flat surface, and a top part is a semicircular arcing face, a plurality of spray openings are sequentially arranged on the semicircular arcing face, a spray direction of the spray openings is oriented toward a top part of the oxidation reactor, and the liquid inlet is connected to a bottom part of the liquid sprayer by means of a pipe. The wet oxidation micro-interface system of the present invention saves on cleaning and on-site operation costs.

Classes IPC  ?

• C02F 9/10 - Traitement thermique

Abrégé

Provided is an enhanced micro-interface preparation system and method for p-methylphenol. The enhanced micro-interface preparation system comprises an oxidation reactor and a pipeline reactor, wherein the side wall of the oxidation reactor is sequentially provided with an oxygen inlet and a p-methyl isopropylbenzene and catalyst mixing inlet, two micro-interface generators are arranged in the oxidation reactor in an up-and-down staggered manner, a plurality of rows of spewing pipelines are arranged right below the micro-interface generators, a plurality of spewing openings are arranged in each row of the spewing pipelines, and the spraying directions of the spewing openings face upwards; and the oxygen inlet is directly communicated with the interior of the upper micro-interface generator through a pipeline. According to the reinforced micro-interface preparation system of the invention, the micro-interface generators are arranged in the oxidation reactor, such that oxygen is broken into micro-bubbles before p-methyl isopropylbenzene is subjected to an oxidation reaction, and the phase boundary mass transfer area between the oxygen and the p-methyl isopropylbenzene is increased.

Classes IPC  ?

• C07C 37/08 - Préparation de composés comportant des groupes hydroxyle ou O-métal liés à un atome de carbone d'un cycle aromatique à six chaînons par décomposition d'hydroperoxydes, p. ex. de l'hydroperoxyde du cumène
• C07C 37/70 - SéparationPurificationStabilisationEmploi d'additifs par traitement physique
• C07C 37/74 - SéparationPurificationStabilisationEmploi d'additifs par traitement physique par distillation
• C07C 39/07 - Phénols alkylés ne contenant comme groupes alkyles que des groupes méthyle, p. ex. crésols, xylénols

Abrégé

Provided are a microinterface preparation system for p-methylphenol and a method. The microinterface preparation system comprises: an oxidation reactor and a pipe reactor. The inside diameter of the pipe reactor is 2-25 mm; the side wall of the oxidation reactor is successively provided with an oxygen inlet and a mixed inlet of p-cymene and a catalyst; a microinterface generator is provided inside the oxidation reactor; multiple nozzles are provided directly below the microinterface generator, and a spraying direction of the nozzles is upward; the oxygen inlet is directly communicated with the interior of the microinterface generator by means of a pipe, such that before an oxidation reaction, oxygen is broken into micron-level microbubbles in the microinterface generator. According to the microinterface preparation system, the microinterface generator is provided in the oxidation reactor, such that before an oxidation reaction is performed on p-cymene, oxygen is broken into microbubbles, and thus, the phase interface mass transfer area between oxygen and p-cymene is increased, and the phase interface mass transfer area during the process of the oxidation reaction is increased.

Classes IPC  ?

• C07C 37/08 - Préparation de composés comportant des groupes hydroxyle ou O-métal liés à un atome de carbone d'un cycle aromatique à six chaînons par décomposition d'hydroperoxydes, p. ex. de l'hydroperoxyde du cumène

Abrégé

An intensified microinterface preparation system and method for polyglycolic acid. The intensified microinterface preparation system comprises: a hydrogenation reactor, a hydrogen feed pipe, a hydrolysis reactor, and a water vapor feed pipe. An oxalate ester feed pipe is provided on the side wall of the hydrogenation reactor; a microinterface unit is provided inside the hydrogenation reactor, the microinterface unit being formed by successively arranging multiple microinterface generators from top to bottom; the hydrogen feed pipe passes through the side wall of the hydrogenation reactor to enter the interior of the microinterface unit, so as to break, before a hydrogenation reaction, hydrogen into micron-level microbubbles in the microinterface unit in advance. According to the intensified microinterface preparation system, the microinterface unit is provided inside the hydrogenation reactor, and the microinterface generators are provided on the side of the hydrolysis reactor, such that hydrogen is broken into microbubbles before a hydrogenation reaction of hydrogen and dimethyl oxalate, and thus, the phase interface mass transfer area between hydrogen and dimethyl oxalate is increased.

Classes IPC  ?

• C08G 63/06 - Polyesters dérivés soit d'acides hydroxycarboxyliques, soit d'acides polycarboxyliques et de composés polyhydroxylés dérivés des acides hydroxycarboxyliques
• C08G 63/78 - Procédés de préparation
• C08G 63/79 - Procédés d'interface, c.-à-d. procédés faisant intervenir une réaction à l'interface de deux liquides non miscibles
• C08G 63/08 - Lactones ou lactides
• C07D 319/12 - Dioxanes-1, 4Dioxanes-1, 4 hydrogénés non condensés avec d'autres cycles
• C07C 67/31 - Préparation d'esters d'acides carboxyliques par modification de la partie acide de l'ester sans introduction d'un groupe ester par introduction de groupes fonctionnels avec de l'oxygène lié uniquement par liaison simple
• C07C 69/675 - Esters d'acides carboxyliques dont le groupe carboxyle estérifié est lié à un atome de carbone acyclique et dont l'un des groupes OH, O-métal, —CHO, céto, éther, acyloxy, des groupes , des groupes ou des groupes se trouve dans la partie acide d'acides saturés d'acides hydroxycarboxyliques saturés
• B01J 8/00 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés
• B01J 19/00 - Procédés chimiques, physiques ou physico-chimiques en généralAppareils appropriés
• B01J 4/00 - Dispositifs d'alimentationDispositifs de commande d'alimentation ou d'évacuation
• F17D 1/00 - Systèmes de canalisation
• F17D 1/20 - Aménagements ou ensembles de dispositifs pour influencer ou modifier les caractéristiques dynamiques des systèmes, p. ex. pour amortir les pulsations dues à l'ouverture ou à la fermeture des vannes

Abrégé

Provided are a reaction system and method for preparing a glycolate by using oxalate hydrogenation. The reaction system comprises: a hydrogenation reactor, and a hydrogen feed pipe. The side wall of the hydrogenation reactor is provided with an oxalate feed pipe, and the hydrogenation reactor is provided therein with a micro-interfacial unit formed by arranging a plurality of micro-interfacial generators from top to bottom in sequence. The hydrogen feed pipe passes through the side wall of the hydrogenation reactor and enters the interior of the micro-interfacial unit, so that hydrogen is broken into micron-level micro-bubbles in advance in the interior of the micro-interfacial unit before the hydrogenation reaction. Reaction products after the hydrogenation reaction in the hydrogenation reactor enter a light component removal tower to remove light components, and then enter a rectification tower for rectification treatment, so as to obtain a glycolate. In the reaction system, the micro-interface unit is provided inside the hydrogenation reactor, so that hydrogen is broken into micro-bubbles before a hydrogenation reaction is carried out between hydrogen and dimethyl oxalate, thereby increasing the phase boundary mass transfer area between hydrogen and dimethyl oxalate.

Classes IPC  ?

• C07C 67/31 - Préparation d'esters d'acides carboxyliques par modification de la partie acide de l'ester sans introduction d'un groupe ester par introduction de groupes fonctionnels avec de l'oxygène lié uniquement par liaison simple
• C07C 69/675 - Esters d'acides carboxyliques dont le groupe carboxyle estérifié est lié à un atome de carbone acyclique et dont l'un des groupes OH, O-métal, —CHO, céto, éther, acyloxy, des groupes , des groupes ou des groupes se trouve dans la partie acide d'acides saturés d'acides hydroxycarboxyliques saturés
• B01J 19/00 - Procédés chimiques, physiques ou physico-chimiques en généralAppareils appropriés

Abrégé

Provided in the present invention are a micro-interface preparation system and method for cyclic carbonate, the micro-interface preparation system comprising: a stirring kettle and a carboxylation reaction kettle, the stirring kettle and the carboxylation reaction kettle both being filled with an ionic liquid catalyst; a side surface of the stirring vessel is provided with a micro-interface unit, the micro-interface unit being composed of a plurality of micro-interface generators, a main pipeline leading into the micro-interface unit being simultaneously connected to an oxidant delivery pipeline and two branch pipelines of an olefin delivery pipeline, carbon dioxide being introduced into the micro-interface unit from a gas source delivery pipeline, and the carbon dioxide, oxidant, and olefin entering the interior of the micro-interface unit in order to be used for breaking the carbon dioxide gas into micron-level micro bubbles. The micro-interface preparation system of the present invention increases the phase boundary mass transfer area between the carbon dioxide and cyclic carbonate formed in situ during the carboxylation reaction process, performing full mixing and then performing the carboxylation reaction.

Classes IPC  ?

• B01J 19/00 - Procédés chimiques, physiques ou physico-chimiques en généralAppareils appropriés
• B01J 4/00 - Dispositifs d'alimentationDispositifs de commande d'alimentation ou d'évacuation
• C07D 317/36 - Carbonates d'alkylèneCarbonates d'alkylène substitués
• C07D 317/38 - Carbonate d'éthylène

Abrégé

Provided are a reinforced micro-interface preparation system and method for a cyclic carbonate. Said preparation system comprises: a stirring kettle, a first carboxylation reaction kettle and a second carboxylation reaction kettle. The stirring kettle, the first carboxylation reaction kettle and the second carboxylation reaction kettle are all filled with an ionic liquid catalyst. A micro-interface unit is provided on a side face of the stirring kettle, and the micro-interface unit is composed of several external micro-interface generators. The reinforced micro-interface preparation system increases the phase boundary mass transfer area between carbon dioxide and an epoxy compound generated in situ during a carboxylation reaction, and performs sufficient mixing and then performs a carboxylation reaction, thereby solving the problem in the prior art that carbon dioxide and an epoxy compound cannot be fully mixed in a carboxylation reaction kettle.

Classes IPC  ?

• C07D 317/36 - Carbonates d'alkylèneCarbonates d'alkylène substitués

Abrégé

The present invention provides a reaction system and method for hydrogenation of petroleum resin. The reaction system comprises: a pre-hydrogenation reactor provided with a plurality of catalyst beds; micro-interface generators are arranged between the catalyst beds inside the pre-hydrogenation reactor; and the side wall of the pre-hydrogenation reactor is respectively provided with a raw material inlet and a hydrogen inlet, hydrogen is pre-heated by means of a hydrogen pre-heater and then enters the micro-interface generators from the hydrogen inlet, and a raw petroleum resin solution is pre-heated by a raw material pre-heater and then enters the micro-interface generators from the raw material inlet. Combined with the micro-interface generators, the reaction system provided in the present invention reduces energy consumption and reaction temperature, increases reaction yield, improves the utilization rate of raw materials, especially the utilization rate of hydrogen, and effectively increases production capacity.

Classes IPC  ?

• C08F 240/00 - Copolymères d'hydrocarbures et d'huiles minérales, p. ex. résines de pétrole
• C08F 8/04 - Réduction, p. ex. hydrogénation
• C10G 67/02 - Traitement des huiles d'hydrocarbures, uniquement par au moins un procédé d'hydrotraitement et au moins un procédé de raffinage en l'absence d'hydrogène uniquement par plusieurs étapes en série
• B01J 8/00 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés

Abrégé

Provided are an external micro-interface strengthening system and method for preparing butyl octanol by carbonylation of propylene. The external micro-interface strengthening system comprises a carbonyl synthesis reactor, the side wall of the carbonyl synthesis reactor is provided with a raw material inlet, a micro-interface unit for dispersing crushed materials into micro-bubbles is arranged at the raw material inlet, and the micro-interface unit comprises a first micro-interface generator and a second micro-interface generator which are sequentially and horizontally connected in series. After the micro-interface unit is arranged at the raw material inlet of the carbonyl synthesis reactor, the external micro-interface strengthening system solves the problem of low system reaction efficiency in the prior art due to the fact that synthesis gas, propylene and a catalyst cannot be fully mixed in a reactor.

Classes IPC  ?

• C07C 29/17 - Préparation de composés comportant des groupes hydroxyle ou O-métal liés à un atome de carbone ne faisant pas partie d'un cycle aromatique à six chaînons par hydrogénation de liaisons doubles ou triples carbone-carbone
• C07C 29/80 - SéparationPurificationStabilisationEmploi d'additifs par traitement physique par distillation
• C07C 31/125 - Alcools monohydroxyliques acycliques contenant de cinq à vingt-deux atomes de carbone
• C07C 29/141 - Préparation de composés comportant des groupes hydroxyle ou O-métal liés à un atome de carbone ne faisant pas partie d'un cycle aromatique à six chaînons par réduction d'un groupe fonctionnel contenant de l'oxygène de groupes contenant C=O, p. ex. —COOH d'un groupe —CHO avec de l'hydrogène ou des gaz contenant de l'hydrogène
• C07C 31/12 - Alcools monohydroxyliques acycliques contenant quatre atomes de carbone
• C07C 45/50 - Préparation de composés comportant des groupes C=O liés uniquement à des atomes de carbone ou d'hydrogènePréparation des chélates de ces composés par réaction avec le monoxyde de carbone par synthèse oxo
• C07C 47/02 - Composés saturés comportant des groupes —CHO liés à des atomes de carbone acycliques ou à de l'hydrogène
• C07C 45/74 - Préparation de composés comportant des groupes C=O liés uniquement à des atomes de carbone ou d'hydrogènePréparation des chélates de ces composés par des réactions ne créant pas de groupe C=O par isomérisationPréparation de composés comportant des groupes C=O liés uniquement à des atomes de carbone ou d'hydrogènePréparation des chélates de ces composés par des réactions ne créant pas de groupe C=O par modification de la taille du squelette carboné par augmentation du nombre d'atomes de carbone par réaction de composés comportant des groupes C=O sur eux-mêmes ou avec d'autres composés comportant des groupes C=O combinée avec une déshydratation
• C07C 47/21 - Composés non saturés comportant des groupes —CHO liés à des atomes de carbone acycliques avec uniquement des liaisons doubles carbone-carbone comme insaturation
• B01J 19/00 - Procédés chimiques, physiques ou physico-chimiques en généralAppareils appropriés

Abrégé

The present invention provides a micro-interface reaction system and method for hydrogenation of a petroleum resin. The micro-interface reaction system comprises: a pre-hydrogenation reactor provided with two catalyst beds, and a circulating hydrogen channel and a fresh hydrogen channel. Side walls of the pre-hydrogenation reactor are respectively provided with a raw material inlet and a hydrogen inlet, and micro-interface generators are respectively provided between the two catalyst beds and the bottom of the pre-hydrogenation reactor. The combination of a micro-interface generator with the micro-interface reaction system provided by the present invention reduces energy consumption, lowers reaction temperature, improves reaction yield, increases the utilization rate of raw materials, especially the utilization rate of hydrogen, and effectively increases production capacity.

Classes IPC  ?

• C08F 240/00 - Copolymères d'hydrocarbures et d'huiles minérales, p. ex. résines de pétrole
• C08F 8/04 - Réduction, p. ex. hydrogénation
• C10G 67/02 - Traitement des huiles d'hydrocarbures, uniquement par au moins un procédé d'hydrotraitement et au moins un procédé de raffinage en l'absence d'hydrogène uniquement par plusieurs étapes en série
• B01J 8/00 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés

Abrégé

Disclosed are a reaction system and method for preparing sodium N-methyltaurate. The reaction system comprises: an amination reaction kettle, an amination reaction product from which undergoes a reaction in a tubular reactor and then enters a first gas-liquid separation tank. A micro-interface generator for dispersing and crushing a material into micro-bubbles is provided inside the amination reaction kettle, and a sidewall of the amination reaction kettle is provided with a liquid phase material inlet for introducing sodium hydroxyethylsulfonate and a methylamine inlet. The methylamine inlet is arranged in a manner of allowing a methylamine delivery pipe to pass therethrough. The methylamine delivery pipe enters the amination reaction kettle and is connected to the micro-interface generator for introducing methylamine into the interior of the micro-interface generator. By providing the micro-interface reactor inside the amination reaction kettle, the problem in the prior art of system reaction efficiency being low due to methylamine and sodium hydroxyethylsulfonate not being able to be fully mixed in a reaction kettle is solved.

