Abrégé

The present disclosure relates to a copolyamide, and a preparation method therefor and the use thereof. The copolyamide has an adjustable melting point, hardness and other properties, and has photoluminescence and an improved molding processability. By modifying the adjustment of the main chain and side groups, the copolyamide can also exhibit additional functional benefits, such as antistatic, antibacterial, flame retardant and other properties. The method of the present disclosure is simple and efficient, and the selected comonomer can be derived from renewable biological resources, such that the dependence on petroleum resources is effectively reduced, thereby reducing production costs and improving the overall economic benefits.

Classes IPC  ?

• C08G 69/00 - Composés macromoléculaires obtenus par des réactions créant une liaison amide carboxylique dans la chaîne principale de la macromolécule
• C08G 69/14 - Lactames
• C08G 69/02 - Polyamides dérivés, soit des acides amino-carboxyliques, soit de polyamines et d'acides polycarboxyliques
• C08G 69/26 - Polyamides dérivés, soit des acides amino-carboxyliques, soit de polyamines et d'acides polycarboxyliques dérivés de polyamines et d'acides polycarboxyliques
• C08G 69/36 - Polyamides dérivés, soit des acides amino-carboxyliques, soit de polyamines et d'acides polycarboxyliques dérivés d'aminoacides, de polyamines et d'acides polycarboxyliques

Abrégé

The present invention relates to the technical field of carbon materials. Disclosed are a mesophase pitch, and a production method and production system therefor. The method comprises: (1) performing a first thermal reaction on a hydrocarbon-containing raw material to obtain a first gas-phase stream and a first liquid-phase stream; and (2) carrying out a second thermal reaction on the first liquid-phase stream to obtain a second gas-phase stream and a second liquid-phase stream, wherein the content of anisotropic components in the first liquid-phase stream is not greater than 10%, and the average particle size of mesophase spheres in the anisotropic components is not greater than 20 μm. The method is simple to operate, and the obtained mesophase pitch has the characteristics of a moderate softening point, good spinnability, etc.

Classes IPC  ?

• C10C 3/02 - Traitement du brai, de l'asphalte, du bitume par des moyens chimiques

Abrégé

The present invention relates to the field of silver catalysts, and relates to an α-aluminum oxide carrier and a preparation method therefor, and a silver catalyst and a use thereof in preparation of ethylene oxide by ethylene epoxidation. The specific surface area of the α-aluminum oxide carrier is 0.3-4.0 m2/g, the water absorption rate is not lower than 25%, the mechanical strength is not lower than 40 N/particle, and the proportion of the volume of pores having a pore size of greater than or equal to 20 μm to the total pore volume is greater than 4%.

Classes IPC  ?

• B01J 21/06 - Silicium, titane, zirconium ou hafniumLeurs oxydes ou hydroxydes

Abrégé

A testing device for measuring oil, gas and water contents in rock has a heating desorption unit that has a sample chamber for placing a rock sample to be detected, a crushing mechanism arranged within the sample chamber, and a heating mechanism. The heating desorption unit crushes and heats the rock sample in a sealed manner to achieve gas analysis and desorption analysis of oil and water contained therein, thus obtaining components to be detected. The device further has a cold trap collection unit in communication with the sample chamber, a light hydrocarbon capture unit in communication with the cold trap collection unit, a gas measuring unit in communication with the light hydrocarbon capture unit for measuring and calculating a gas volume; and a central control unit for controlling the testing device.

Classes IPC  ?

• G01N 33/24 - Matériaux de la terre

Abrégé

Provided are a ZSM-5 molecular sieve, a preparation method, and a lightening method. The total specific surface area of the ZSM-5 molecular sieve is 300-500 m2/g, the external specific surface area of which accounts for 33-45% of the total specific surface area, and the ratio of the peak area of the peak at the chemical shift of 53 ppm in the nuclear magnetic spectrum of 27Al in the ZSM-5 molecular sieve to that of tetracoordinated Al is greater than or equal to 50%. The preparation method for the ZSM-5 molecular sieve comprises: S1, mixing a first silicon source, a first template agent, a first alkali source and water to obtain a seed gel, wherein the first silicon source is a solid silicon source; S2, mixing a second silicon source, an aluminum source, a second template agent, a second alkali source, water and the seed gel to obtain a synthetic liquid; and S3, crystallizing the synthetic liquid to obtain a ZSM-5 molecular sieve. Further provided are a ZSM-5 molecular sieve-based catalyst, a method for lightening light hydrocarbon and naphtha by using the ZSM-5 molecular sieve-based catalyst, and the use thereof. The ZSM-5 molecular sieve has a specific external specific surface area proportion, and the prepared catalyst can improve the yield of the cracking raw material under the conditions of a low hydrogen-oil volume ratio.

Classes IPC  ?

• C01B 39/40 - Type ZSM-5 utilisant au moins un agent structurant organique

Abrégé

A continuous process for producing adamantane includes the steps of: 1) providing a liquid feed stream comprising endo-tetrahydrodicyclopentadiene; and 2) passing the liquid feed stream through a first reaction zone filled with a hydrogenation protective agent and a second reaction zone filled with an isomerization catalyst sequentially to carry out hydroisomerization reaction and obtain adamantane.

Classes IPC  ?

• C07C 5/29 - Réarrangement des atomes de carbone dans le squelette hydrocarboné par modification du nombre d'atomes de carbone dans un cycle tout en conservant le nombre de cycles

Abrégé

A one-step transalkylation process that converts alkylphenols from low or medium temperature coal tar into both phenol and cresols is described. The process involves the separation of the coal tar into at least two fractions: a light cut fraction comprising compounds having a boiling point of 150°C to 250°C cut, and a heavy cut fraction comprising compounds having a boiling point above 250°C. The light cut fraction is used to produce phenolics via extraction. The alkylphenol stream also contains significant amounts of phenol and cresols. The phenol and cresols are separated from the alkylphenol stream prior to transalkylation to minimize yield loss, particularly for cresols. The alkylphenol stream can be purified before or after separation of the phenol and cresols from the alkylphenol stream.