Classes IPC  ?

• C07C 303/32 - Préparation d'esters ou d'amides d'acides sulfuriquesPréparation d'acides sulfoniques ou de leurs esters, halogénures, anhydrides ou amides de sels d'acides sulfoniques
• C07C 303/44 - SéparationPurification
• C07C 309/14 - Acides sulfoniques ayant des groupes sulfo liés à des atomes de carbone acycliques d'un squelette carboné acyclique saturé contenant des atomes d'azote, ne faisant pas partie de groupes nitro ou nitroso, liés au squelette carboné contenant des groupes amino liés au squelette carboné
• B01J 19/00 - Procédés chimiques, physiques ou physico-chimiques en généralAppareils appropriés

Abrégé

Provided are a micro-interface strengthening system and method for preparing sodium N-methyl taurate, comprising an amination reaction kettle. A amination reaction product from the amination reaction kettle enters a first gas-liquid separation tank after reacting by means of a tubular reactor. A side wall of the amination reaction kettle is provided with a raw material inlet. The raw material inlet is provided with a micro-interface generator for dispersing crushed materials into microbubbles. A side wall of the micro-interface generator is provided with a methylamine inlet, and the methylamine inlet is connected to a vaporizer for vaporizing methylamine. By means of providing a micro-interface reactor at the raw material inlet of the amination reaction kettle, the micro-interface strengthening system for preparing sodium N-methyl taurate solves the problem in the prior art in which methylamine and sodium isethionate cannot be fully mixed inside the reaction kettle, which results in low system reaction efficiency.

Classes IPC  ?

• B01J 4/00 - Dispositifs d'alimentationDispositifs de commande d'alimentation ou d'évacuation
• C07C 303/32 - Préparation d'esters ou d'amides d'acides sulfuriquesPréparation d'acides sulfoniques ou de leurs esters, halogénures, anhydrides ou amides de sels d'acides sulfoniques
• C07C 303/44 - SéparationPurification
• C07C 309/14 - Acides sulfoniques ayant des groupes sulfo liés à des atomes de carbone acycliques d'un squelette carboné acyclique saturé contenant des atomes d'azote, ne faisant pas partie de groupes nitro ou nitroso, liés au squelette carboné contenant des groupes amino liés au squelette carboné

Abrégé

The invention provides a treatment system and a treatment method for PMIDA high-salinity wastewater. The treatment system includes a booster pump, a water inlet-outlet heat exchanger, a water inlet heater and an oxidation reactor, and the water inlet-outlet heat exchanger is provided with a wastewater inlet, a wastewater outlet, an oxidized water inlet, and an oxidized water outlet. An oxidized water from the oxidation reactor enters the water inlet-outlet heat exchanger through the oxidized water inlet, the oxidized water outlet is connected to an intermediate tank, the wastewater inlet is connected to the booster pump, and the wastewater outlet is connected to a wastewater heater. A micro-interface unit is disposed at the lower part in the oxidation reactor, for dispersing crushed gas into bubbles. A gas inlet is formed at a side wall of the oxidation reactor and is connected to the micro-interface unit through a pipeline.

Classes IPC  ?

• C02F 1/72 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par oxydation
• C02F 1/02 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par chauffage
• C02F 1/74 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par oxydation au moyen de l'air
• C02F 101/36 - Composés organiques contenant des atomes d'halogène
• C02F 101/38 - Composés organiques contenant de l'azote
• C02F 103/36 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de l'industrie chimique non prévue dans les groupes provenant de la fabrication de composés organiques
• C02F 101/30 - Composés organiques

Abrégé

A built-in micro-interface papermaking wastewater treatment system and a treatment method are provided in the present invention. The treatment system includes a papermaking wastewater tank, a grid cleaner, an adjustment tank, a centrifugal filter and a sedimentation tank which are connected in sequence, and further includes a heat exchanger, a preheater, a wet oxidation reactor, a gas-liquid separator and a biodegradation tank. A micro-interface unit for dispersing and crushing gas into gas bubbles is disposed inside the wet oxidation reactor. The micro-interface unit includes a pneumatic micro-interface generator, a gas inlet is disposed at a side wall of the wet oxidation reactor, and the gas inlet extends to an interior of the pneumatic micro-interface generator through a pipeline. By arranging the micro-interface unit inside the wet oxidation reactor of the treatment system, the consumption of air or oxygen can be reduced, which realizes low energy consumption and high treatment efficiency.

Classes IPC  ?

• C02F 9/00 - Traitement en plusieurs étapes de l'eau, des eaux résiduaires ou des eaux d'égout
• C02F 1/72 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par oxydation
• C02F 1/00 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout
• C02F 1/02 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par chauffage
• C02F 1/74 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par oxydation au moyen de l'air
• C02F 1/20 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dégazage, c.-à-d. par libération des gaz dissous
• C02F 103/28 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant du traitement de plantes ou de parties de celles-ci provenant de l'industrie du papier ou de la cellulose
• C02F 3/00 - Traitement biologique de l'eau, des eaux résiduaires ou des eaux d'égout
• C02F 101/20 - Métaux lourds ou leurs composés
• C02F 101/30 - Composés organiques
• C02F 1/38 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par séparation centrifuge

Abrégé

The present invention provides a preparation system and method for halogenated benzaldehyde. The preparation system comprises a batching tank and a gas-liquid enhanced reactor which are connected in sequence; a solvent, halogenated toluene, and a catalyst enter the batching tank to be uniformly mixed, and then enter the gas-liquid enhanced reactor to be subjected to an enhanced reaction; a side wall of the gas-liquid enhanced reactor is provided with an oxygen inlet, and the bottom of the gas-liquid enhanced reactor is provided with a mixed material outlet; the mixed material outlet is connected to a rectifying tower for rectification separation, substances flowing out of the bottom of the rectifying tower enter a flash tower for separation, substances coming out of the top of the flash tower enter a product tower for product purification, and halogenated benzaldehyde is obtained. According to the preparation system provided by the present invention, the utilization rate of raw materials is increased, halogenated benzaldehyde having a purity of 99wt% or above and halogenated benzoic acid having a purity of 98wt% or above can be obtained at the same time, the circulation of the catalyst and the solvent can be better implemented, and the advantages of high reaction efficiency, low energy consumption, and less three wastes are achieved.

Classes IPC  ?

• C07C 45/36 - Préparation de composés comportant des groupes C=O liés uniquement à des atomes de carbone ou d'hydrogènePréparation des chélates de ces composés par oxydation avec l'oxygène moléculaire de restes —CHx dans des composés non saturés dans des composés contenant des cycles aromatiques à six chaînons
• C07C 45/82 - SéparationPurificationStabilisationEmploi d'additifs par modification de l'état physique, p. ex. par cristallisation par distillation
• C07C 47/55 - Composés comportant des groupes —CHO liés à des atomes de carbone de cycles aromatiques à six chaînons contenant des atomes d'halogène

Abrégé

Disclosed are a reaction system and method for preparing a halogenated benzaldehyde by oxidizing a halogenated toluene. The reaction system comprises: a batching tank and a gas-liquid intensification reactor connected in sequence. After a solvent, a halogenated toluene, and a catalyst enter the batching tank and are mixed uniformly, the mixture enters the gas-liquid intensification reactor and undergoes an intensified reaction. A side wall of the gas-liquid intensification reactor is provided with an oxygen inlet, and the bottom of the gas-liquid intensification reactor is provided with a mixture outlet. The mixture outlet is connected to a rectification column for rectification and separation. Substances flowing out of the bottom of the rectification column enter a flash column where the substances are separated, and a substance output from the top of the flash column enters a product column where the product is purified to give a halogenated benzaldehyde. The disclosed reaction system improves the raw material utilization rate, can simultaneously obtain a halogenated benzaldehyde with a purity of 99 wt% or more and a halogenated benzoic acid with a purity of 98 wt% or more, can better circulate the catalyst and the solvent, and has the advantages of high reaction efficiency, low energy consumption, and reduced solid, liquid and gaseous waste.

Classes IPC  ?

• C07C 51/265 - Préparation d'acides carboxyliques, de leurs sels, halogénures ou anhydrides par oxydation avec l'oxygène moléculaire de composés contenant des cycles aromatiques à six chaînons sans ouverture du cycle comportant des chaînes latérales alkylées qui sont oxydées en groupes carboxyle
• C07C 47/55 - Composés comportant des groupes —CHO liés à des atomes de carbone de cycles aromatiques à six chaînons contenant des atomes d'halogène
• C07C 63/10 - Ses halogénures
• B01J 8/00 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés

Abrégé

Provided are a reaction system and method for preparing ethanol using syngas. The reaction system comprises: a methanol preparation unit, a reaction unit for preparing dimethyl ether from methanol and a reaction unit for preparing ethanol from dimethyl ether that are connected in sequence. The methanol preparation unit comprises a microbubble generator and a synthesis column. An inert oil and a syngas are simultaneously introduced into the microbubble generator, mixed, dispersed and crushed, enter into the synthesis column, and yield crude methanol through synthesis reactions. The crude methanol is distilled successively in a first distillation column and a second distillation column to obtain refined methanol, which is conveyed to the reaction unit for preparing dimethyl ether from methanol. The reaction system provided reduces energy consumption, reduces reaction temperature, improves raw material utilization and effectively enhances productivity.

Classes IPC  ?

• C07C 29/152 - Préparation de composés comportant des groupes hydroxyle ou O-métal liés à un atome de carbone ne faisant pas partie d'un cycle aromatique à six chaînons par réduction exclusivement des oxydes de carbone avec de l'hydrogène ou des gaz contenant de l'hydrogène caractérisée par le réacteur utilisé
• C07C 31/04 - Méthanol
• C07C 41/09 - Préparation d'éthers par déshydratation de composés contenant des groupes hydroxyle
• C07C 43/04 - Éthers saturés
• C07C 29/149 - Préparation de composés comportant des groupes hydroxyle ou O-métal liés à un atome de carbone ne faisant pas partie d'un cycle aromatique à six chaînons par réduction d'un groupe fonctionnel contenant de l'oxygène de groupes contenant C=O, p. ex. —COOH d'acides carboxyliques ou de leurs dérivés avec de l'hydrogène ou des gaz contenant de l'hydrogène
• C07C 31/08 - Éthanol
• C07C 67/37 - Préparation d'esters d'acides carboxyliques par réaction avec du monoxyde de carbone ou des formiates obtenus par réaction d'éthers avec l'oxyde de carbone
• C07C 69/14 - Esters d'acide acétique de composés monohydroxylés
• B01F 3/04 - Mélange, p.ex. dispersion, émulsion, selon les phases à mélanger de gaz ou de vapeurs avec des liquides
• B01J 19/00 - Procédés chimiques, physiques ou physico-chimiques en généralAppareils appropriés

Abrégé

A micro-interface reaction system and method for diesel hydrogenation. The micro-interface reaction system comprises a hydrogenation reactor (10); a plurality of fixed bed layers (102) are sequentially provided inside the hydrogenation reactor (10) from top to bottom; a catalyst is filled in the fixed bed layers (102); a micro-interface generator (101) is provided between every two adjacent fixed bed layers (102); a hydrogen inlet (103) is formed on the micro-interface generator (101); a product outlet (105) is formed on the sidewall of the hydrogenation reactor (10); the product outlet (105) is connected to a hydrofining reactor (20) to perform a deep hydrogenation reaction; and a reaction product discharged from the bottom of the hydrofining reactor (20) is introduced into a gas-liquid separation tank (70) to separate a gas phase containing hydrogen sulfide and hydrogen from the product, thereby obtaining a final product, i.e., desulfurized diesel. The micro-interface reaction system is combined with the micro-interface generators (101), thereby reducing energy consumption and a reaction temperature, improving a reaction yield rate, improving the utilization rate of a raw material, particularly improving the utilization rate of hydrogen, and effectively improving the productivity.

Classes IPC  ?

• B01J 8/04 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés avec des particules immobiles, p. ex. dans des lits fixes le fluide passant successivement à travers plusieurs lits
• C10G 45/02 - Raffinage des huiles d'hydrocarbures au moyen d'hydrogène ou de composés donneurs d'hydrogène pour éliminer des hétéro-atomes sans modifier le squelette de l'hydrocarbure mis en œuvre et sans craquage en hydrocarbures à point d'ébullition inférieurHydrofinissage

Abrégé

A reaction system and method for the hydrogenation of an anthracene oil. The reaction system comprises: a micro-interface generator (20) and a hydrogenation reactor (50) which are connected in sequence. Hydrogen and an anthracene oil are introduced into the micro-interface generator (20); and the side wall of the hydrogenation reactor (50) is provided with a hydrogenation product outlet, the product coming out of the hydrogenation product outlet is introduced to a first separation tank (60) for the separation of a hot high molecular weight gas and a hot high molecular weight oil, the hot high molecular weight gas enters a second separation tank (70) and is separated into a cold high molecular weight gas and a cold high molecular weight oil, the hot high molecular weight oil enters a third separation tank (110) and is separated into a hot low-molecular weight gas and a hot low molecular weight oil, the hot low-molecular weight oil enters a cracking reactor (80) for a cracking reaction, and the resulting cracking reaction products then enter a fractionation tower for fractionation. By being combined with the micro-interface generator (20), the reaction system reduces the energy consumption, reduces the reaction temperature, improves the reaction yield, improves the utilization rate of raw materials, particularly improves the utilization rate of hydrogen, and also effectively improves the productivity.

Classes IPC  ?

• B01J 8/00 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés
• C10G 67/00 - Traitement des huiles d'hydrocarbures, uniquement par au moins un procédé d'hydrotraitement et au moins un procédé de raffinage en l'absence d'hydrogène

Abrégé

Provided are a reaction system and method for coal-to-ethanol. The reaction system comprises a methanol-to-dimethyl ether reaction unit and a dimethyl ether-to-ethanol reaction unit which are connected in sequence, wherein the methanol is prepared from the gasification of coal. The methanol-to-dimethyl ether reaction unit comprises a dimethyl ether reactor. Methanol is introduced into the dimethyl ether reactor for a vapor-phase catalytic dehydration reaction. The dimethyl ether-to-ethanol reaction unit comprises a carbonylation reactor, and the outer side of the carbonylation reactor is provided with a first micro-interface generator. Dimethyl ether, which is separated from the stripping column, and carbon monoxide are introduced into the first micro-interface generator, and same are then dispersed and crushed by means of the first micro-interface generator and then enter the carbonylation reactor for a reaction. The reaction system provided by the present invention reduces the energy consumption, reduces the reaction temperature, improves the utilization rate of the raw materials, and also effectively improves the productivity.

Classes IPC  ?

• C07C 29/149 - Préparation de composés comportant des groupes hydroxyle ou O-métal liés à un atome de carbone ne faisant pas partie d'un cycle aromatique à six chaînons par réduction d'un groupe fonctionnel contenant de l'oxygène de groupes contenant C=O, p. ex. —COOH d'acides carboxyliques ou de leurs dérivés avec de l'hydrogène ou des gaz contenant de l'hydrogène
• C07C 29/80 - SéparationPurificationStabilisationEmploi d'additifs par traitement physique par distillation
• C07C 31/08 - Éthanol
• C07C 67/37 - Préparation d'esters d'acides carboxyliques par réaction avec du monoxyde de carbone ou des formiates obtenus par réaction d'éthers avec l'oxyde de carbone
• C07C 69/14 - Esters d'acide acétique de composés monohydroxylés
• C07C 41/09 - Préparation d'éthers par déshydratation de composés contenant des groupes hydroxyle
• C07C 41/42 - SéparationPurificationStabilisationEmploi d'additifs par changement de l'état physique, p. ex. par cristallisation par distillation
• C07C 43/04 - Éthers saturés

Abrégé

The present invention relates to a reaction system and method for coal-to-ethanol. The reaction system comprises a methanol-to-dimethyl ether reaction unit and a dimethyl ether-to-ethanol reaction unit which are connected in sequence, wherein the methanol is prepared from the gasification of coal. The methanol-to-dimethyl ether reaction unit includes a dimethyl ether reactor. Methanol is introduced into the dimethyl ether reactor for a vapor-phase catalytic dehydration reaction. The dimethyl ether-to-ethanol reaction unit includes a carbonylation reactor, and the outer side of the carbonylation reactor is provided with a first micro-interface generator. In the first micro-interface generator, dimethyl ether separated from the rectification tower by rectification is introduced, and at the same time carbon monoxide is introduced, and same is then dispersed and crushed by means of the first micro-interface generator and then enters the carbonylation reactor for reaction. The micro-interface reaction system reduces the energy consumption, reduces the reaction temperature, improves the utilization rate of the raw materials, and also effectively improves the productivity.

Classes IPC  ?

• C07C 29/149 - Préparation de composés comportant des groupes hydroxyle ou O-métal liés à un atome de carbone ne faisant pas partie d'un cycle aromatique à six chaînons par réduction d'un groupe fonctionnel contenant de l'oxygène de groupes contenant C=O, p. ex. —COOH d'acides carboxyliques ou de leurs dérivés avec de l'hydrogène ou des gaz contenant de l'hydrogène
• C07C 31/08 - Éthanol
• C07C 29/74 - SéparationPurificationStabilisationEmploi d'additifs
• B01J 19/00 - Procédés chimiques, physiques ou physico-chimiques en généralAppareils appropriés

Abrégé

A reaction system and method for diesel hydrogenation, the reaction system comprising: a hydrogenation reactor (10), wherein multiple sections of fixed beds (102) are sequentially arranged from top to bottom in the hydrogenation reactor (10), and the fixed beds (102) are internally filled with a catalyst; micro-interface generators (101) are provided between adjacent fixed beds (102), and hydrogen inlets (103) are provided on the micro-interface generators (101); a side wall of the hydrogenation reactor (10) is provided with a product outlet (105), and the product outlet (105) is connected to a hydrorefining reactor (20) for deep hydrogenation reaction; and a reaction product from the bottom part of the hydrorefining reactor (20) is introduced into a gas-liquid separation tank (70) so as to separate a gaseous phase containing hydrogen sulfide and hydrogen from the product to obtain a final product of desulfurized diesel. Once the reaction system is combined with the micro-interface generators (101), energy consumption is reduced, the reaction temperature is reduced, the reaction yield is improved, and the utilization rate of raw materials, especially the utilization rate of hydrogen, is improved while effectively improving the production capacity.

Classes IPC  ?

• B01J 8/04 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés avec des particules immobiles, p. ex. dans des lits fixes le fluide passant successivement à travers plusieurs lits
• C10G 45/02 - Raffinage des huiles d'hydrocarbures au moyen d'hydrogène ou de composés donneurs d'hydrogène pour éliminer des hétéro-atomes sans modifier le squelette de l'hydrocarbure mis en œuvre et sans craquage en hydrocarbures à point d'ébullition inférieurHydrofinissage

Abrégé

The present invention provides a micro-interface reaction system and method for hydrogenation of an anthracene oil. The micro-interface reaction system comprises: a micro-interface generator and a hydrogenation reactor connected in sequence. A hydrogen gas and an anthracene oil are injected into the micro-interface generator. A side wall of the hydrogenation reactor is provided with a hydrogenation product outlet, and a product from the hydrogenation product outlet is injected into a first separation tank to separate a hot high-fraction gas and a hot high-fraction oil, and the hot high-fraction gas is sent to a second separation tank to be separated into a cold high-fraction gas and a cold high-fraction oil. After the hot high-fraction oil enters a cracking reaction tower to undergo a cracking reaction, the resulting cracked reaction products are sent to a fractionation tower to be subjected to fractionation, and the cold high-fraction gas and cold high-fraction oil are collected and discharged separately. The micro-interface reaction system provided by the present invention is combined with the micro-interface generator, and thus reduces energy consumption, lowers the reaction temperature, increases the reaction yield, and improves the utilization rate of raw materials, especially the utilization rate of the hydrogen gas, and effectively increases the production capacity.

Classes IPC  ?

• C10G 65/12 - Traitement des huiles d'hydrocarbures, uniquement par plusieurs procédés d'hydrotraitement uniquement par plusieurs étapes en série comprenant des étapes de craquage et d'autres étapes d'hydrotraitement
• B01J 8/00 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés

Abrégé

An enhanced reaction system and method for preparing polypropylene by means of a slurry process. The enhanced reaction system comprises: a prepolymerization reactor (10) and a polymerization reactor (20), which are connected in order. The prepolymerization reactor (10) is provided with a prepolymerization micro-interface generator (101) used for dispersing and crushing a material into micro-bubbles, and the polymerization reactor (20) is provided with a micro-interface generator set. A polymerization reaction product outlet (2020) is provided at the bottom of the polymerization reactor (20), and the polymerization reaction product outlet (2020) is connected to a flash tank (40) for flash evaporation of the polymerization reaction product. A first gas phase outlet (4010) is provided at the top of the flash tank (40), and a material discharged from the first gas phase outlet (4010) is introduced into a pre-washing tower (50) for washing and impurity removal. By means of the arrangement of the prepolymerization micro-interface generator (101) on the prepolymerization reactor (10), and also by means of the arrangement of the micro-interface generator set on the polymerization reactor (20), the mass transfer area between a gas phase material and a liquid phase material is increased, the reaction efficiency is improved, and the energy consumption is reduced; in addition, the temperature and pressure inside the polymerization reactor (20) are reduced, and the safety and stability of the whole system are improved.

Classes IPC  ?

• C08F 10/06 - Propène
• C08F 2/01 - Procédés de polymérisation caractérisés par des éléments particuliers des appareils de polymérisation utilisés
• B01F 3/04 - Mélange, p.ex. dispersion, émulsion, selon les phases à mélanger de gaz ou de vapeurs avec des liquides

Abrégé

Disclosed are a micro-interface strengthening reaction system and method for preparing poly-α-olefin. The system comprises a first polymerization reactor (11) and a second polymerization reactor (12), which are sequentially connected, wherein a first micro-interface generator (111) is arranged outside the first polymerization reactor (11), and a second micro-interface generator (121) is arranged in the second polymerization reactor (12); and a discharge port (123) is provided in the bottom of the second polymerization reactor (12), and the discharge port (123) is connected to a hydrogen halide removal tower (2). According to the system, after a micro-interface generator is arranged on a pre-polymerization reactor and a micro-interface generator set is arranged on a polymerization reactor, the mass transfer area between a gas phase material and a liquid phase material is increased, the reaction efficiency is improved, and the energy consumption is reduced; and in addition, gas-liquid phase mixing is more uniform, obtained poly-α-olefin has a higher uniformity, and the product quality is improved.

Classes IPC  ?

• C08F 10/02 - Éthylène

Abrégé

Disclosed are a micro-interface strengthened reaction system and a method for preparing polyethylene by means of a solution method. The system comprises: a pre-polymerization reactor (10) and a polymerization reactor (20) connected in sequence, wherein a pre-polymerization micro-interface generator (101) is provided on the pre-polymerization reactor (10), and a micro-interface generating unit is provided on the polymerization reactor (20); and further comprises a desolventizing tower (70), wherein the desolventizing tower (70) is used to remove solvents and impurities from the polyethylene product, a polyethylene inlet (7010) is provided in the middle of the desolventizing tower (70), the polyethylene inlet (7010) is connected to the bottom outlet of a flash tank (4020), and a nitrogen micro-interface generator (701) is provided inside the desolventizing tower (70) for dispersing and crushing high-temperature nitrogen into microbubbles. By providing both a pre-polymerization micro-interface generator (101) on the pre-polymerization reactor (10) and a micro-interface generating unit on the polymerization reactor (20), the mass transfer area between the gas phase and the liquid phase material is increased, the reaction efficiency is improved, and the energy consumption is reduced, and also, the mixing of the gas-liquid phase is more homogeneous, the homogeneity of the resulting polyethylene is higher, and the product quality is improved.

Classes IPC  ?

• C08F 10/02 - Éthylène
• C08F 2/01 - Procédés de polymérisation caractérisés par des éléments particuliers des appareils de polymérisation utilisés
• C08F 2/06 - Solvant organique
• B01F 3/04 - Mélange, p.ex. dispersion, émulsion, selon les phases à mélanger de gaz ou de vapeurs avec des liquides

Abrégé

An external micro-interface papermaking wastewater treatrnent system and a wastewater treatment rnethod are proposed. The wastewater treatment system includes a grating water collection tank, a first coagulation sedimentation tank, an inclined screen and a second coagulation sedimentation tank which are connected in sequence, a heat exchanger, a preheater and a wet oxidation reactor, wherein the heat exchanger is provided with a first inlet, a first outlet, a second inlet and a second outlet. A feed inlet is disposed on a side wall of the wet oxidation reactor, an oxidation water outlet is disposed on a top of the wet oxidation reactor, the feed inlet is connected with a micro-interface generator for dispersing and breaking gas into gas bubbles, a liquid phase inlet and a gas phase inlet are disposed on the micro-interface generator, and the gas phase inlet is connected with an air cornpressor.

Classes IPC  ?

• C02F 9/00 - Traitement en plusieurs étapes de l'eau, des eaux résiduaires ou des eaux d'égout
• C02F 1/52 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par floculation ou précipitation d'impuretés en suspension
• C02F 1/72 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par oxydation
• C02F 1/74 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par oxydation au moyen de l'air

Abrégé

The present invention relates to a micro-interface strengthening reaction system and method for heavy oil hydrogenation preparation of ship fuel, including a liquid phase feed unit, a gas phase feed unit, a micro-interface generator, a fixed-bed reactor and a separation tank. The present invention may reduce the pressure during the reaction by 10-80% while ensuring the efficiency of the reaction by breaking the gas to form micro-sized micro-bubbles and making the micro-bubbles mix with heavy oil to form an emulsion to increase the area between the gas and the liquid phase and to achieve the effect of enhancing mass transfer in a lower preset range. And, the present invention greatly enhances the mass transfer, so that the gas-liquid ratio can be greatly reduced. Also, the method of the present invention has low process severity, high production safety, low product cost per ton, and strong market competitiveness.

Classes IPC  ?

• C10G 49/00 - Traitement des huiles d'hydrocarbures, en présence d'hydrogène ou de composés donneurs d'hydrogène, non prévu dans un seul des groupes , , , ou
• B01J 10/00 - Procédés chimiques généraux faisant réagir un liquide avec des milieux gazeux autrement qu'en présence de particules solidesAppareillage spécialement adapté à cet effet
• C10G 49/26 - Commande ou régulation

Abrégé

The present invention provides a benzene selective hydrogenation reaction system and a method. The system comprises a benzene refiner, a first hydrogenation reactor, a second hydrogenation reactor, and a separator which are connected in sequence; the first hydrogenation reactor is provided with a first inlet and a first outlet, and the second hydrogenation reactor is provided with a second inlet and a second outlet; the first inlet is connected to a discharge hole of the benzene refiner; the first outlet is connected to the second inlet; the second outlet is connected to the separator; a catalyst outlet is connected to the first hydrogenation reactor to achieve recycling; a micro-interface unit is arranged inside each of the first hydrogenation reactor and the second hydrogenation reactor, and is used for dispersing and crushing hydrogen to form micro-bubbles having micron-sized diameters. According to the benzene selective hydrogenation reaction system of the present invention, after the micro-interface units are arranged inside the reactors, the mass transfer area between hydrogen and a liquid-phase material is increased, the reaction temperature and pressure are reduced, the yield of cyclohexene is increased, and the safety of the system is improved.

Classes IPC  ?

• B01J 19/24 - Réacteurs fixes sans élément interne mobile
• C07C 5/11 - Hydrogénation partielle
• C07C 13/20 - Hydrocarbures monocycliques ou leurs dérivés hydrocarbonés acycliques à cycle hexagonal à cycle du cyclohexène

Abrégé

An enhanced reaction system and method for preparing cyclohexanone by selective hydrogenation of benzene. The system comprises a hydrogenation reactor (10); the hydrogenation reactor (10) is provided with a discharge port (11), and the discharge port (11) is connected to a catalyst separator (20) for separating a catalyst in a reaction product; the bottom of a gas-liquid separator (80) is provided with an alcohol ketone liquid outlet (81), and the alcohol ketone liquid outlet (81) is connected to a cyclohexanone rectifying tower (90) for separating cyclohexanone; the side wall of the hydrogenation reactor (10) is provided with a first raw material inlet (12), and the first raw material inlet (12) is provided with a first micro-interface generator (101) for dispersing and crushing gas into bubbles; the side wall of an addition reactor (40) is provided with a second raw material inlet (41), and the second raw material inlet (41) is provided with a second micro-interface generator (401) for dispersing and crushing gas into bubbles. After the micro-interface generators are provided at the raw material inlets of the hydrogenation reactor (10) and the addition reactor (40), the mass transfer area between hydrogen and a liquid-phase material is increased, and the reaction efficiency is improved; moreover, the reaction temperature and pressure are reduced, and the safety and stability of the whole system are improved.

Classes IPC  ?

• C07C 45/00 - Préparation de composés comportant des groupes C=O liés uniquement à des atomes de carbone ou d'hydrogènePréparation des chélates de ces composés
• C07C 45/82 - SéparationPurificationStabilisationEmploi d'additifs par modification de l'état physique, p. ex. par cristallisation par distillation
• C07C 49/403 - Composés saturés comportant un groupe cétone faisant partie d'un cycle d'un cycle à six chaînons
• C07C 29/149 - Préparation de composés comportant des groupes hydroxyle ou O-métal liés à un atome de carbone ne faisant pas partie d'un cycle aromatique à six chaînons par réduction d'un groupe fonctionnel contenant de l'oxygène de groupes contenant C=O, p. ex. —COOH d'acides carboxyliques ou de leurs dérivés avec de l'hydrogène ou des gaz contenant de l'hydrogène
• C07C 29/80 - SéparationPurificationStabilisationEmploi d'additifs par traitement physique par distillation
• C07C 35/08 - Composés comportant au moins un groupe hydroxyle ou O-métal lié à un atome de carbone d'un cycle autre qu'un cycle aromatique à six chaînons monocycliques contenant des cycles à six chaînons
• C07C 67/04 - Préparation d'esters d'acides carboxyliques par réaction d'acides carboxyliques ou d'anhydrides symétriques sur des liaisons carbone-carbone non saturées
• C07C 69/14 - Esters d'acide acétique de composés monohydroxylés
• C07C 5/11 - Hydrogénation partielle
• C07C 13/20 - Hydrocarbures monocycliques ou leurs dérivés hydrocarbonés acycliques à cycle hexagonal à cycle du cyclohexène
• B01D 3/00 - Distillation ou procédés d'échange apparentés dans lesquels des liquides sont en contact avec des milieux gazeux, p. ex. extraction

Abrégé

Provided is an external micro-interface strengthening system for preparing cyclohexanone by an esterification method, comprising an esterification reactor; a side wall of the esterification reactor is provided with a raw material inlet, the raw material inlet is connected to a micro-interface generator so as to disperse and crush gas into bubbles, and a reactant outlet is connected to an ethanol rectification tower so as to separate ethanol from a reactant; the bottom of the ethanol rectification tower is provided with a heavy component outlet, the heavy component outlet being connected to a cyclohexanol rectification tower so as to separate gas phase cyclohexanol; and the top portion of the cyclohexanol rectification tower is provided with a gas phase outlet, and the gas phase outlet is connected to a dehydrogenation reactor so as to carry out a cyclohexanol dehydrogenation reaction. By connecting the micro-interface generator in the raw material inlet, the external micro-interface strengthening system of the present invention increases the mass transfer surface between hydrogen and cyclohexyl acetate and improves the mass transfer efficiency between gas and liquid phases, thereby improving reaction efficiency and reducing production costs for enterprises; meanwhile, the temperature and pressure of esterification reactions are reduced, and the safety and stability of the system are increased.