Classes IPC  ?

• C07C 37/00 - Préparation de composés comportant des groupes hydroxyle ou O-métal liés à un atome de carbone d'un cycle aromatique à six chaînons
• C07C 37/48 - Préparation de composés comportant des groupes hydroxyle ou O-métal liés à un atome de carbone d'un cycle aromatique à six chaînons par échange de groupes hydrocarbonés, éventuellement substitués, avec d'autres composés, p. ex. par transalkylation
• C07C 39/00 - Composés comportant au moins un groupe hydroxyle ou O-métal lié à un atome de carbone d'un cycle aromatique à six chaînons
• C07C 39/04 - Phénol
• C07C 39/07 - Phénols alkylés ne contenant comme groupes alkyles que des groupes méthyle, p. ex. crésols, xylénols

Abrégé

A composite separator and a preparation method therefor, as well as a lithium-sulfur battery containing the composite separator are provided. The composite separator has a polymer substrate film and a composite layer disposed on the surface of the polymer substrate film. The composite layer includes a molecular sieve and a conductive carbon material. The molecular sieve contains cobalt and optionally lithium.

Classes IPC  ?

• H01M 50/451 - Séparateurs, membranes ou diaphragmes caractérisés par le matériau ayant une structure en couches comprenant des couches de matériau organique uniquement et des couches comprenant un matériau inorganique
• H01M 10/052 - Accumulateurs au lithium
• H01M 50/403 - Procédés de fabrication des séparateurs, des membranes ou des diaphragmes
• H01M 50/417 - Polyoléfines
• H01M 50/426 - Polymères fluorocarbonés
• H01M 50/434 - Céramiques
• H01M 50/446 - Matériau composite constitué d’un mélange de matériaux organiques et inorganiques
• H01M 50/489 - Séparateurs, membranes, diaphragmes ou éléments d’espacement dans les cellules caractérisés par leurs propriétés physiques, p. ex. degré de gonflement, hydrophilicité ou propriétés pour court-circuiter

Abrégé

The present invention relates to the technical field of petroleum drilling. Disclosed are a plugging agent, and an oil-based drilling fluid and a use thereof. The plugging agent provided by the present invention has a multi-scale broad-spectrum strong plugging effect on formation micro-fractures, and the addition of the plugging agent into the oil-based drilling fluid can effectively solve the problem of wellbore instability and improve the safety of deep oil and gas exploration.

Classes IPC  ?

• C09K 8/502 - Compositions à base d'huile
• C09K 8/06 - Compositions ne contenant pas d'argile

Abrégé

Processes for removing residual impurities from a stream exiting a caustic extraction process are described. The impurities are removed using a sulfonic resin bed or an adsorbent bed containing acidic zeolites or cation exchanged zeolites. The resin technology and adsorbent technology can be used alone or in tandem to eliminate impurities. The impurities to be removed include, but are not limited to, nitrogen containing compounds, sulfur containing compounds, chloride containing compounds, other impurities, or combinations thereof.

Classes IPC  ?

• C07C 37/82 - SéparationPurificationStabilisationEmploi d'additifs par traitement physique par traitement solide-liquideSéparationPurificationStabilisationEmploi d'additifs par traitement physique par absorption-adsorption chimique
• C07C 37/00 - Préparation de composés comportant des groupes hydroxyle ou O-métal liés à un atome de carbone d'un cycle aromatique à six chaînons
• C07C 39/00 - Composés comportant au moins un groupe hydroxyle ou O-métal lié à un atome de carbone d'un cycle aromatique à six chaînons

Abrégé

A method for olefin polymerization includes the steps of: introducing at least two reaction monomer streams containing olefin sources into at least two parallel tubular reactors respectively, performing one-stage high-pressure polymerization respectively, and then introducing the obtained one-stage high-pressure polymerization product into one or more serial tubular reactors to perform multi-stage high-pressure polymerization. At least one free radical polymerization initiator is introduced respectively to participate in one-stage high-pressure polymerization and/or multi-stage high-pressure polymerization, and the pressure of the reaction monomer stream is greater than or equal to 100 MPa. The reaction monomer stream containing olefin source is introduced into at least two parallel tubular reactors, and performs one-stage high-pressure polymerization respectively to better control the feed temperature, pressure and other parameters of the tubular reactor.

Classes IPC  ?

• C08F 2/01 - Procédés de polymérisation caractérisés par des éléments particuliers des appareils de polymérisation utilisés
• C08F 2/38 - Polymérisation utilisant des régulateurs, p. ex. des agents d'arrêt de chaîne
• C08F 110/02 - Éthylène

Abrégé

A pseudo-boehmite has a ratio of crystalline sizes D(130) and D(020) at a ratio of D(130)/D(020)=1.0-1.5, preferably, 1.1-1.3. A preparation method of the pseudo-boehmite, a catalytic cracking catalyst containing the pseudo-boehmite, and a preparation method and application of the catalytic cracking catalyst are provided. The pseudo-boehmite is applied to a catalytic cracking catalyst, and can produce a significant mesopore distribution in case that the catalyst strength is qualified, significantly improving the pore structure of the catalyst, which is of great significance for promoting the efficient diffusion of heavy oil macromolecules, reaction intermediates and product molecules in the catalyst, reducing the coke yield, and optimizing the product distribution.

Classes IPC  ?