Classes IPC  ?

• C07C 45/41 - Préparation de composés comportant des groupes C=O liés uniquement à des atomes de carbone ou d'hydrogènePréparation des chélates de ces composés par hydrogénolyse ou par réduction de groupes carboxyle ou de leurs dérivés fonctionnels
• C07C 49/403 - Composés saturés comportant un groupe cétone faisant partie d'un cycle d'un cycle à six chaînons

Abrégé

The present invention provides a micro-interface enhanced cyclohexanone ammoximation reaction system and method. The system comprises an oximation reactor, a reaction clear liquid buffer tank, a tail gas absorption tower, and a micro-interface generator, wherein the oximation reactor comprises a feed port, a discharge port, and a tail gas outlet; an external circulation heat exchange device is provided outside the oximation reactor; the micro-interface generator is connected to the feed port and used for dispersing and breaking ammonia gas into micro-bubbles having micron-scale diameters; the discharge port is connected to the reaction clear liquid buffer tank; the tail gas outlet is connected to the tail gas absorption tower; the bottom of the tail gas absorption tower is further provided with an absorption liquid outlet; and the absorption liquid outlet is connected to the micro-interface generator, so that absorption liquid can return to the oximation reactor for use. According to the present invention, on one hand, the occurrence of side reactions is effectively inhibited, oximation reaction efficiency is fully improved, and the production costs of enterprises are reduced; on the other hand, reaction temperature and reaction pressure are reduced, the decomposition products of cyclohexanone and cyclohexanone oxime are reduced, and the yield and quality of the final product caprolactam are improved.

Classes IPC  ?

• B01J 8/10 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés avec des particules mobiles mues par des agitateurs ou par des tambours rotatifs ou par des récipients tournants
• B01J 19/18 - Réacteurs fixes avec éléments internes mobiles
• B01J 4/02 - Dispositifs d'alimentationDispositifs de commande d'alimentation ou d'évacuation pour introduire des quantités mesurées de réactifs
• B01F 3/04 - Mélange, p.ex. dispersion, émulsion, selon les phases à mélanger de gaz ou de vapeurs avec des liquides
• C07C 249/04 - Préparation de composés contenant des atomes d'azote, liés par des liaisons doubles à un squelette carboné d'oximes

Abrégé

The present invention provides a reaction system and method for ammoximation and tert-butyl alcohol recovery. The reaction system comprises an oximation reactor, a reaction clear liquid buffer tank, a tail gas absorption tower, a tert-butyl alcohol recovery tower, and a tert-butyl alcohol reflux tank. A tail gas outlet is formed at the top of the oximation reactor; a discharge port is formed at the bottom of the oximation reactor; the discharge port is connected to the reaction clear liquid buffer tank; the tail gas outlet is connected to the tail gas absorption tower; a material from the reaction clear liquid buffer tank is introduced from the middle section of the tert-butyl alcohol recovery tower; the top of the tert-butyl alcohol recovery tower is connected to the tert-butyl alcohol reflux tank; and an external circulation heat exchange apparatus is provided outside the oximation reactor, and a micro-interface generator is provided inside for dispersing and breaking a gas. According to the reaction system for ammoximation and tert-butyl alcohol recovery in the present invention, after providing the micro-interface generator inside the reactor, the mass transfer area of a gas-liquid phase is increased, and the reaction temperature and pressure are reduced, thereby suppressing the occurrence of side reactions and improving the efficiency of the oximation reaction.

Classes IPC  ?

• C07C 249/04 - Préparation de composés contenant des atomes d'azote, liés par des liaisons doubles à un squelette carboné d'oximes
• C07C 251/44 - Oximes avec des atomes d'oxygène de groupes oxyimino liés à des atomes d'hydrogène ou à des atomes de carbone de radicaux hydrocarbonés non substitués avec l'atome de carbone d'au moins un des groupes oxyimino faisant partie d'un cycle autre qu'un cycle aromatique à six chaînons
• C07C 31/12 - Alcools monohydroxyliques acycliques contenant quatre atomes de carbone
• C07C 29/74 - SéparationPurificationStabilisationEmploi d'additifs
• B01J 19/00 - Procédés chimiques, physiques ou physico-chimiques en généralAppareils appropriés

Abrégé

The present invention provides a built-in micro-interface ammoximation reaction system and method, the system comprising an oximation reactor, a reaction supernatant buffer tank, a tert-butanol recovery tower, an extraction tank, a water washing separator, and a water extraction tower, wherein an external circulation device is provided outside the oximation reactor; a micro-interface unit is provided inside the oximation reactor; an oxime aqueous solution outlet is provided at the bottom of the tert-butanol recovery tower; the extraction tank is provided with a liquid inlet, a light phase outlet, and a water phase outlet; the liquid inlet is connected to the oxime aqueous solution outlet; the light phase outlet is connected to the water washing separator for washing a toluene oxime solution; and the water phase outlet is connected to the water extraction tower for extracting and recovering the oxime in the water phase. In the built-in micro-interface ammoximation reaction system of the present invention, the provision of the micro-interface unit inside the reactor increases the mass transfer area between ammonia gas and a liquid phase material and lowers the reaction temperature and pressure, thereby inhibiting the occurrence of side reactions and increasing oximation reaction efficiency.

Classes IPC  ?

• C07C 249/04 - Préparation de composés contenant des atomes d'azote, liés par des liaisons doubles à un squelette carboné d'oximes
• C07C 251/44 - Oximes avec des atomes d'oxygène de groupes oxyimino liés à des atomes d'hydrogène ou à des atomes de carbone de radicaux hydrocarbonés non substitués avec l'atome de carbone d'au moins un des groupes oxyimino faisant partie d'un cycle autre qu'un cycle aromatique à six chaînons
• C07D 201/06 - Préparation des lactames à partir d'oximes ou en passant par des oximes, par un réarrangement de Beckmann à partir de cétones avec formation d'oxime et réarrangement simultanés
• C07D 223/10 - Atomes d'oxygène liés en position 2
• C07D 201/16 - Séparation ou purification
• B01J 19/00 - Procédés chimiques, physiques ou physico-chimiques en généralAppareils appropriés

Abrégé

The present invention provides an external micro-interface ammoximation reaction system and method. The external micro-interface ammoximation reaction system comprises an oximation reactor, a reaction clear liquid buffer tank, a tert-butanol recovery tower, an extraction tank, a water washing separator, a toluene oxime storage tank, a first rectifying tower, a second rectifying tower and a rearrangement reaction device, wherein a feeding hole is provided in a side wall of the oximation reactor and is connected to a micro-interface generator for dispersing and breaking gas into bubbles; a first inlet is provided in the middle of a side wall of the first rectifying tower, a first outlet is provided in the bottom of the first rectifying tower, a second inlet is provided in the upper portion of a side wall of the second rectifying tower, and a second outlet is provided in the bottom of the second rectifying tower; and the first inlet is connected to the top of the toluene oxime storage tank for leaving toluene oxime to stand and cool first before rectifying same, and the second outlet is connected to the rearrangement reaction device for carrying out a rearrangement reaction. According to the present invention, the micro-interface generator is arranged before the oximation reactor, such that the mass transfer area between ammonia gas and a liquid phase is increased, and the temperature and the pressure of an oximation reaction are reduced, thereby effectively reducing the energy consumption and improving the reaction efficiency.

Classes IPC  ?

• C07C 249/04 - Préparation de composés contenant des atomes d'azote, liés par des liaisons doubles à un squelette carboné d'oximes
• C07C 249/14 - SéparationPurificationStabilisationEmploi d'additifs
• C07C 251/44 - Oximes avec des atomes d'oxygène de groupes oxyimino liés à des atomes d'hydrogène ou à des atomes de carbone de radicaux hydrocarbonés non substitués avec l'atome de carbone d'au moins un des groupes oxyimino faisant partie d'un cycle autre qu'un cycle aromatique à six chaînons
• C07D 201/04 - Préparation des lactames à partir d'oximes ou en passant par des oximes, par un réarrangement de Beckmann
• C07D 223/10 - Atomes d'oxygène liés en position 2

Abrégé

A built-in micro-interface oxidation system for preparing terephthalic acid from p-xylene. The oxidation system comprises: a first reactor (10), a rectifying tower (20) and a second reactor (30), which are sequentially connected, wherein a first outlet (11) is provided in a side wall of the first reactor (10), a first inlet (31) is provided in a side wall of the second reactor (30), a material inlet (21) is provided in a side wall of the rectifying tower (20), a material outlet (22) is provided at the bottom of the rectifying tower (20), the first outlet (11) is connected to the material inlet (21) of the rectifying tower (20), the first inlet (31) is connected to the material outlet (22) of the rectifying tower (20), the first reactor (10) and the second reactor (30) are each internally provided with a micro-interface unit (40), and the micro-interface units (40) are used for dispersing and breaking air into bubbles. In the built-in micro-interface oxidation system, the micro-interface units (40) are arranged inside the reactors, and a process with multiple sections is used, thereby solving the problems of high energy consumption, a large amount of raw material consumption and a low reaction efficiency in a traditional process, and achieving the effect of saving the cost for enterprises.

Classes IPC  ?

• B01D 3/00 - Distillation ou procédés d'échange apparentés dans lesquels des liquides sont en contact avec des milieux gazeux, p. ex. extraction
• B01J 19/24 - Réacteurs fixes sans élément interne mobile
• C07C 51/265 - Préparation d'acides carboxyliques, de leurs sels, halogénures ou anhydrides par oxydation avec l'oxygène moléculaire de composés contenant des cycles aromatiques à six chaînons sans ouverture du cycle comportant des chaînes latérales alkylées qui sont oxydées en groupes carboxyle
• C07C 63/06 - Acide benzoïque

Abrégé

An external micro-interface oxidation system for preparing terephthalic acid from p-xylene. The oxidation system comprises: a first reactor, a rectifying tower, and a second reactor which are sequentially connected. A first outlet is formed on the side wall of the first reactor, a first inlet is formed on the side wall of the second reactor, a material inlet is formed on the side wall of the rectifying tower, and a material outlet is formed on the bottom of the rectifying tower. The first outlet is connected to the material inlet of the rectifying tower, and the first inlet is connected to the material outlet of the rectifying tower. A first micro-interface generator is provided outside the first reactor, and a second micro-interface generator is provided outside the second reactor; the side wall of the first micro-interface generator is connected to a first air inlet, and the bottom is connected to a raw material inlet; the bottom of the second micro-interface generator is connected to a second air inlet. The micro-interface generator is placed outside the reactor and a sectional process is used, so that the problem of low reaction efficiency in conventional processes is solved, and the costs are saved for enterprises.

Classes IPC  ?

• B01J 8/08 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés avec des particules mobiles
• B01J 10/00 - Procédés chimiques généraux faisant réagir un liquide avec des milieux gazeux autrement qu'en présence de particules solidesAppareillage spécialement adapté à cet effet
• B01D 3/00 - Distillation ou procédés d'échange apparentés dans lesquels des liquides sont en contact avec des milieux gazeux, p. ex. extraction

Abrégé

An external micro-interface unit enhanced reaction system and process for production of PTA from PX. The system comprises a reactor, a first micro-interface generator (17), and a second micro-interface generator (18); the reactor comprises a housing (10), a feed port (22), a first baffle plate (13), a second baffle plate (14), and a circulating heat exchange device partially disposed outside the housing (10); a first reaction zone (11) is formed between the inner wall of one side of the housing (10) and the first baffle plate (13), a first overflow zone (15) is formed between the first baffle plate (13) and the second baffle plate (14), and the first overflow zone (15) is communicated with the first reaction zone (11); a second overflow zone (16) is formed between the second baffle plate (14) and the inner wall of the other side of the housing (10), and a second reaction zone (12) is formed at the bottom of the reactor; the first micro-interface generator (17) is separately connected to the feed port (22) and the circulating heat exchange device, the second micro-interface generator (18) is disposed at the bottom of the second reaction zone (12), and both the first micro-interface generator (17) and the second micro-interface generator (18) are used for breaking raw material air into micro-bubbles.

Classes IPC  ?

• C07C 51/265 - Préparation d'acides carboxyliques, de leurs sels, halogénures ou anhydrides par oxydation avec l'oxygène moléculaire de composés contenant des cycles aromatiques à six chaînons sans ouverture du cycle comportant des chaînes latérales alkylées qui sont oxydées en groupes carboxyle
• C07C 63/26 - Acide benzènedicarboxylique-1, 4
• B01J 19/24 - Réacteurs fixes sans élément interne mobile

Abrégé

The present invention provides a reaction enhancement system and process for producing PTA by PX having a built-in micro-interface unit. Said system comprises: a reactor and a micro-interface unit provided within the reactor; the reactor comprises a housing, an inner cylinder concentrically provided inside the housing, and a circulating heat exchange device partially provided outside the housing; a bottom end of the inner cylinder is connected to an inner bottom surface of the housing in a closed manner, and the top end of the inner cylinder is open; the region between the housing and the inner cylinder is a first reaction region, the interior of the inner cylinder is sequentially divided into a second reaction region and a third reaction region from top to bottom, and the circulating heat exchange device is connected to the inner cylinder and the micro-interface unit respectively. The present invention effectively solves the problems of excessive waste of a reactive solvent of acetic acid at a high temperature and a high pressure in an existing process for producing PTA by PX, and the product TA being unable to be taken out in time, and greatly reduces energy consumption, saves a solvent of acetic acid, and increases the reaction efficiency.

Classes IPC  ?

• C07C 51/215 - Préparation d'acides carboxyliques, de leurs sels, halogénures ou anhydrides par oxydation avec l'oxygène moléculaire de groupes hydrocarbyle saturés
• C07C 63/26 - Acide benzènedicarboxylique-1, 4
• B01J 10/00 - Procédés chimiques généraux faisant réagir un liquide avec des milieux gazeux autrement qu'en présence de particules solidesAppareillage spécialement adapté à cet effet
• B01J 19/24 - Réacteurs fixes sans élément interne mobile
• B01J 8/08 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés avec des particules mobiles

Abrégé

An oxidation enhancement system for producing PTA by PX having an external micro-interface unit, comprising: a reactor, a circulating heat exchange device and a micro-interface unit; the reactor comprises a housing (10) and an inner cylinder (11) concentrically provided inside the housing (10); the circulating heat exchange device is provided outside the reactor and is connected to the housing (10) and the inner cylinder (11) respectively for regulating the reaction temperatures, during reaction, of a first reaction region (12), a second reaction region (13) and a third reaction region (14) which are provided inside the reactor; and the micro-interface unit is connected between the reactor and the circulating heat exchange device, and is connected to an external feeding pipeline of the reactor.

Classes IPC  ?

• B01J 19/24 - Réacteurs fixes sans élément interne mobile
• B01J 10/00 - Procédés chimiques généraux faisant réagir un liquide avec des milieux gazeux autrement qu'en présence de particules solidesAppareillage spécialement adapté à cet effet
• C07C 51/235 - Préparation d'acides carboxyliques, de leurs sels, halogénures ou anhydrides par oxydation avec l'oxygène moléculaire de groupes contenant de l'oxygène en groupes carboxyle de groupes —CHO ou de groupes alcool primaire
• C07C 63/26 - Acide benzènedicarboxylique-1, 4

Abrégé

The present invention provides a built-in micro interface papermaking wastewater treatment system and a treatment method. The treatment system comprises a papermaking wastewater tank, a grille decontamination machine, an adjustment tank, a centrifugal filter, a sedimentation tank, a heat exchanger, a preheater, a wet oxidation reactor, a gas-liquid separator, and a biodegradation tank which are connected in sequence. The wet oxidation reactor is provided therein with a micro interface unit used for dispersing and breaking gas into bubbles. The micro interface unit comprises a pneumatic micro interface generator. An air inlet is provided on the side wall of the wet oxidation reactor, and extends to the interior of the pneumatic micro interface generator by means of a pipeline. According to the treatment system of the present invention, by providing a micro interface unit inside a wet oxidation reactor, the temperature and pressure of the papermaking wastewater treatment system are decreased, the consumption of air or oxygen is reduced, and the effects of low energy consumption and high treatment efficiency are achieved.

Classes IPC  ?

• C02F 9/14 - Traitement en plusieurs étapes de l'eau, des eaux résiduaires ou des eaux d'égout une étape au moins étant un traitement biologique
• C02F 1/72 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par oxydation
• C02F 1/74 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par oxydation au moyen de l'air
• C02F 103/28 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant du traitement de plantes ou de parties de celles-ci provenant de l'industrie du papier ou de la cellulose
• C02F 101/30 - Composés organiques

Abrégé

Provided are an external micro-interface papermaking sewage treatment system and a treatment method. The treatment system comprises a grid water collecting tank, a first coagulating sedimentation tank, an inclined screen, a second coagulating sedimentation tank, a heat exchanger, a preheater and a wet oxidation reactor, which are sequentially connected, wherein a first inlet, a first outlet, a second inlet and a second outlet are provided on the heat exchanger; and a feed port is provided on a side wall of the wet oxidation reactor, an oxidized water outlet is provided at the top of the wet oxidation reactor, the feed port is connected to a micro-interface generator for dispersing and crushing gas to form bubbles, a liquid phase inlet and a gas phase inlet are provided on the micro-interface generator, and the gas phase inlet is connected to an air compressor. According to the treatment system of the present invention, the micro-interface generator is arranged in front of the wet oxidation reactor, thereby increasing the mass transfer area between air or oxygen and a liquid phase, reducing the temperature and the pressure of the papermaking sewage treatment system, and as such effectively reducing energy consumption and improving the reaction efficiency.

Classes IPC  ?

• C02F 9/14 - Traitement en plusieurs étapes de l'eau, des eaux résiduaires ou des eaux d'égout une étape au moins étant un traitement biologique
• C02F 1/72 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par oxydation
• C02F 1/74 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par oxydation au moyen de l'air
• C02F 103/28 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant du traitement de plantes ou de parties de celles-ci provenant de l'industrie du papier ou de la cellulose
• C02F 101/30 - Composés organiques

Abrégé

The present invention relates to a fixed bed enhanced reaction system and process for preparing isopropanol by means of the hydration of propylene. The system comprises: a reactor, a micro-interface generator, a catalyst fixed bed, etc. In the present invention, propylene gas is crushed by the micro-interface generator to form micron-scale bubbles on a micrometer scale, and the micron-scale bubbles are mixed with a liquid reactant, i.e. deionized water, to form a gas-liquid emulsion, so as to increase the area of the phase interface between two phases, i.e. the gas and liquid phases, and achieve the effect of enhancing the mass transfer within a lower preset operation condition range; in addition, the micron-scale bubbles can be sufficiently mixed with deionized water to form a gas-liquid emulsion. By sufficiently mixing the gas and liquid phases, it can be ensured that the deionized water can be brought into sufficient contact with the propylene in the system, while also ensuring sufficient contact with the catalyst, thereby efficiently increasing the single pass conversion of propylene.

Classes IPC  ?

• B01J 8/04 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés avec des particules immobiles, p. ex. dans des lits fixes le fluide passant successivement à travers plusieurs lits

Abrégé

The present invention relates to an immersed micro-interface enhanced reaction system and process for propylene hydration, the system comprising a reactor, a first micro-interface generator, a second micro-interface generator and so on. According to the present invention, propylene is crushed by the micro-interface generators to form micron-scale bubbles, and the micron-scale bubbles are mixed with deionized water serving as a reactant so as to form a gas-liquid emulsion so that the phase interface area of a gas phase and a liquid phase is increased, and the effect of enhancing mass transfer within a low preset operation condition range is achieved. Meanwhile, micron-scale bubbles can be fully mixed with the deionized water to form the gas-liquid emulsion, and the gas phase and the liquid phase are fully mixed, which can ensure that the deionized water and the propylene in the system can be in full contact with each other; meanwhile, the deionized water and the propylene are in full contact with a catalyst, thereby effectively improving the efficiency of preparing isopropanol.

Classes IPC  ?

• B01J 8/02 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés avec des particules immobiles, p. ex. dans des lits fixes
• C07C 31/10 - Alcools monohydroxyliques acycliques contenant trois atomes de carbone
• C07C 29/04 - Préparation de composés comportant des groupes hydroxyle ou O-métal liés à un atome de carbone ne faisant pas partie d'un cycle aromatique à six chaînons par addition de groupes hydroxyle à des liaisons carbone-carbone non saturées, p. ex. à l'aide de H2O2 par hydratation de liaisons doubles carbone-carbone
• C07C 29/80 - SéparationPurificationStabilisationEmploi d'additifs par traitement physique par distillation
• C10J 3/72 - Autres caractéristiques
• C10J 3/46 - Gazéification des combustibles granuleux ou pulvérulents en suspension
• C10J 3/48 - AppareillageInstallations
• C10G 2/00 - Production de mélanges liquides d'hydrocarbures de composition non définie à partir d'oxydes de carbone
• B01D 5/00 - Condensation de vapeursRécupération de solvants volatils par condensation
• B01J 8/22 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés les particules étant fluidisées l'agent fluidisant étant un liquide du gaz étant introduit dans le liquide

Abrégé

The present invention relates to an enhanced reaction system and process for propylene hydration catalyzed by an ionic liquid. The system comprises: a reactor, a micro-interface generator, a pre-heating device, etc. In the present invention, propylene gas is crushed to form micron-scale bubbles on a micrometer scale, with the micron-scale bubbles having physicochemical properties that conventional bubbles do not have. It can be seen from the calculation formulae of the sphere volume and the surface area that where the total volume is constant, the total surface area of a bubble is inversely proportional to the diameter of the single bubble. It can be seen therefrom that the total surface area of the micron-scale bubbles is huge, such that the micron-scale bubbles are mixed with the ionic liquid catalyst to form a gas-liquid emulsion, so as to increase the contact area between the two phases, i.e. the gas and liquid phases, and achieve the effect of enhancing the mass transfer within a lower preset operation condition range. In addition, the rate of conversion into propylene is further increased to a certain degree.

Classes IPC  ?

• C07C 29/04 - Préparation de composés comportant des groupes hydroxyle ou O-métal liés à un atome de carbone ne faisant pas partie d'un cycle aromatique à six chaînons par addition de groupes hydroxyle à des liaisons carbone-carbone non saturées, p. ex. à l'aide de H2O2 par hydratation de liaisons doubles carbone-carbone
• C07C 31/10 - Alcools monohydroxyliques acycliques contenant trois atomes de carbone

Abrégé

A built-in micro-interface papermaking wastewater treatment system and a treatment method are provided in the present invention. The treatment system includes a papermaking wastewater tank, a grid cleaner, an adjustment tank, a centrifugal filter and a sedimentation tank which are connected in sequence, and further includes a heat exchanger, a preheater, a wet oxidation reactor, a gas-liquid separator and a biodegradation tank. A micro-interface unit for dispersing and crushing gas into gas bubbles is disposed inside the wet oxidation reactor. The micro-interface unit includes a pneumatic micro-interface generator, a gas inlet is disposed at a side wall of the wet oxidation reactor, and the gas inlet extends to an interior of the pneumatic micro-interface generator through a pipeline. By arranging the micro-interface unit inside the wet oxidation reactor of the treatment system, the consumption of air or oxygen can be reduced, which realizes low energy consumption and high treatment efficiency.

Classes IPC  ?

• C02F 9/00 - Traitement en plusieurs étapes de l'eau, des eaux résiduaires ou des eaux d'égout
• C02F 1/38 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par séparation centrifuge
• C02F 1/72 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par oxydation
• C02F 3/00 - Traitement biologique de l'eau, des eaux résiduaires ou des eaux d'égout
• D21C 11/00 - Régénération des liqueurs noires

Abrégé

Provided are a high-concentration cymoxanil wastewater treatment system and a high-concentration cymoxanil wastewater treatment method that uses said system, the system comprising: a cymoxanil wastewater oxidation device, a micro-interface generator, and an evaporation unit, and so on. Oxygen is broken by means of the micro-interface generator such that same forms microscale micro-sized bubbles, the micro-sized bubbles having physical and chemical properties that conventional bubbles do not have; it may be known from a calculation formula for the volume and surface area of a sphere that when the total volume remains unchanged, the total surface area of the bubbles is inversely proportional to the diameter of a single bubble. Hence, the total surface area of the micro-sized bubbles is huge. The micro-sized bubbles are mixed with cymoxanil wastewater to form a gas-liquid mixture, so as to increase the contact surface area of the gas and liquid phases to achieve full oxidization and decomposition of the cymoxanil wastewater under a relatively low preset condition, and treatment costs of high-concentration cymoxanil wastewater are reduced as a catalyst is not used while the treatment effect of the high-concentration cymoxanil wastewater is optimized.

Classes IPC  ?

• C02F 9/10 - Traitement thermique
• C02F 101/34 - Composés organiques contenant de l'oxygène
• C02F 101/38 - Composés organiques contenant de l'azote

Abrégé

The present invention provides a treatment system and method for industrial alkaline residue wastewater. The treatment system comprises an alkaline residue storage tank, an alkaline residue heat exchanger, an alkaline residue heater, an oxidation reactor, and a washing tower that are successively connected; a material inlet, a material outlet, a heat source inlet, and a heat source outlet are formed on the alkaline residue heat exchanger; a part of oxidized water from the oxidation reactor enters the alkaline residue heat exchanger by means of the heat source inlet, and another part of the oxidized water enters the washing tower to wash alkaline residues; the heat source outlet is connected to an intermediate tank I; the material inlet is connected to the alkaline residue storage tank; the material outlet is connected to the alkaline residue heater; a micro-interface generator is provided at the bottom in the oxidation reactor; the micro-interface generator is used for dispersing broken gas to form gas bubbles; a gas inlet is formed on the bottom wall of the oxidation reactor; and the gas inlet is communicated with the micro-interface generator. The treatment system of the present invention has low operating temperature and low pressure, thereby avoiding the occurrence of potential safety hazards caused by high temperature and high pressure, and achieving the effects of low energy consumption and low operating cost.

Classes IPC  ?

• C02F 1/72 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par oxydation
• C02F 1/74 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par oxydation au moyen de l'air
• C02F 1/02 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par chauffage
• C02F 1/24 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par flottation
• C02F 101/30 - Composés organiques

Abrégé

Provided are a system and method for treating N-(phosphonomethyl)iminodiacetic acid highly saline wastewater. The treatment system comprises: a booster pump, a water inlet-and-outlet heat exchanger, a water inlet heater and an oxidation reactor, which are connected in sequence, wherein a wastewater inlet, a wastewater outlet, an oxidation water inlet and an oxidation water outlet are provided in the water inlet-and-outlet heat exchanger; oxidation water discharged from the oxidation reactor enters the water inlet-and-outlet heat exchanger from the oxidation water inlet, the oxidation water outlet is connected to an intermediate tank, the wastewater inlet is connected to the booster pump, and the wastewater outlet is connected to a wastewater heater; and a micro-interface unit is arranged at the lower part in the oxidation reactor, the micro-interface unit is used for dispersing and breaking gas into bubbles, a side wall of the oxidation reactor is provided with an air inlet, and the air inlet is connected to the micro-interface unit via a pipeline. In the treatment system in the present invention, the micro-interface unit is placed in the oxidation reactor, such that the temperature and pressure of the wastewater treatment system are sufficiently reduced, and the effects of low energy consumption and low operation cost are achieved.

Classes IPC  ?

• C02F 9/10 - Traitement thermique
• C02F 1/72 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par oxydation
• C02F 1/74 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par oxydation au moyen de l'air
• C02F 101/30 - Composés organiques
• C02F 103/36 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de l'industrie chimique non prévue dans les groupes provenant de la fabrication de composés organiques

Abrégé

The present invention provides a system and method for treating ethylene desulfurization wastewater. The treatment system comprises: connecting a caustic wash tower, a wastewater heat exchanger, a wastewater heater, and an oxidation reaction apparatus in sequence, the wastewater heat exchanger being provided with a material inlet, a material outlet, a heat source inlet, and a heat source outlet, and the caustic wash tower being provided with an alkaline solution circulation pipeline; the oxidized water from the oxidation reaction apparatus enters the wastewater heat exchanger from the heat source inlet, the heat source outlet is connected to a finished-product tank, the alkaline solution circulation pipeline is connected to a desulfurization wastewater branch pipe, the desulfurization wastewater branch pipe is connected to the material inlet, and the material outlet is connected to the wastewater heater; micro-interface generators are symmetrically arranged on the two side walls in the oxidation reaction apparatus. In the processing system of the present invention, by means of being provided with the micro-interface generators, the contact of the reaction phase interface is improved, and it is unnecessary to use a catalyst or add less catalyst to obtain good wastewater treatment performance, and the effects of low energy consumption and reduced cost are achieved.

Classes IPC  ?

• C02F 9/10 - Traitement thermique
• C02F 1/72 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par oxydation
• C02F 1/74 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par oxydation au moyen de l'air
• C02F 103/36 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de l'industrie chimique non prévue dans les groupes provenant de la fabrication de composés organiques

Abrégé

The present invention provides a system and a method for treating acrylic acid and ester waste water thereof. The treatment system comprises: a raw water tank, a waste water heat exchanger, a waste water heater, and an oxidation reaction device, the waste water heat exchanger is provided with a material inlet, a material outlet, a heat source inlet, and a heat source outlet; the oxidized water from the oxidation reaction device enters the waste water heat exchanger from the heat source inlet, the heat source outlet is connected with a finished product tank, the material inlet is connected with the raw water tank, the material outlet is connected with the waste water heater; the oxidation reaction device comprises a first-stage oxidation reactor and a second-stage oxidation reactor connected in sequence; the lower part of the first-stage oxidation reactor is provided with a first-stage micro-interface generation system for dispersing the crushed gas into bubbles, the second-stage oxidation reactor is provided with a second-stage micro-interface generation system for dispersing the crushed gas into bubbles. The treatment system of the present invention improves the contact of the reaction phase interface by arranging the micro-interface generation system, and obtains a good waste water treatment effect without using a catalyst.

Classes IPC  ?