• C01F 7/142 - Oxyde ou hydroxyde d'aluminium obtenus à partir d'aluminates de métaux alcalins à partir de solutions aqueuses d'aluminate par neutralisation avec un agent acide avec du dioxyde de carbone
• B01J 21/04 - Alumine
• B01J 29/08 - Zéolites aluminosilicates cristallinesLeurs composés isomorphes du type faujasite, p. ex. du type X ou Y
• B01J 37/00 - Procédés de préparation des catalyseurs, en généralProcédés d'activation des catalyseurs, en général
• C10G 11/18 - Craquage catalytique, en l'absence d'hydrogène, des huiles d'hydrocarbures avec catalyseurs solides mobiles préchauffés selon la technique du "lit fluidisé"

Abrégé

The present application relates to an ethylbenzene deethylation catalyst, an aromatic hydrocarbon isomerization catalyst system comprising same, preparation methods therefor, and use thereof. The ethylbenzene deethylation catalyst comprises a first molecular sieve, a first binder, a regulator, an activity inhibitor, and a first metal, and has a volume-based median pore diameter of 300-1000 nm. The first molecular sieve is lamellar; the size of the first molecular sieve crystal in the b-axis direction is 0.5-5 μm, and the sizes in the a-axis direction and the c-axis direction, which are each 2-15 μm, are larger than the size in the b-axis direction. The regulator is an inert substance having an average particle size of 5-100 μm. The activity inhibitor comprises a Si-containing substance and a C-containing substance. By means of the ethylbenzene deethylation catalyst, during aromatic hydrocarbon isomerization, the ethylbenzene conversion rate can be enhanced, and the loss of dimethylbenzene can be reduced.

Classes IPC  ?

• C07C 7/148 - Purification, séparation ou stabilisation d'hydrocarburesEmploi d'additifs par traitement provoquant une modification chimique d'au moins un composé
• C07C 15/08 - Xylènes
• C07C 5/27 - Réarrangement des atomes de carbone dans le squelette hydrocarboné
• C07C 4/18 - Procédés catalytiques
• C07C 15/04 - Benzène
• B01J 29/22 - Métaux nobles
• B01J 29/80 - Mélanges de différentes zéolites

Abrégé

The present invention relates to the technical field of methane oxidation coupling, and disclosed are a single-atom catalyst comprising a carrier and an active metal loaded on the carrier, and a preparation method therefor and the use thereof. In the single-atom catalyst provided in the present invention, the active metal forms a single-atom active site on the carrier, and a better catalytic effect of methane oxidation coupling reaction is obtained by using the synergistic effects between the active metal and the carrier and between the active metal.

Classes IPC  ?

• B01J 35/00 - Catalyseurs caractérisés par leur forme ou leurs propriétés physiques, en général
• B01J 23/10 - Catalyseurs contenant des métaux, oxydes ou hydroxydes métalliques non prévus dans le groupe des terres rares
• C07C 2/84 - Préparation d'hydrocarbures à partir d'hydrocarbures contenant un plus petit nombre d'atomes de carbone par condensation d'hydrocarbures avec élimination partielle d'hydrogène par couplage oxydant catalytique
• C07C 11/04 - Éthylène
• B01J 37/18 - Réduction avec des gaz contenant de l'hydrogène libre

Abrégé

The present invention relates to the field of olefin polymerization, and discloses polypropylene, and a preparation method therefor and the use thereof. In the polypropylene, the molar content of mm is less than or equal to 97.4%, the molar content of mmmm is greater than or equal to 91.6%, and the ratio of the molar content of mmmm to the molar content of mm is greater than or equal to 95.85%; and the half-peak width of a melting peak of the polypropylene is greater than or equal to 6°C. The polypropylene provided by the present invention has both a relatively high nominal strain at tensile fracture and a relatively high stress at tensile fracture, and when used in the production of spunbond fibers or flat filament products, the obtained products have good spinnability, good elongation at break and good breaking strength.

Classes IPC  ?

• C08F 110/06 - Propène
• C08F 10/00 - Homopolymères ou copolymères d'hydrocarbures aliphatiques non saturés contenant une seule liaison double carbone-carbone

Abrégé

A hydrogenation catalyst, and preparation and use thereof are provided. The catalyst has a support and a hydrogenation active metal component, a phosphorus component and an organic complexing component supported on the support. The hydrogenation active metal component has a Group VIII metal and a Group VIB metal, the organic complexing component has an alcohol, a carboxylic acid, and/or an amine. The catalyst has a spectrum obtained by a temperature-programmed oxidation test exhibiting at least two CO2 release peaks, the first release peak being in the range of 200-300° C., the second release peak being in the range of 300-400° C. The ratio of the peak height of the first release peak to the peak height of the second release peak is in the range of 0.5-5:1.

Classes IPC  ?

• B01J 27/19 - Molybdène
• B01J 21/04 - Alumine
• B01J 35/30 - Catalyseurs caractérisés par leur forme ou leurs propriétés physiques, en général caractérisés par leurs propriétés physiques
• B01J 35/40 - Catalyseurs caractérisés par leur forme ou leurs propriétés physiques, en général caractérisés par leurs dimensions, p. ex. granulométrie
• B01J 35/50 - Catalyseurs caractérisés par leur forme ou leurs propriétés physiques, en général caractérisés par leur forme ou leur configuration
• B01J 37/02 - Imprégnation, revêtement ou précipitation
• B01J 37/20 - Sulfuration
• C10G 45/08 - 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 caractérisé par le catalyseur utilisé contenant du nickel ou du cobalt, ou leurs composés en combinaison avec du chrome, du molybdène ou du tungstène, ou leurs composés

Abrégé

A catalyst regeneration method is suitable for a fluidized catalytic cracking unit has a catalytic cracking reactor and a catalyst regenerator. The regeneration method has the following steps: 1) providing a biomass-derived biomass charcoal; 2) feeding the biomass charcoal and the catalyst to be regenerated from the catalytic cracking reactor into the catalyst regenerator together or separately; 3) introducing an oxygen-containing gas into the catalyst regenerator, wherein the oxygen content of the oxygen-containing gas is 14-28% by volume; and 4) contacting the catalyst to be regenerated with the biomass charcoal and oxygen-containing gas in the catalyst regenerator for coke-burning regeneration. The method can significantly reduce carbon emissions from the catalytic cracking unit, realize the recycling of carbon elements, and provide energy for other process units.

Classes IPC  ?