• C02F 1/72 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par oxydation
• C02F 1/74 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par oxydation au moyen de l'air
• C02F 9/10 - Traitement thermique
• C02F 101/30 - Composés organiques

Abrégé

A treatment system and method for cephalosporin wastewater. The treatment system comprises: a flocculation precipitation device, an alkali reaction tank (30), a PAC reaction tank (40), a PAM reaction tank (50), a wastewater heat exchanger (60), a wastewater heater (70) and an oxidation reactor (80) which are sequentially connected; the wastewater heat exchanger (60) is provided with a material inlet (61), a material outlet (62), a heat source inlet (63) and a heat source outlet (64); oxidized water coming out from the oxidation reactor (80) enters the wastewater heat exchanger (60) from the heat source inlet (63), a finished product tank (110) is connected to the heat source outlet (64), the finished product tank (110) is connected to a membrane filtration device to achieve concentration treatment of cephalosporin wastewater, the material inlet (61) is connected to the PAM reaction tank (50), and the material outlet (62) is connected to the wastewater heater (70); and a micro-interface generation system (82) for dispersing and breaking gas into bubbles is provided at an outer side of the oxidation reactor (80). By providing the micro-interface generation system (82), the treatment system improves the contact of the reaction phase interface, and can ensure a good wastewater treatment effect under a relatively mild operating condition.

Classes IPC  ?

• C02F 9/04 - Traitement en plusieurs étapes de l'eau, des eaux résiduaires ou des eaux d'égout une étape au moins étant un traitement chimique
• C02F 1/72 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par oxydation

Abrégé

Provided are a synthesis system and method for preparing adiponitrile by means of the amination of adipic acid. The synthesis system comprises an amination reactor and a reaction rectifying column that are connected in sequence; the reaction rectifying column comprises a rectifying section and a deep dehydration reaction section. The amination reactor is provided with a raw material inlet and a reaction liquid outlet, and the raw material inlet comprises an ammonia gas inlet; the amination reactor is internally provided with a micro-interface generating system, and the micro-interface generating system is used for dispersing ammonia gas and/or a reaction liquid. In the synthesis system provided in the present invention, rectifying separation and synthesis reaction are integrated so that a reaction route is optimized and the efficiency of reaction and separation is improved, thereby improving product quality and yield; in addition, device costs and the floor area of a device are also reduced.

Classes IPC  ?

• B01D 3/00 - Distillation ou procédés d'échange apparentés dans lesquels des liquides sont en contact avec des milieux gazeux, p. ex. extraction
• B01J 19/24 - Réacteurs fixes sans élément interne mobile
• C07C 253/20 - Préparation de nitriles d'acides carboxyliques par déshydratation d'amides d'acides carboxyliques
• C07C 255/04 - Nitriles d'acides carboxyliques ayant des groupes cyano liés à des atomes de carbone acycliques d'un squelette carboné acyclique et saturé contenant deux groupes cyano liés au squelette carboné
• C07C 231/02 - Préparation d'amides d'acides carboxyliques à partir d'acides carboxyliques ou à partir de leurs esters, anhydrides ou halogénures par réaction avec de l'ammoniac ou des amines
• C07C 233/05 - Amides d'acides carboxyliques ayant des atomes de carbone de groupes carboxamide liés à des atomes d'hydrogène ou à des atomes de carbone acycliques ayant les atomes d'azote des groupes carboxamide liés à des atomes d'hydrogène ou à des atomes de carbone de radicaux hydrocarbonés non substitués avec des atomes de carbone de groupes carboxamide liés à des atomes de carbone d'un squelette carboné saturé acyclique ayant les atomes d'azote des groupes carboxamide liés à des atomes d'hydrogène ou à des atomes de carbone acycliques

Abrégé

The present invention provides a reaction system and a method for preparing an adiponitrile by means of the ammoniation of adipic acid. The reaction system comprises: an ammoniation reactor, a gas-liquid separation tank and a rectifying tower that are connected sequentially, wherein the ammoniation reactor is provided with a raw material inlet and an reaction feed liquid outlet; the raw material inlet comprises an ammonia gas inlet; the reaction feed liquid outlet is connected with the side wall of the gas-liquid separation tank; and the top of the gas-liquid separation tank is in communication with the rectifying tower. The reaction system provided by the present invention optimizes the reaction route, improves the reaction separation efficiency, improves the mass transfer effect at the reaction phase interface, and thus improves the quality and yield of a product.

Classes IPC  ?

• C07C 253/22 - Préparation de nitriles d'acides carboxyliques par réaction d'ammoniac avec des acides carboxyliques, avec remplacement de groupes carboxyle par des groupes cyano
• C07C 255/04 - Nitriles d'acides carboxyliques ayant des groupes cyano liés à des atomes de carbone acycliques d'un squelette carboné acyclique et saturé contenant deux groupes cyano liés au squelette carboné
• C07C 253/34 - SéparationPurification

Abrégé

Disclosed are a system and a process for the preparation of ethylbenzene by intensified reaction of benzene and ethylene. The system comprises an alkylation reaction unit, a vapor recovery unit, a precipitation unit, a water washing unit, a rectification unit and a micro-interface generator. The alkylation reaction unit is configured to provide a reaction zone for ethylene and benzene. The vapor recovery unit is configured to condense and recover a gas-phase component outputted from the alkylation reaction unit. The precipitation unit is configured to condense an alkylation liquid-phase component outputted from the alkylation reaction unit. The water washing unit is configured to perform water washing and acid removal, and the rectification unit is configured to separate and refine an upper-layer liquid-phase component outputted from the water washing unit. The micro-interface generator is additionally configured in the present invention to treat ethylene by breaking ethylene into micro-sized bubbles on the order of micrometers, and mix the micro-sized bubbles of ethylene with benzene to form a gas-liquid emulsion, thereby increasing the interfacial area between the gas phase and the liquid phase, improving the reaction efficiency of ethylene with benzene, enhancing the utilization rate of benzene, and reducing the production cost of ethylbenzene.

Classes IPC  ?

• C07C 2/68 - Procédés catalytiques avec des halogénures
• C07C 7/00 - Purification, séparation ou stabilisation d'hydrocarburesEmploi d'additifs
• C07C 7/04 - Purification, séparation ou stabilisation d'hydrocarburesEmploi d'additifs par distillation
• C07C 7/10 - Purification, séparation ou stabilisation d'hydrocarburesEmploi d'additifs par extraction, c.-à-d. purification ou séparation d'hydrocarbures liquides à l'aide de liquides
• C07C 15/073 - Éthylbenzène
• B01J 19/00 - Procédés chimiques, physiques ou physico-chimiques en généralAppareils appropriés

Abrégé

The present invention relates to an enhanced reaction system and a process for preparing an isoaldehyde by means of the carbonylation of an olefin. The system comprises: a reactor, a microinterface generator and a hydrogen purification unit, etc. In the present invention, hydrogen and carbon monoxide are broken down by the microinterface generator to allow same to form micron-sized bubbles at a micron-scale, and the micron-sized bubbles are then mixed with a liquid olefin to form a gas-liquid mixture, such that the phase boundary area of the gas and liquid phases is improved, and the enhancement of the mass transfer effect is achieved within a range of lower preset operating conditions; and at the same time, the micron-sized bubbles can be fully mixed with the liquid olefin to form a gas-liquid mixture by means of the full mixing of the gas and liquid phases, sufficient contact of the liquid olefin with the hydrogen and carbon monoxide in the system can be ensured, and the reaction efficiency of the system is effectively improved, while also improving the conversion rate of the olefin.

Classes IPC  ?

• C07C 45/50 - Préparation de composés comportant des groupes C=O liés uniquement à des atomes de carbone ou d'hydrogènePréparation des chélates de ces composés par réaction avec le monoxyde de carbone par synthèse oxo
• C07C 45/49 - Préparation de composés comportant des groupes C=O liés uniquement à des atomes de carbone ou d'hydrogènePréparation des chélates de ces composés par réaction avec le monoxyde de carbone
• C07C 47/00 - Composés comportant des groupes —CHO

Abrégé

The present invention relates to an intelligent strengthening reaction system and process for preparing isoformaldehyde by using olefin carbonylation, comprising: a reactor, a micro-interface generator, an intelligent control module, and so on. The work of the entire system is controlled by means of the intelligent control module; the reactor and the micro-interface generator cooperating to work together is controlled by means of a PLC controller, such that the quantity of raw material supply and the reactant generation amount are recorded, and a corresponding optimal technical parameter can be found according to the record in order to be reused. The addition of the intelligent control module enables the stability and continuity of the operation of the entire system, effectively improving production efficiency, and production efficiency is stable. Hydrogen and carbon monoxide are crushed by means of the micro-interface generator such that same forms micron-scale micron-level bubbles, so as to increase the contact area between a gas phase and a liquid phase as well as achieve the effect of strengthening mass transfer, effectively improving the conversion rate and efficiency of preparing isoformaldehyde.

Classes IPC  ?

• B01J 8/22 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés les particules étant fluidisées l'agent fluidisant étant un liquide du gaz étant introduit dans le liquide
• B01J 8/08 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés avec des particules mobiles
• B01J 8/00 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés
• B01J 19/00 - Procédés chimiques, physiques ou physico-chimiques en généralAppareils appropriés
• C07C 45/50 - Préparation de composés comportant des groupes C=O liés uniquement à des atomes de carbone ou d'hydrogènePréparation des chélates de ces composés par réaction avec le monoxyde de carbone par synthèse oxo
• C07C 47/02 - Composés saturés comportant des groupes —CHO liés à des atomes de carbone acycliques ou à de l'hydrogène
• C07B 41/06 - Formation ou introduction de groupes fonctionnels contenant de l'oxygène de groupes carbonyle

Abrégé

The present invention provides a synthetic system and method for preparing hexamethylenediamine by adiponitrile hydrogenation. The synthetic system comprises an adiponitrile preparation device, a microinterface intensifier, a hydrogenation reactor and a rectifying column connected sequentially. Hydrogen is introduced into the microinterface intensifier, and the obtained adiponitrile is prepared by the adiponitrile preparation device. The synthetic system optimizes the reaction route, and improves the reaction separation efficiency and the mass transfer effect of reaction phase interface, thereby improving the quality and yield of product.

Classes IPC  ?

• C07C 209/48 - Préparation de composés contenant des groupes amino liés à un squelette carboné par réduction d'acides carboxyliques ou de leurs esters en présence d'ammoniac ou d'amines ou par réduction de nitriles, d'amides d'acides carboxyliques, d'imines ou d'imino-éthers par réduction de nitriles
• C07C 211/12 - Diamino-1,6 hexanes
• C07C 253/20 - Préparation de nitriles d'acides carboxyliques par déshydratation d'amides d'acides carboxyliques
• C07C 255/04 - Nitriles d'acides carboxyliques ayant des groupes cyano liés à des atomes de carbone acycliques d'un squelette carboné acyclique et saturé contenant deux groupes cyano liés au squelette carboné
• C07C 231/02 - Préparation d'amides d'acides carboxyliques à partir d'acides carboxyliques ou à partir de leurs esters, anhydrides ou halogénures par réaction avec de l'ammoniac ou des amines
• C07C 233/05 - Amides d'acides carboxyliques ayant des atomes de carbone de groupes carboxamide liés à des atomes d'hydrogène ou à des atomes de carbone acycliques ayant les atomes d'azote des groupes carboxamide liés à des atomes d'hydrogène ou à des atomes de carbone de radicaux hydrocarbonés non substitués avec des atomes de carbone de groupes carboxamide liés à des atomes de carbone d'un squelette carboné saturé acyclique ayant les atomes d'azote des groupes carboxamide liés à des atomes d'hydrogène ou à des atomes de carbone acycliques

Abrégé

The present invention relates to a micro-interface enhanced cumene-based phenol preparing system and process. The system comprises: a cumene peroxide synthesis unit, a concentration unit, a decomposition unit, a purification unit, and a micro-interface generator. The cumene peroxide synthesis unit is used for providing a reaction place for oxygen and cumene; the concentration unit is used for providing a place for separating and concentrating an output component of the cumene peroxide synthesis unit; the decomposition unit is used for providing a reaction place for an output component of the concentration unit and an acidic component; the purification unit is used for separating and refining an output component by the decomposition unit. Oxygen is treated by additionally arranging a micro-interface generator and is crushed to form micron-sized bubbles in a micrometer scale, and the micron-sized oxygen bubbles are mixed with cumene to form a gas-liquid emulsion, so that the phase boundary area of the gas phase and the liquid phase is increased, and the reaction efficiency of the oxygen and the cumene is improved; the utilization rate of cumene is improved, and the production costs of phenol are reduced.

Classes IPC  ?

• C07C 39/04 - Phénol
• C07C 37/08 - Préparation de composés comportant des groupes hydroxyle ou O-métal liés à un atome de carbone d'un cycle aromatique à six chaînons par décomposition d'hydroperoxydes, p. ex. de l'hydroperoxyde du cumène
• C07C 407/00 - Préparation de composés peroxy
• C07C 409/10 - Hydroperoxyde de cumène

Abrégé

An aerobic fermentation system and process. The system comprises a fermentation tank used for using a specified strain to ferment a material; a separation tank; at least two micro-interface generators; and a return conduit. Compared with a traditional method, by breaking air to form micrometer-sized micro bubbles, and mixing the micro bubbles with a raw material to form a gas-liquid emulsion, a gas-liquid phase boundary area is increased, and the effect of enhancing mass transfer is achieved within a low preset operation condition range; moreover, the micro bubbles can be fully mixed with the raw material to form the gas-liquid emulsion, and by means of full gas-liquid phase mixing, it can be ensured that bacteria in the system can fully absorb oxygen in the raw material, thereby preventing the generation of a byproduct, and further improving the fermentation efficiency of the system.

Classes IPC  ?

• C12M 1/00 - Appareillage pour l'enzymologie ou la microbiologie
• C12M 1/04 - Appareillage pour l'enzymologie ou la microbiologie avec des moyens d'introduction de gaz

Abrégé

The present invention relates to an enhancing system and a process for preparing polyethylene on basis of a solution method, comprising: an ethylene storage tank, a reactor, a micro-interface generator, a killer, a desolvation tank, a rectification tower, a flash tank, a separation tank, a first drying tower, and a second drying tower. In the present invention, ethylene is broken up to form micron-scale bubbles, and the micron-scale bubbles are mixed with a solvent to form a gas-liquid emulsion, so that the phase interface area of gas-liquid two phases is enlarged, the thickness of a liquid film is reduced, the mass transfer resistance is reduced, and the effect of enhancing mass transfer in a lower preset operation condition range is achieved; and all of the micron-scale bubbles can be fully mixed with the solvent to form the gas-liquid emulsion; by fully mixing the gas-liquid two phases, it can be ensured that ethylene and an initiator in the system can be fully contacted with the solvent, further improving polymerization efficiency of the system.

Classes IPC  ?

• C08F 110/02 - Éthylène
• C08F 10/02 - Éthylène
• C08F 2/06 - Solvant organique
• C08F 2/01 - Procédés de polymérisation caractérisés par des éléments particuliers des appareils de polymérisation utilisés
• C08F 2/04 - Polymérisation en solution
• C08F 6/00 - Traitements postérieurs à la polymérisation
• C08F 210/02 - Éthylène
• C08F 210/16 - Copolymères de l'éthylène avec des alpha-alcènes, p. ex. caoutchoucs EP
• B01J 10/00 - Procédés chimiques généraux faisant réagir un liquide avec des milieux gazeux autrement qu'en présence de particules solidesAppareillage spécialement adapté à cet effet

Abrégé

Disclosed are an enhanced system and process for preparing cyclohexene by hydrogenating benzene, and the present invention belongs to the technical field of the preparation of cyclohexene. In the enhanced system, by installing a first microinterface generator and a second microinterface generator in a slurry bed reactor, a gas is broken into micron-scale bubbles on the micrometer scale to increase the area of the phase interface between a gas phase and a liquid phase and decrease the reaction pressure; by arranging a catalyst feeding pipeline between the first microinterface generator and the second microinterface generator, a catalyst is always suspended in the middle of a reactor under the sparging of bubbles of the second microinterface generator, thereby increasing the catalytic efficiency of the catalyst; and by arranging a separator with a baffle, the unreacted catalyst can be effectively filtered out from the reaction product, thereby achieving the effect of recycling. Compared with existing technologies, same has the characteristics of a low reaction pressure, a small energy consumption and a rapid reaction rate.