• B01J 38/14 - Traitement avec un gaz contenant de l'oxygène libre en réglant la teneur en oxygène dans le gaz d'oxydation
• C10B 53/02 - Distillation destructive spécialement conçue pour des matières premières solides particulières ou sous forme spéciale de matières contenant de la cellulose

Abrégé

A positioning and orientating apparatus for branch well, which has an orientating coupling shaft; a hydraulic cylinder having a guiding sleeve; a setting unit having an anchoring mechanism and a sealing mechanism; a setting actuation unit, having a sealing cylinder, a piston, and a force transmitting cylinder, wherein an upper end of the force transmitting cylinder is fixedly connected to the piston, a sealing chamber in communication with the central flow channel is formed within the sealing cylinder, and the piston is configured to drive the force transmitting cylinder to move downwards when a pressure of the drilling fluid reaches a first pressure; and a releasing unit having a pressure-bearing cylinder, an elastic claw, and a ball seat. The elastic claw is separated from the slot by lifting up the releasing unit when the pressure of the drilling fluid reaches a second pressure, thus completing a releasing procedure.

Classes IPC  ?

• E21B 23/01 - Appareils pour déplacer, mettre en place, verrouiller, libérer ou retirer, les outils, les packers ou autres éléments dans les trous de forage pour ancrer les outils ou similaires
• E21B 47/09 - Localisation ou détermination de la position d'objets dans les trous de forage ou dans les puitsIdentification des parties libres ou bloquées des tubes

Abrégé

Disclosed are a transition metal-doped iridium-based composite catalyst and its preparation and use. The catalyst is essentially composed of amorphous oxides of iridium and a transition metal. The transition metal is selected from a metal of Group IVB, a metal of Group VB or a combination thereof. In terms of moles, the ratio of the content of iridium to the content of the transition metal in the catalyst is (0.4-0.7):(0.3-0.6). In the XRD spectrum of the catalyst, there is no diffraction peak corresponding to Iridium oxide in rutile phase. There is no diffraction peak corresponding to the crystalline phase of the oxide of the transition metal. The catalyst is in the form of a nano powder, has a uniform bulk structure, high catalytic activity and low usage amount of the precious metal iridium, and has excellent performance when applied to the anode of a proton exchange membrane water electrolyzer.

Classes IPC  ?

• C25B 11/077 - Oxyde de métal non noble
• C25B 9/23 - Cellules comprenant des électrodes fixes de dimensions stablesAssemblages de leurs éléments de structure avec des diaphragmes comprenant des membranes échangeuses d'ions dans ou sur lesquelles est incrusté du matériau pour électrode

Abrégé

The present invention relates to the field of heterogeneous catalysts, and disclosed are a supported catalyst, and a preparation method therefor and a use thereof. The catalyst comprises a carrier and a metal supported on the carrier, wherein the carrier is a nitrogen-containing carbide modified oxide, an element N in the nitrogen carbide comprises graphitic N and pyridinic N, and the mass ratio of the graphitic N to the pyridinic N is 0.1-2:1. The nitrogen carbide in the carrier of the supported catalyst comprises the graphitic N and the pyridinic N, and the graphitic N and the pyridinic N satisfy a specific content relationship, so that the reactive metal in the supported catalyst is bonded coordinately to the graphitic N and the pyridinic N to generate a strong electronic interaction, and the reactive metal is dispersed to form active sites. In addition, the catalyst contains a rich mesoporous structure, so that metal atoms are stably dispersed and are not prone to agglomeration, significantly improving the catalytic activity and cycle stability of the catalyst.

Classes IPC  ?

• B01J 27/24 - Composés de l'azote

Abrégé

D1GG=0.1-1.2. The catalyst of the present invention can significantly improve the catalytic efficiency of a palladium-carbon catalyst, and can effectively reduce the residual amount of 4-CBA in a terephthalic acid hydrofining reaction.

Classes IPC  ?

• B01J 23/44 - Palladium
• B01J 21/18 - Carbone
• B01J 27/24 - Composés de l'azote
• C07C 63/26 - Acide benzènedicarboxylique-1, 4
• C07B 35/02 - Réduction

Abrégé

An underground tractor automatic transmission system and a control method. The system comprises a variable-speed transmission device, and a variable-speed reducer connected to a tractor via a variable-speed transmission shaft; the variable-speed transmission shaft is configured to allow, by means of an axial adjustment assembly, changes in the axial position; axial positions of the variable-speed transmission shaft at least comprise a first axial position and a second axial position; the output end of the variable-speed transmission shaft is provided with a first transmission member and a second transmission member; when the variable-speed transmission shaft is located at the first axial position, the variable-speed transmission shaft is connected to the variable-speed reducer by means of the first transmission member, so that the variable-speed transmission device is at a first reduction gear; when the variable-speed transmission shaft is located at the second axial position, the variable-speed transmission shaft is connected to the variable-speed reducer by means of the second transmission member, so that the variable-speed transmission device is at a second reduction gear.

Classes IPC  ?

• F16H 3/70 - Transmissions à engrenages pour transmettre un mouvement rotatif à rapport de vitesse variable ou pour inverser le mouvement rotatif utilisant des engrenages à mouvement orbital dans lesquels l'axe central de la transmission est situé à l'intérieur de la périphérie d'un engrenage orbital
• F16H 37/02 - Combinaisons de transmissions mécaniques non prévues dans les groupes comportant essentiellement et uniquement des transmissions à engrenages ou à friction

Abrégé

The present invention belongs to the technical field of oil and gas development, and specifically relates to a water distribution device, a water distribution measurement method and a layered fracturing-flooding tubing string. The water distribution device comprises: a body, which comprises an outer wall, an inner wall, a cavity formed between the outer wall and the inner wall, and a flow-passing hole formed in the inner wall, wherein an injection hole extending in a radial direction is provided in the outer wall; a water injection mechanism arranged in the cavity, wherein the water injection mechanism is configured to open or close the injection hole in response to the pressure in the flow-passing hole; a measurement mechanism, which is arranged in the flow-passing hole and is configured to measure flow, wherein the measurement mechanism is configured to enable a fluid in the flow-passing hole to flow to the outside of the body by means of the water injection mechanism and the injection hole; a bypass mechanism arranged in the cavity, wherein the bypass mechanism is configured to be capable of being in parallel communication with the flow-passing hole, such that at least part of the fluid can bypass the measurement mechanism and flow downwards out of the water distribution device; and a switching mechanism arranged at the lower end of the body, wherein the switching mechanism is configured to be rotatable relative to the body so as to open or close the bypass mechanism.