Classes IPC  ?

• C07C 5/11 - Hydrogénation partielle
• C07C 13/20 - Hydrocarbures monocycliques ou leurs dérivés hydrocarbonés acycliques à cycle hexagonal à cycle du cyclohexène
• B01J 19/00 - Procédés chimiques, physiques ou physico-chimiques en généralAppareils appropriés

Abrégé

The present invention relates to a micro-interface strengthening reaction system for preparing ethylene glycol based on ethylene hydration method and process, including: a reactor, an ethylene oxide generator, a micro-interface generator, and the like. In the present invention, the gas containing ethylene oxide is broken by the micro-interface generator to form micron-scale bubbles, and the micron-scale bubbles are mixed with deionized water to form the gas-liquid mixture, so as to increase the gas-liquid phase interfacial area, and achieve the effect of enhancing mass transfer within the lower preset operating conditions; meanwhile, micron-scale bubbles can be fully mixed with deionized water to form the gas-liquid mixture, by fully mixing the gas and liquid phases, it can be ensured that the deionized water in the system can fully contact the gas containing ethylene oxide, effectively improving the reaction efficiency of the system while increasing the conversion rate of ethylene glycol.

Classes IPC  ?

• C07C 29/10 - Préparation de composés comportant des groupes hydroxyle ou O-métal liés à un atome de carbone ne faisant pas partie d'un cycle aromatique à six chaînons par hydrolyse d'éthers, y compris d'éthers cycliques, p. ex. d'oxiranes
• C07C 31/20 - Alcools dihydroxyliques

Abrégé

Disclosed are a system and a process for industrial preparation of nitric acid employing micro interface enhancement. The system comprises a reactor (1), a concentrated nitric acid generator (2) and a micro interface generator (3), among others. The process comprises causing nitrogen dioxide gas to form into micrometer-sized micro gas bubbles, and mixing the micro gas bubbles with deionized water to form a gas-liquid mixture, so as to increase the interfacial surface area between the gas phase and the liquid phase, and achieve the effect of enhanced mass transfer under preset operation conditions. Micro gas bubbles can be sufficiently mixed with deionized water to form a gas-liquid mixture, wherein the gas phase and the liquid phase are sufficiently mixed, thus ensuring the deionized water in the system can make sufficient contact with nitrogen dioxide gas, which effectively increases the reaction efficiency in the system and thus enhances nitric acid conversion rate.

Classes IPC  ?

• B01J 10/00 - Procédés chimiques généraux faisant réagir un liquide avec des milieux gazeux autrement qu'en présence de particules solidesAppareillage spécialement adapté à cet effet

Abrégé

A system and process for preparing hydrogen peroxide based on the anthraquinone process, comprising: a hydrogenation tower (1), a microinterface generator (2), a filtering and cooling unit (3), an oxygenation tower (4), and an extraction tower (5). By breaking up hydrogen gas so that it forms micrometer-scale microbubbles, and by mixing the microbubbles with an anthraquinone derivative-containing working liquid or a 2-ethylhydroanthraquinone-containing hydrogenation solution to form a gas-liquid emulsion, the phase boundary area of the gas and liquid phases is increased, and an enhanced effect of mass transfer is achieved in the range of reduced preset operation conditions, the hydrogenation and oxidation efficiencies of the anthraquinone derivative-containing working liquid are increased, the reaction rate of hydrogen and oxygen is increased, costs are saved, and the hazardousness is reduced; by extracting the mixture of 2-ethylhydroanthraquinone and hydrogen peroxide via the extraction tower (5), countercurrent extraction is performed between a water phase flowing downwards and the mixture flowing upwards, thus implementing rapid extraction.

Classes IPC  ?

• C01B 15/023 - Préparation à partir de composés organiques par le procédé utilisant une alkylanthraquinone

Abrégé

Disclosed are a microinterface-enhanced system and process for preparing ethylene oxide from ethylene. The microinterface-enhanced system comprises a chlorohydrination reaction unit, a chlorohydrination reaction unit, a saponification reaction unit, a separation and purification unit, and a microinterface generator. By installing the microinterface generator for treating chlorine gas and ethylene, the chlorine gas or ethylene is broken into micron-scale bubbles on the micrometer scale, the micron-scale bubbles of chlorine gas are mixed with water to form a gas-liquid emulsion, and the micron-scale bubbles of ethylene are mixed with hypochlorous acid to form a gas-liquid emulsion, in order to increase the area of the phase interface between a gas phase and a liquid phase, decrease the thickness of a liquid film, and decrease the mass transfer resistance; in order to enhance the mass transfer efficiency and reaction efficiency of the gas and liquid components within a preset operation condition range to improve the reaction efficiency of the chlorine gas or ethylene; and in order to ensure that the reaction is carried out adequately and efficiently, and increase the utilization rates of the chlorine gas or ethylene, thus ensuring the reaction rate, achieving the aim of enhancing the reaction and reducing the production cost of ethylene oxide.

Classes IPC  ?

• B01J 8/08 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés avec des particules mobiles
• B01J 8/00 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés
• B01J 8/22 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés les particules étant fluidisées l'agent fluidisant étant un liquide du gaz étant introduit dans le liquide
• B01J 19/00 - Procédés chimiques, physiques ou physico-chimiques en généralAppareils appropriés
• C07D 301/02 - Synthèse du cycle de l'oxirane
• C07D 303/04 - Composés contenant des cycles oxirane contenant uniquement des atomes d'hydrogène et de carbone en plus des atomes d'oxygène des cycles
• C07D 303/12 - Composés contenant des cycles oxirane avec des radicaux hydrocarbonés, substitués par des atomes d'oxygène liés par des liaisons simples ou doubles

Abrégé

A micro-interface enhanced fermentation system and process. The system comprises: a bacteria feeding unit, a gas-phase feeding unit, a liquid-phase feeding unit, a fermentation unit, a micro-interface generator, and a post-processing unit.

Classes IPC  ?

• C12M 1/00 - Appareillage pour l'enzymologie ou la microbiologie
• C12M 1/04 - Appareillage pour l'enzymologie ou la microbiologie avec des moyens d'introduction de gaz

Abrégé

A system and method for treating industrial sludge by a micro-interface enhanced wet oxidation method, comprising: a reaction kettle (1). The reaction kettle (1) is provided with an industrial sludge inlet (101), a reaction product outlet (103) of the reaction kettle (1) is communicated with a material cooling inlet of a cooler (6) by means of a pipeline (51), and an air inlet (102) of the reaction kettle (1) is connected to an air intake duct (3). A micro-interface generator (2) is also provided in the reaction kettle (1), the micro-interface generator (2) is provided on an inner wall of the reaction kettle (1), and the micro-interface generator (2) is provided near the air inlet (102) and is communicated with the air intake duct (3).

Classes IPC  ?

• C02F 11/08 - Oxydation par air humide

Abrégé

Provided are a reaction system and process for enhancing the hydrogenation of dimethyl oxalate during the preparation of ethylene glycol from coal. The reaction system comprises a hydrogenation reaction unit, a material treatment unit, a removal unit, a refining unit and a microinterface generator. By installing the microinterface generator for treating hydrogen, the hydrogen is broken into micron-scale bubbles on the micrometer scale, the micron-scale bubbles of the hydrogen are mixed with dimethyl oxalate to form a gas-liquid emulsion, thereby reducing the mass transfer resistance, so that the mass transfer efficiency and reaction efficiency of the gas and liquid components are enhanced within a preset operation condition range; furthermore, the area of phase interface between a gas phase and a liquid phase is increased, the reaction efficiency of the hydrogen is improved, the utilization rate of the hydrogen is improved, and the production cost of ethylene glycol is reduced. In addition, by means of the gas liquid heat exchange between the dimethyl oxalate and a gas phase component output from a hydrogenation reactor via a gas liquid heat exchanger, the energy consumption is economized and the production costs are reduced.

Classes IPC  ?

• C07C 29/149 - Préparation de composés comportant des groupes hydroxyle ou O-métal liés à un atome de carbone ne faisant pas partie d'un cycle aromatique à six chaînons par réduction d'un groupe fonctionnel contenant de l'oxygène de groupes contenant C=O, p. ex. —COOH d'acides carboxyliques ou de leurs dérivés avec de l'hydrogène ou des gaz contenant de l'hydrogène
• C07C 29/76 - SéparationPurificationStabilisationEmploi d'additifs par traitement physique
• C07C 31/20 - Alcools dihydroxyliques

Abrégé

Provided are a system and process for producing phthalic acid by strengthening xylene oxidation. The system comprises: a slurry bed reactor (1), micro-interface generators (2, 6), a circulation pipeline (10), a gas inlet pipeline (11) and a separation unit (9), wherein the upper portion of the slurry bed reactor (1) is in communication with a condensation unit (7), and the lower portion thereof is in communication with a crystallization filter (12); the micro-interface generators (2, 6) are arranged inside the slurry bed reactor (1) and are used for breaking gas into micron-sized tiny bubbles, thereby improving the mass transfer efficiency of gas and liquid and reducing a reaction pressure; the circulation pipeline (10) is used for pumping a liquid-phase material at the bottom of the slurry bed reactor (1) into the first micro-interface generator (2); and a feeding inlet of the separation unit (9) is connected to the condensation unit (7), and a liquid-phase material outlet of the separation unit (9) is in communication with a liquid-phase material inlet of the first micro-interface generator (2).

Classes IPC  ?

• C07C 51/265 - Préparation d'acides carboxyliques, de leurs sels, halogénures ou anhydrides par oxydation avec l'oxygène moléculaire de composés contenant des cycles aromatiques à six chaînons sans ouverture du cycle comportant des chaînes latérales alkylées qui sont oxydées en groupes carboxyle
• C07C 63/24 - Acide benzènedicarboxylique-1, 3
• B01J 19/24 - Réacteurs fixes sans élément interne mobile

Abrégé

Provided in the present invention are an etherification-free system and process for preparing epoxypropane by strengthening propylene epoxidation, relating to the technical field of preparing epoxypropane by propylene epoxidation. The system comprises: a reaction tank internally provided with a first reaction area, a second reaction area and a third reaction area, wherein the first reaction area is connected to a mixed solvent storage tank for preparing and conveying a mixed solution of hydrogen peroxide, acetonitrile and a catalyst, the second reaction area is connected to a mixed solvent storage tank for storing and conveying propylene, and the third reaction area is connected to a gas-liquid separator for receiving a propylene epoxidation product and carrying out gas-liquid separation on the epoxidation product; and a circulation pump for communicating the second reaction area and the third reaction area is arranged outside the reaction tank. By means of the etherification-free system and process for preparing epoxypropane by strengthening propylene epoxidation provided in the present invention, the effects of no corrosion being caused to an apparatus and no generation of ether products occurring in the process of preparing epoxypropane are achieved.

Classes IPC  ?

• C07D 301/12 - Synthèse du cycle de l'oxirane par oxydation de composés non saturés, ou de mélanges de composés non saturés et de composés saturés par le peroxyde d'hydrogène ou par des peroxydes ou peracides inorganiques
• C07D 303/04 - Composés contenant des cycles oxirane contenant uniquement des atomes d'hydrogène et de carbone en plus des atomes d'oxygène des cycles

Abrégé

Provided are an enhanced reaction system and process for preparing acetic acid by means of the carbonylation of methanol, and the present invention belongs to the technical field of the preparation of acetic acid. The enhanced reaction system comprises a feeding unit for storing and transporting carbon oxide and methanol; a carbonylation reaction kettle with a microinterface generator provided therein, with the carbonylation reaction kettle being connected to the feeding unit and serving as a site for a carbonylation reaction; and the microinterface generator, wherein same is used for breaking bubbles of the carbon oxide into micro-bubbles with a diameter on the micron scale before the carbonylation reaction, so as to increase the mass transfer area of the phase interface between the carbon oxide and the methanol during the progress of the carbonylation reaction, thereby enhancing the efficiency of the carbonylation reaction. The enhanced reaction system and process for preparing acetic acid by means of the carbonylation of methanol, as provided by the present invention, solve the problem of the reaction efficiency of a system being reduced due to the fact that carbon oxide and methanol cannot be sufficiently mixed inside a carbonylation reaction kettle in the prior art.

Classes IPC  ?

• C07C 53/08 - Acide acétique
• C07C 51/12 - Préparation d'acides carboxyliques, de leurs sels, halogénures ou anhydrides par réaction avec du monoxyde de carbone sur un groupe contenant de l'oxygène d'un composé organique, p. ex. d'un alcool
• C07C 51/10 - Préparation d'acides carboxyliques, de leurs sels, halogénures ou anhydrides par réaction avec du monoxyde de carbone

Abrégé

An exhaust gas dust removal system and a method therefor. The system comprises a tank body (1) and a base (2); the base (2) is used for supporting the tank body (1); the tank body (1) is provided with a gas inlet and outlet device (3), a liquid inlet and outlet device (4), and a gas-liquid mixing device (5), wherein the gas inlet and outlet device (3) comprises an air inlet (31) and an air outlet (32) provided on the tank body (1); and a micro-interface generator (51) is provided near the air inlet (31) to break exhaust gas from the air inlet (31) into bubbles to increase the phase boundary area between the exhaust gas and the liquid in the tank body (1), so that more dust in the exhaust gas is mixed into the liquid, thereby improving the dust removal effect.

Classes IPC  ?

• B01D 47/02 - Séparation de particules dispersées dans l'air, des gaz ou des vapeurs en utilisant un liquide comme agent de séparation par passage de l'air, du gaz ou de la vapeur sur ou à travers un bain liquide

Abrégé

A system and a process for enhancing coal liquefaction on the basis of micro-interface, said system comprises a slurry bed reactor (1), a micro-interface generator (2), a circulation unit (4) and a separation unit (5); the slurry bed reactor (1) is filled with liquid phase products after coal indirect liquefaction; the micro-interface generator (2) is provided in the slurry bed reactor (1) to break up a crude coal gas into micron-sized bubbles, so as to enable same to be dissolved in a liquid phase product and form a gas-liquid emulsion; the circulating unit (4) is connected to a material outlet of the slurry bed reactor (1) and is used for performing primary separation and recycling treatment on a reaction product; the separation unit (5) is connected to the circulation unit (4) and is used for separating materials in a gas phase and a liquid phase from the circulation unit (4). The system can enable the gas to fully react under the action of the catalyst, reduce the occurrence of side reactions, and improve the product yield.

Classes IPC  ?

• C10G 2/00 - Production de mélanges liquides d'hydrocarbures de composition non définie à partir d'oxydes de carbone
• B01J 8/22 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés les particules étant fluidisées l'agent fluidisant étant un liquide du gaz étant introduit dans le liquide

Abrégé

The present invention relates to a reaction system and process for preparing butanol and octanol based on the microinterface-enhanced carbonylation of propylene. The reaction system comprises a carbonyl synthesis unit, a butyraldehyde treatment unit, a butyraldehyde condensation unit, a hydrogenation reaction unit, a purification unit, and a microinterface generator. In the present invention, by installing the microinterface generator to treat propylene and syngas, the propylene and syngas are broken into micron-scale bubbles on the micrometer scale, the micron-scale bubbles are mixed with a solution of a rhodium catalyst and triphenylphosphine to form a gas-liquid emulsion, so as to increase the area of the phase interface between a gas phase and a liquid phase; furthermore, the effect of enhancing the mass transfer is achieved within a lower preset operation condition range, the efficiency of carbonyl synthesis from the propylene and syngas is improved, the reaction efficiency and utilization rate of the propylene are improved, and the production cost of butanol and octanol is reduced, so that the present invention meets existing circular economy requirements.