Classes IPC  ?

• E21B 43/20 - Déplacement par l'eau
• E21B 47/00 - Relevés dans les trous de forage ou dans les puits

Abrégé

1162345166126144 alkylene; and M is selected from H or an alkali metal. The compound can be used as a viscosity reducer applied to thickened oil exploitation, and has the effects of strong high-temperature resistance and a good viscosity reduction effect.

Classes IPC  ?

• C07C 309/15 - 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 l'atome d'azote d'au moins un des groupes amino faisant partie de l'un des groupes X étant un hétéro-atome, Y étant un atome quelconque
• E21B 43/22 - Emploi de produits chimiques ou à activité bactérienne

Abrégé

The present invention relates to the technical field of polybenzimidazoles. Disclosed are a polybenzimidazole, a polymer film, a preparation method, and a use. The polybenzimidazole of the present invention comprises a structural unit A1 and a structural unit A2 and optionally comprises a structural unit B1 and a structural unit B2, wherein the structural unit A1 has a structure represented by formula (A1), the structural unit A2 has a structure represented by formula (A2), the structural unit B1 has a structure represented by formula (B1), and the structural unit B2 has a structure represented by formula (B2). The polybenzimidazole of the present invention has relatively high light transmittance and relatively low haze, and the film has relatively high elongation at break.

Classes IPC  ?

• C08G 73/18 - Polybenzimidazoles
• C08J 5/18 - Fabrication de bandes ou de feuilles

Abrégé

Disclosed are a polymer fluid loss agent, a preparation method therefor, and a use thereof. The polymer fluid loss agent comprises a structural unit A represented by formula (1), a structural unit B represented by formula (2), a structural unit C derived from a carboxylic acid monomer, a structural unit D represented by formula (3), and a structural unit E. Structural unit E is derived from a vinyl monomer containing one or more cyclic structures, the cyclic structure is an aromatic ring or a lactam ring, and the cyclic structure is directly connected to a vinyl group. When the cyclic structure is a lactam ring, a nitrogen atom is connected to the vinyl group. The polymer fluid loss agent has peaks 1 and 2 in a gel permeation chromatography spectrum, and the number average molecular weight of peak 1 is 5×105-9×105, and the number average molecular weight of peak 2 is 4×104-9.9×104. The polymer fluid loss agent has low viscosity, causing an initial consistency of a prepared cement slurry system to be no more than 20 Bc, and not affecting on-site construction due to excessive initial consistency. The polymer fluid loss agent can be used for cementing oil and gas wells.

Classes IPC  ?

• C09K 8/487 - Additifs régulant les pertes de fluideAdditifs pour réduire ou empêcher la perte de circulation
• C08F 220/58 - Amides contenant de l'oxygène en plus de l'oxygène de la fonction carbonamide
• C08F 220/56 - AcrylamideMéthacrylamide
• C08F 220/06 - Acide acryliqueAcide méthacryliqueLeurs sels métalliques ou leurs sels d'ammonium
• C08F 226/10 - N-Vinylpyrrolidone
• C08F 226/02 - Copolymères de composés contenant un ou plusieurs radicaux aliphatiques non saturés, chaque radical ne contenant qu'une seule liaison double carbone-carbone et l'un au moins étant terminé par une liaison simple ou double à l'azote ou par un hétérocycle contenant de l'azote par une simple ou une double liaison à l'azote

Abrégé

Disclosed are a method and a system for continuously preparing lactide by step control. The method includes the steps of (1) reacting a lactic acid oligomer and a depolymerization catalyst in a first depolymerization reaction unit to obtain a first liquid-phase material; (2) circulating the first liquid-phase material in a second depolymerization reaction unit for reaction until the molecular weight of the liquid-phase material is higher than 6,000 to obtain a second liquid-phase material; (3) circulating the second liquid-phase material in a third depolymerization reaction unit for reaction until the molecular weight of the liquid-phase material is higher than 10,000; and (4) collecting gas-phase crude lactide from the first depolymerization reaction unit, the second depolymerization reaction unit and the third depolymerization reaction unit, and then purifying same.

Classes IPC  ?

• C07D 319/12 - Dioxanes-1, 4Dioxanes-1, 4 hydrogénés non condensés avec d'autres cycles
• B01J 27/135 - HalogènesLeurs composés avec du titane, du zirconium, de l'hafnium, du germanium, de l'étain ou du plomb
• B01J 31/04 - Catalyseurs contenant des hydrures, des complexes de coordination ou des composés organiques contenant des composés organiques ou des hydrures métalliques contenant des acides carboxyliques ou leurs sels

Abrégé

An adsorbent for trimethylbenzene-based compounds, contains, relative to the total amount of X-type molecular sieve and matrix, 93-99 wt % of X-type molecular sieve and 1-7 wt % of matrix. The matrix is a substance after crystal transformation through in-situ crystallization of clay mineral, the adsorbent is modified with at least one bivalent cation selected from Mg2+, Ca2+, Sr2+, Fe2+, Co2+, Ni2+ and Zn2+ and optionally modified with at least one monovalent cation selected from Li+, Na+, K+, Rb+ and Cs+. A method for preparing the adsorbent, a method of separating trimethylbenzene-based compounds by using the adsorbent, and an apparatus for separating trimethylbenzene-based compounds are provided.

Classes IPC  ?

• B01J 20/18 - Tamis moléculaires zéolitiques synthétiques
• B01D 3/14 - Distillation fractionnée
• B01D 15/14 - Adsorption sélective, p. ex. chromatographie caractérisée par des caractéristiques de structure ou de fonctionnement relatives à l'introduction de l'alimentation dans l'appareil
• B01D 15/18 - Adsorption sélective, p. ex. chromatographie caractérisée par des caractéristiques de structure ou de fonctionnement relatives aux différents types d'écoulement
• B01D 15/20 - Adsorption sélective, p. ex. chromatographie caractérisée par des caractéristiques de structure ou de fonctionnement relatives au conditionnement de la matière adsorbante ou absorbante
• B01J 20/28 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtrationAbsorbants ou adsorbants pour la chromatographieProcédés pour leur préparation, régénération ou réactivation caractérisées par leur forme ou leurs propriétés physiques
• B01J 20/284 - Absorbants ou adsorbants poreux à base d'alumine
• B01J 20/30 - Procédés de préparation, de régénération ou de réactivation
• B01J 20/34 - Régénération ou réactivation
• C07C 7/13 - Purification, séparation ou stabilisation d'hydrocarburesEmploi d'additifs par adsorption, c.-à-d. purification ou séparation d'hydrocarbures à l'aide de solides, p. ex. à l'aide d'échangeurs d'ions par la technique du tamis moléculaire

Abrégé

A high-pressure gas filling and unloading system has a high-pressure gas pipeline for connecting to a gas filling station, a displacement gas pipeline for gas displacement, a plurality of double-channel rotating joints provided in said high-pressure gas pipeline and configured to be rotatable under pressure, and a filling and unloading joint provided at a free end of said high-pressure gas pipeline and comprising a control mechanism. The filling and unloading joint is configured to form a displacement working channel or a filling and unloading working channel therein through the control mechanism. The control mechanism is configured to alternately open the displacement working channel and the filling and unloading working channel, so that the displacement working channel is in communication with the displacement gas pipeline for gas displacement, or the filling and unloading working channel is in communication with the high-pressure gas pipeline for filling and unloading of high-pressure gas.

Classes IPC  ?

• F17C 5/06 - Procédés ou appareils pour remplir des récipients sous pression de gaz liquéfiés, solidifiés ou comprimés pour le remplissage avec des gaz comprimés
• F17C 7/00 - Procédés ou appareils pour vider les gaz liquéfiés, solidifiés ou comprimés contenus dans des récipients sous pression, non couverts par une autre sous-classe

Abrégé

Disclosed in the present invention are a hydrocarbon composition, and a preparation method therefor and the use thereof. The hydrocarbon composition contains a bicyclic aromatic hydrocarbon and an aromatic hydrocarbon with three or more rings, wherein based on the total weight of the hydrocarbon composition, the total content of the aromatic hydrocarbons is greater than or equal to 90 wt%, the content of the bicyclic aromatic hydrocarbon is 60-100 wt%, and the content of the aromatic hydrocarbon with three or more rings is 0-40 wt%; the aromatic hydrocarbons have 35-80 carbon atoms; and the mass ratio NP/IP of n-alkane carbon to iso-alkane carbon is 4.0-6.8. The preparation method for the hydrocarbon composition comprises: (1) reacting an aromatic hydrocarbon oil with an olefin oil in the presence of a catalyst, and subjecting the resulting reaction product to sedimentation separation, so as to obtain an oil phase and a catalyst phase; and (2) washing the oil phase, distilling and cutting the washed oil phase, and refining the resulting vacuum residue fraction, so as to obtain the hydrocarbon composition The hydrocarbon composition of the present invention has a high viscosity, a high viscosity index, a low pour point and a good oxidation stability, and is suitable for being used as a high-quality high-viscosity special oil.

Classes IPC  ?

• C10G 57/00 - Traitement des huiles d'hydrocarbures, en l'absence d'hydrogène, par au moins un procédé de craquage ou de raffinage et au moins un autre procédé de conversion
• C10M 107/00 - Compositions lubrifiantes caractérisées en ce que le matériau de base est un composé macromoléculaire

Abrégé

A process for continuously producing 5-hydroxymethylfurfural and 2,5-furandicarboxylic acid includes (1) in a dual liquid phase reaction medium containing a polar organic solvent and an aqueous halogenated quaternary ammonium salt solution, in the presence of a protonic acid catalyst, subjecting a fructose-based carbohydrate to an intramolecular dehydration reaction to produce an organic phase containing 5-hydroxymethylfurfural; and (2) adding water to the organic phase containing 5-hydroxymethylfurfural obtained in step (1), and in the presence of an oxidation catalyst and oxygen gas, subjecting the 5-hydroxymethylfurfural to an oxidation reaction to produce 2,5-furandicarboxylic acid. The process can continuously produce 5-hydroxymethylfurfural and 2,5-furandicarboxylic acid by starting from fructose-based carbohydrates, avoids the separation and purification of 5-hydroxymethylfurfural during the process of producing 2,5-furandicarboxylic acid.

Classes IPC  ?

• C07D 207/333 - Radicaux substitués par des atomes d'oxygène ou de soufre
• B01J 21/06 - Silicium, titane, zirconium ou hafniumLeurs oxydes ou hydroxydes
• B01J 21/08 - Silice
• B01J 21/18 - Carbone
• B01J 23/46 - Ruthénium, rhodium, osmium ou iridium
• B01J 23/52 - Or
• B01J 35/61 - Surface spécifique
• B01J 37/02 - Imprégnation, revêtement ou précipitation
• B01J 37/08 - Traitement thermique
• C07D 207/34 - Composés hétérocycliques contenant des cycles à cinq chaînons, non condensés avec d'autres cycles, ne comportant qu'un atome d'azote comme unique hétéro-atome du cycle avec uniquement des atomes d'hydrogène ou de carbone liés directement à l'atome d'azote du cycle comportant deux liaisons doubles entre chaînons cycliques ou entre chaînons cycliques et chaînons non cycliques avec des hétéro-atomes ou avec des atomes de carbone comportant trois liaisons à des hétéro-atomes, avec au plus une liaison à un halogène, p. ex. radicaux ester ou nitrile, liés directement aux atomes de carbone du cycle

Abrégé

A composite material includes a plurality of polypropylene sheet layer unit groups that are sequentially stacked; each polypropylene sheet layer unit group comprises at least one of the same or different polypropylene sheet layer units, the structure of each polypropylene sheet layer unit is BiAiB′i; the structure of the polypropylene composite material is . . . i-th group, . . . second group, first group, second group, . . . i-th group, . . . ; the melting point of polypropylene composition Ai is greater than the melting point of polypropylene compositions Bi and B′i; and the average value of the melting points of all outer layers in the i-th group is greater than the average value of the melting points of all outer layers in an (i-1)th group. The polypropylene composite material has a very good tensile property and very good impact resistance, and also has good interlayer stripping strength at a relatively low hot-pressing temperature.