Classes IPC  ?

• C07C 29/17 - Préparation de composés comportant des groupes hydroxyle ou O-métal liés à un atome de carbone ne faisant pas partie d'un cycle aromatique à six chaînons par hydrogénation de liaisons doubles ou triples carbone-carbone
• C07C 31/125 - Alcools monohydroxyliques acycliques contenant de cinq à vingt-deux atomes de carbone
• C07C 45/50 - Préparation de composés comportant des groupes C=O liés uniquement à des atomes de carbone ou d'hydrogènePréparation des chélates de ces composés par réaction avec le monoxyde de carbone par synthèse oxo
• C07C 45/74 - Préparation de composés comportant des groupes C=O liés uniquement à des atomes de carbone ou d'hydrogènePréparation des chélates de ces composés par des réactions ne créant pas de groupe C=O par isomérisationPréparation de composés comportant des groupes C=O liés uniquement à des atomes de carbone ou d'hydrogènePréparation des chélates de ces composés par des réactions ne créant pas de groupe C=O par modification de la taille du squelette carboné par augmentation du nombre d'atomes de carbone par réaction de composés comportant des groupes C=O sur eux-mêmes ou avec d'autres composés comportant des groupes C=O combinée avec une déshydratation
• C07C 47/02 - Composés saturés comportant des groupes —CHO liés à des atomes de carbone acycliques ou à de l'hydrogène
• C07C 47/21 - Composés non saturés comportant des groupes —CHO liés à des atomes de carbone acycliques avec uniquement des liaisons doubles carbone-carbone comme insaturation
• B01F 7/16 - Mélangeurs à agitateurs tournant dans des récipients fixes; Pétrins avec agitateurs tournant autour d'un axe vertical
• B01F 3/04 - Mélange, p.ex. dispersion, émulsion, selon les phases à mélanger de gaz ou de vapeurs avec des liquides

Abrégé

A system and a process for preparing propylene oxide based on micro-interface enhanced propylene epoxidation, comprising: a reactor, a micro-interface generator, and a reflux pipe. By means of breaking propylene gas to form micron-scale micron-sized bubbles and mixing the micron-sized bubbles with feed liquid to form a gas-liquid emulsion, the area of the phase boundary between the gas and liquid phases is increased, and the effect of enhancing mass transfer within a lower preset operating condition range is achieved; in addition, the micron-sized bubbles can fully mix with the feed liquid to form a gas-liquid emulsion, and fully mixing the gas and liquid phases can ensure that the oxygen source solution in the system can come into full contact with the propylene gas, thereby preventing the generation of by-products, and further increasing the reaction efficiency of the system.

Classes IPC  ?

• B01J 8/08 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés avec des particules mobiles
• B01J 8/00 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés
• B01J 8/22 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés les particules étant fluidisées l'agent fluidisant étant un liquide du gaz étant introduit dans le liquide
• B01J 19/00 - Procédés chimiques, physiques ou physico-chimiques en généralAppareils appropriés
• C07D 301/02 - Synthèse du cycle de l'oxirane
• C07D 303/04 - Composés contenant des cycles oxirane contenant uniquement des atomes d'hydrogène et de carbone en plus des atomes d'oxygène des cycles
• C07D 301/12 - Synthèse du cycle de l'oxirane par oxydation de composés non saturés, ou de mélanges de composés non saturés et de composés saturés par le peroxyde d'hydrogène ou par des peroxydes ou peracides inorganiques

Abrégé

A wet oxidation treatment system for industrial wastewater and a wet oxidation treatment method using the system. The wet oxidation treatment system comprises: a reaction tank body (1), a reaction chamber (101) and a stirring shaft (8) being provided inside the reaction tank body (1); a heating device (3), the heating device (3) being used for heating the reaction chamber (101); a gas-liquid separation device (4), the gas-liquid separation device (4) being connected to the discharge port of the reaction tank body (1); an initiator feeding device (9), the initiator feeding device (9) being connected to the reaction tank body (1) by means of a feeding pipeline (901), and further comprising an initiator storage tank (902) and a preheater (904); an oxygen generation device (2), the oxygen generation device (2) being in communication with the reaction tank body (1) by means of an oxygen pipeline (201), and comprising an air compressor (203), a buffer tank (207), a booster pump (202) and a gas cylinder (204); and a micro-interface generator (5), the micro-interface generator (5) being provided in the reaction chamber (101) and being used for breaking gas from the oxygen pipeline (201) into bubbles, so that a gas-liquid emulsion being formed by the bubbles and industrial wastewater, thereby increasing the phase interface area between gas and liquid, accelerating the reaction rate and reducing the reaction pressure.

Classes IPC  ?

• C02F 1/72 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par oxydation

Abrégé

The present invention relates to a system and process for strengthening ethylene polymerization. The system comprises: a feeding unit; a reaction unit connected to the feeding unit; a micro-interface generator provided in the feeding unit; and a discharging unit connected to the reaction unit. According to the present invention, ethylene is crushed to form micron-sized bubbles of micro-meter scale, so that the micron-sized bubbles of ethylene are mixed with a solvent to form a gas-liquid emulsion, the thickness of a liquid film is reduced, and mass transfer resistance is reduced; an initiator is crushed to form micron-sized bubbles of micro-meter scale, so that the micron-sized bubbles of the initiator are mixed with the gas-liquid emulsion to form a mixed material, thereby achieving an effect of enhancing mass transfer within a lower preset operation condition range; meanwhile, the micron-sized bubbles all can be fully mixed with the solvent to form the gas-liquid emulsion; by fully mixing gas and liquid phases, it can be ensured that the ethylene in the system and the initiator can be in full contact with the solvent, and the polymerization efficiency of the system is further improved.

Classes IPC  ?

• C08F 10/02 - Éthylène
• C08F 210/16 - Copolymères de l'éthylène avec des alpha-alcènes, p. ex. caoutchoucs EP
• C08F 210/02 - Éthylène
• C08F 218/08 - Acétate de vinyle
• C08F 220/10 - Esters
• C08F 2/01 - Procédés de polymérisation caractérisés par des éléments particuliers des appareils de polymérisation utilisés
• B01J 10/00 - Procédés chimiques généraux faisant réagir un liquide avec des milieux gazeux autrement qu'en présence de particules solidesAppareillage spécialement adapté à cet effet
• B01J 4/00 - Dispositifs d'alimentationDispositifs de commande d'alimentation ou d'évacuation
• B01J 4/02 - Dispositifs d'alimentationDispositifs de commande d'alimentation ou d'évacuation pour introduire des quantités mesurées de réactifs
• B01J 19/14 - Production de mélanges de gaz inertesUtilisation des gaz inertes en général

Abrégé

The present invention provides an enhanced carbonylation reaction system and process, and relates to the technical field of carbonylation preparation of carbonyl compounds such as aldehyde and ketone. The enhanced carbonylation reaction system comprises a feeding unit; a reaction kettle connected to the feeding unit; a micro-interface generator provided in the reaction kettle, connected to the feeding unit and configured to receive gas-phase material and crush the gas-phase material into micro bubbles with a micron-level diameter before the carbonylation reaction to increase an interphase mass transfer area between the gas-phase material and the liquid-phase material in the carbonylation process to enhance the carbonylation reaction efficiency, and sequentially convey the carbonylation product to a flash tower, a rectification device and a separation device to obtain a target product. The enhanced carbonylation reaction system and process can solve the problem in the prior art that the gas-phase reactant and the liquid-phase reactant cannot be fully mixed inside the carbonylation reactor kettle, which decreases the system reaction efficiency.

Classes IPC  ?

• C07C 51/12 - Préparation d'acides carboxyliques, de leurs sels, halogénures ou anhydrides par réaction avec du monoxyde de carbone sur un groupe contenant de l'oxygène d'un composé organique, p. ex. d'un alcool
• C07C 53/08 - Acide acétique
• C07C 68/00 - Préparation des esters de l'acide carbonique ou de l'acide formique halogéné
• C07C 69/96 - Esters de l'acide carbonique ou de l'acide formique halogéné
• B01J 10/00 - Procédés chimiques généraux faisant réagir un liquide avec des milieux gazeux autrement qu'en présence de particules solidesAppareillage spécialement adapté à cet effet

Abrégé

A system and process for enhancing toluene oxidation, belonging to the technical field of preparing benzoic acid. A traditional bubble reactor is replaced with a tubular reactor (3) to improve the controllability of the oxidation reaction process; a micro-interface generator (4) is provided in the tubular reactor (3) to increase the gas-liquid phase interface area of oxygen and toluene, so as to improve the reaction efficiency; a casing pipe having a two-layer structure of an inner tube (11) and an outer tube (12) is provided to achieve the effect of using excessive heat of a reaction product for preheating the toluene, so as to reduce the loss of energy; compared with the traditional technology for preparing benzoic acid, the tubular reactor (3) is replaced and the micro-interface generator (4) and a separation unit (5) are added into the reactor (3), so as to improve the yield of the product.

Classes IPC  ?

• C07C 45/36 - Préparation de composés comportant des groupes C=O liés uniquement à des atomes de carbone ou d'hydrogènePréparation des chélates de ces composés par oxydation avec l'oxygène moléculaire de restes —CHx dans des composés non saturés dans des composés contenant des cycles aromatiques à six chaînons
• C07C 51/265 - Préparation d'acides carboxyliques, de leurs sels, halogénures ou anhydrides par oxydation avec l'oxygène moléculaire de composés contenant des cycles aromatiques à six chaînons sans ouverture du cycle comportant des chaînes latérales alkylées qui sont oxydées en groupes carboxyle
• B01J 8/00 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés

Abrégé

A system and process for enhancing propylene polymerization. The system comprises: a polymerization reactor, a gas phase feeding unit, a liquid phase feeding unit, a polymeric molecular weight adjustment unit, a reflow unit, a cooling unit, and micro-interface generators. Propylene is broken to form micron-sized bubbles at a microscale, and the micron-sized bubbles are mixed with a solvent to form a gas-liquid emulsion, so as to increase the phase-contacting area of gas and liquid phases, improve polypropylene synthesis efficiency, improve propylene reaction efficiency, and save the cost; heat exchange is performed between raw materials and a produced material by means of a first heat exchanger, a second heat exchanger, and a third heat exchanger, so that energy is saved; and by means of combined use of a first micro-interface generator and a second micro-interface generator, the residence time of the micron-sized bubbles in a reaction zone is prolonged and secondary reaction is enabled between the gas and liquid phases, so that the propylene utilization is improved, the reaction efficiency is improved, the polypropylene production cost is reduced, and requirements of existing circular economy are met.

Classes IPC  ?

• B01J 8/00 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés
• C08F 10/06 - Propène
• C08F 2/01 - Procédés de polymérisation caractérisés par des éléments particuliers des appareils de polymérisation utilisés

Abrégé

Disclosed are a system and process for preparing hydrogen peroxide based on an isopropanol method. The system comprises a reactor (1), a microinterface generator (2) and a recovery device (3). In the system and process, by breaking air or oxygen into micron-scale bubbles on the micrometer scale, the micron-scale bubbles are mixed with a raw material liquid to form a gas-liquid emulsion, thereby increasing the area of phase interface between a gas phase and a liquid phase and achieving the effect of enhancing the mass transfer within the scope of lower preset operation conditions; in addition, the micron-scale bubbles can be sufficiently mixed with the raw material liquid to form the gas-liquid emulsion. The sufficient mixing of the gas and liquid phases can ensure that an isopropanol solution in the system can be brought into sufficient contact with the air or oxygen, thereby increasing the conversion rate of hydrogen peroxide while also efficiently improving the reaction efficiency of the system.

Classes IPC  ?

• C01B 15/026 - Préparation à partir de composés organiques à partir d'alcools

Abrégé

A built-in micro interfacial enhanced reaction system and process for PTA production with PX are provided. The system includes a reactor and a micro interfacial unit disposed inside reactor. The reactor includes a shell, an inner cylinder concentrically disposed inside shell, and a circulating heat exchange device partially disposed outside shell, inner cylinder having a bottom end connected to inner bottom surface of the shell in closed manner and an open top end, a region between shell and inner cylinder being first reaction zone, inner cylinder containing second reaction zone and third reaction zone from top to bottom, circulating heat exchange device being connected to inner cylinder and micro interfacial unit respectively. The invention can solve problems of large waste of reaction solvent acetic acid under high temperature and high pressure and being unable to take out the product TA in time during existing process of PTA production with PX.

Classes IPC  ?

• B01J 19/18 - Réacteurs fixes avec éléments internes mobiles
• B01J 19/00 - Procédés chimiques, physiques ou physico-chimiques en généralAppareils appropriés
• C07C 45/33 - Préparation de composés comportant des groupes C=O liés uniquement à des atomes de carbone ou d'hydrogènePréparation des chélates de ces composés par oxydation avec l'oxygène moléculaire de restes —CHx
• C07C 51/255 - Préparation d'acides carboxyliques, de leurs sels, halogénures ou anhydrides par oxydation avec l'oxygène moléculaire de composés contenant des cycles aromatiques à six chaînons sans ouverture du cycle

Abrégé

The present invention is suitable for use in the technical field of 1,4 -butanediol preparation, and provides a preparation system and process for 1,4-butanediol, comprising a formaldehyde generating apparatus, an acetylene generating apparatus, microinterface generators, a deionising system, and hydrogenation systems; output ends of the formaldehyde generating apparatus and the acetylene generating apparatus are connected to an alkylation reaction apparatus by means of a first microinterface generator; an output end of the deionising system is connected to the hydrogenation systems by means of second microinterface generators; the formaldehyde generating apparatus comprises a heating system, a reaction system, and a product collection system connected to one another, the reaction system comprising a flame retardant filter, a reactor, and an absorption tower; and the heater comprises a first heater and a second heater. Thus, by means of improving the traditional 1,4-butanediol production process, the present invention reduces enterprise equipment upgrade costs and increases reaction efficiency.

Classes IPC  ?

• C07C 45/38 - Préparation de composés comportant des groupes C=O liés uniquement à des atomes de carbone ou d'hydrogènePréparation des chélates de ces composés par oxydation avec l'oxygène moléculaire de groupes fonctionnels C—O— en groupes C=O d'un groupe hydroxyle primaire
• C07C 47/052 - Préparation par oxydation de méthanol
• C07C 29/44 - Préparation de composés comportant des groupes hydroxyle ou O-métal liés à un atome de carbone ne faisant pas partie d'un cycle aromatique à six chaînons par des réactions d'addition augmentant le nombre d'atomes de carbone, c.-à-d. par des réactions impliquant au moins une liaisons double ou triple liaison carbone-carbone
• C07C 33/046 - Butynediols
• C07C 29/17 - Préparation de composés comportant des groupes hydroxyle ou O-métal liés à un atome de carbone ne faisant pas partie d'un cycle aromatique à six chaînons par hydrogénation de liaisons doubles ou triples carbone-carbone
• C07C 29/80 - SéparationPurificationStabilisationEmploi d'additifs par traitement physique par distillation
• C07C 31/20 - Alcools dihydroxyliques

Abrégé

A reaction system and method for enhancing coal liquefaction. The system comprises a coal slurry tank (1), a preheater (2), a micro-interface generator (3), a reactor (4), a separator (5), and a distillation tower (6). The reaction system can reduce energy consumption while ensuring reaction efficiency, and can ensure that the temperature distribution inside the reactor is more uniform, thereby preventing the generation of by-products and further improving the product yield of the system.

Classes IPC  ?

• C10G 1/06 - Production de mélanges liquides d'hydrocarbures à partir de schiste bitumineux, de sable pétrolifère ou de matières carbonées solides non fusibles ou similaires, p. ex. bois, charbon par hydrogénation destructive