Classes IPC  ?

• B32B 27/32 - Produits stratifiés composés essentiellement de résine synthétique comprenant des polyoléfines
• B32B 7/02 - Propriétés physiques, chimiques ou physicochimiques
• B32B 7/12 - Liaison entre couches utilisant des adhésifs interposés ou des matériaux interposés ayant des propriétés adhésives
• B32B 37/10 - Procédés ou dispositifs pour la stratification, p. ex. par polymérisation ou par liaison à l'aide d'ultrasons caractérisés par la technique de pressage, p. ex. faisant usage de l'action directe du vide ou d'un fluide sous pression
• B32B 38/00 - Opérations auxiliaires liées aux procédés de stratification

Abrégé

Methods and systems for determining in-situ stresses in anisotropic rocks are presented. The methods consider both anisotropic rock properties, geothermal and tectonic effects. They calculates in-situ stresses for subsurface rocks with anisotropies and non-isothermal effects, so that they can be applied to geothermal energy and geo-energy. Horizontal stresses in the vertical transverse isotropy (VTI) rock and in the horizontal transverse isotropy (HTI) rock are obtained for calculating in-situ stresses in naturally fractured rocks. Compared with the conventional isotropic model, the method applicable to VTI rocks predicts a higher minimum horizontal stress and a higher maximum horizontal stress, which is suitable for shales and other laminated formations. The method applicable to HTI rocks gives a lower minimum horizontal stress than the conventional model. Geothermal temperature effects are also integrated into the methods so that the methods are applied to geothermal energy.

Classes IPC  ?

• G01N 33/24 - Matériaux de la terre
• E21B 49/00 - Test pour déterminer la nature des parois des trous de forageEssais de couchesProcédés ou appareils pour prélever des échantillons du terrain ou de fluides en provenance des puits, spécialement adaptés au forage du sol ou aux puits
• E21B 49/02 - Test pour déterminer la nature des parois des trous de forageEssais de couchesProcédés ou appareils pour prélever des échantillons du terrain ou de fluides en provenance des puits, spécialement adaptés au forage du sol ou aux puits par prélèvements mécaniques d'échantillons du terrain

Abrégé

The present invention relates to the technical fields of membrane separation and electrochemistry. Disclosed are an anion exchange membrane, a preparation method therefor and the use thereof, an integrated electrode and a manufacturing method therefor, and an electrosorptive deionization device. The anion exchange membrane comprises a plurality of polyphenylene oxide molecular chains having a structure shown as formula I and a plurality of molecular chains having a structure shown as formula II, wherein Q1 or Q2 is independently a halogen atom or is linked to the molecular chain having the structure shown as formula II to form a bond. The anion exchange membrane uses polyphenylene oxide as a main chain backbone, and the backbone contains a cationic group and long-carbon-chain molecular chains linked to the polyphenylene oxide backbone, such that the anion exchange membrane has excellent thermal stability while achieving high OH- conductivity, stability and excellent durability. In addition, the integrated electrode comprising the anion exchange membrane can remarkably increase the ion transport rate and improve the saturated adsorption capacity of an electrosorption electrode, and when being used in electrosorptive deionization devices, the integrated electrode can remarkably improve the desalination performance of the electrosorptive deionization devices.

Classes IPC  ?

• B01J 41/13 - Composés macromoléculaires obtenus autrement que par des réactions ne faisant intervenir que des liaisons carbone-carbone non saturées
• C02F 1/42 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par échange d'ions
• C02F 1/469 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques par séparation électrochimique, p. ex. par électro-osmose, électrodialyse, électrophorèse
• C08G 65/48 - Polymères modifiés par post-traitement chimique

Abrégé

33. The active component of the catalyst of the present invention contains a high content of nickel. When used for the second-stage hydrogenation of cracked gasoline, the catalyst can be suitable for treating a raw material having a higher diene content, shows relatively strong monoolefin saturation performance and desulfurization and denitrification activity, can effectively inhibit carbon deposition, and has high stability. Therefore, the catalyst of the present invention is particularly suitable for use in industrial production of the second-stage hydrogenation of cracked gasoline or a fraction thereof.

Classes IPC  ?

• C10G 45/08 - 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 caractérisé par le catalyseur utilisé contenant du nickel ou du cobalt, ou leurs composés en combinaison avec du chrome, du molybdène ou du tungstène, ou leurs composés
• B01J 23/883 - Molybdène et nickel
• B01J 23/02 - Catalyseurs contenant des métaux, oxydes ou hydroxydes métalliques non prévus dans le groupe des métaux alcalins ou alcalino-terreux ou du béryllium
• B01J 21/12 - Silice et alumine
• B01J 27/185 - PhosphoreSes composés avec des métaux du groupe du fer ou avec des métaux du groupe du platine
• B01J 27/186 - PhosphoreSes composés avec de l'arsenic, de l'antimoine, du bismuth, du vanadium, du niobium, du tantale, du polonium, du chrome, du molybdène, du tungstène, du manganèse, du technétium ou du rhénium

Abrégé

An interconnectable downhole instrument package has a downhole instrument disposed in a pressure housing; a male connector assembly connecting to a first end of the downhole instrument; and a female connector assembly connecting to a second end of the downhole instrument. The male connector assembly has a first housing and a male rotatable connector that are connected together, while the female connector assembly has a second housing and a female rotatable connector. The second housing is adapted to receive the female rotatable connector.

Classes IPC  ?

• E21B 17/02 - AccouplementsJoints
• E21B 47/06 - Mesure de la température ou de la pression
• E21B 47/13 - Moyens pour la transmission de signaux de mesure ou signaux de commande du puits vers la surface, ou de la surface vers le puits, p. ex. pour la diagraphie pendant le forage par énergie électromagnétique, p. ex. gammes de fréquence radio
• H01R 39/64 - Dispositifs pour le captage ininterrompu du courant

Abrégé

A composition for preparing a polycaprolactone shape memory material, and a polycaprolactone shape memory material, a preparation method therefor, and a use thereof are provided. The material contains a plurality of modified polyrotaxane macromolecular chains, and a plurality of composite macromolecular chains connected to different modified polyrotaxane macromolecular chains, wherein each of the composite macromolecular chains comprises at least two segments of polycaprolactone macromolecular chains, a reversible linking group between different polycaprolactone macromolecular chains, and a linking modification group for linking cyclodextrin-derived cyclic structures comprised in the polycaprolactone macromolecular chains and the modified polyrotaxane macromolecular chains. The reversible linking group is a photo-reversible linking group or a thermally reversible linking group. The network topology defect of a polymer is adjusted to improve the toughness of the shape memory material to improves its designability and solid remoldability.

Classes IPC  ?

• C08G 63/91 - Polymères modifiés par post-traitement chimique
• C08G 63/82 - Procédés de préparation caractérisés par le catalyseur utilisé
• C08G 63/83 - Métaux alcalins, métaux alcalino-terreux, béryllium, magnésium, cuivre, argent, or, zinc, cadmium, mercure, manganèse ou leurs composés
• C08G 63/85 - Germanium, étain, plomb, arsenic, antimoine, bismuth, titane, zirconium, hafnium, vanadium, niobium, tantale ou leurs composés
• C08G 83/00 - Composés macromoléculaires non prévus dans les groupes
• C08J 3/24 - Réticulation, p. ex. vulcanisation, de macromolécules

Abrégé

An olefin polymerization catalyst component, a catalyst system, a prepolymerization catalyst composition and an olefin polymerization method are provided. The catalyst component contains magnesium, titanium, halogen, and an internal electron donor. The internal electron donor includes a compound A, a compound B and a compound C. The compound A is selected from a hydroxybenzoyl compound represented by formula (I), the compound B is selected from one or more of an ester compound other than the compound A and an ether compound, and the compound C is selected from an alkoxysilane represented by formula RnSi(OR6)4-n. A content of the compound A may be zero. The catalyst system contains the catalyst component and a co-catalyst component or a reaction product of the two, or a prepolymerization catalyst composition prepared by further prepolymerization is used for olefin copolymerization.

Classes IPC  ?

• C08F 10/06 - Propène

Abrégé

A ZSM-5 molecular sieve, a preparation method therefor and an application thereof, a hydrotreatment catalyst, a hydrodewaxing catalyst, and applications thereof are provided. The ZSM-5 molecular sieve has a pyridine infrared total acid amount being 0.03-0.40 mmol/g, and a di-tert-butylpyridine infrared total acid amount being 0.002-0.02 mmol/g; and the mesoporous pore volume of the ZSM-5 molecular sieve accounts for 10-20% of the total pore volume, and/or in the ZSM-5 molecular sieve, the mesoporous pore volume of 2-10 nm accounts for 70-95% of the total mesoporous pore volume. The molecular sieve can be used as a carrier or an active component, for example, the hydrodewaxing catalyst prepared from the ZSM-5 molecular sieve is used for oil product treatment, such that the quality and the yield of a low-condensation-point oil product can be improved.

Classes IPC  ?

• C01B 39/38 - Type ZSM-5
• B01J 29/46 - Métaux du groupe du fer ou cuivre

Abrégé

A hydrogenation catalyst and a preparation method therefor and the use thereof, and a hydrogenation reaction method for oil products are presented. The hydrogenation catalyst is a sulfurized hydrogenation catalyst and comprises a carrier, a molecular sieve and an active component, wherein the active component comprises at least one of group VIII metal elements and at least one of group VIB metal elements, and is characterized by using a TEM-EDS method. On the basis of the silicon element, the ratio of the amount of the molecular sieve directly acting on a group VIB metal sulfide to the total amount of the molecular sieve is 60-100%. The hydrogenation catalyst provided in the present invention can control a polycyclic aromatic hydrocarbon to realize ring opening without chain scission, generating a monocyclic aromatic hydrocarbon with a long-branched chain, which can be used as both an ethylene cracking raw material and a diesel product.

Classes IPC  ?

• B01J 37/02 - Imprégnation, revêtement ou précipitation
• B01J 21/04 - Alumine
• B01J 29/16 - Zéolites aluminosilicates cristallinesLeurs composés isomorphes du type faujasite, p. ex. du type X ou Y contenant de l'arsenic, de l'antimoine, du bismuth, du vanadium, du niobium, du tantale, du polonium, du chrome, du molybdène, du tungstène, du manganèse, du technétium ou du rhénium
• B01J 29/48 - Zéolites aluminosilicates cristallinesLeurs composés isomorphes du type pentasil, p. ex. types ZSM-5, ZSM-8 ou ZSM-11 contenant de l'arsenic, de l'antimoine, du bismuth, du vanadium, du niobium, du tantale, du polonium, du chrome, du molybdène, du tungstène, du manganèse, du technétium ou du rhénium
• B01J 29/78 - Zéolites aluminosilicates cristallinesLeurs composés isomorphes de types caractérisés par leur structure spécifique non prévus dans les groupes contenant de l'arsenic, de l'antimoine, du bismuth, du vanadium, du niobium, du tantale, du polonium, du chrome, du molybdène, du tungstène, du manganèse, du technétium ou du rhénium
• B01J 37/00 - Procédés de préparation des catalyseurs, en généralProcédés d'activation des catalyseurs, en général
• B01J 37/04 - Mélange
• B01J 37/06 - Lavage
• B01J 37/10 - Traitement thermique en présence d'eau, p. ex. de vapeur d'eau
• B01J 37/20 - Sulfuration
• C07C 5/11 - Hydrogénation partielle

Abrégé

A free radical solution polymerization process, a polymer and a use thereof are provided. The polymerization process includes the steps of introducing micro-nano bubbles of gas B into an aqueous solution of vinyl monomer(s), and initiating the free radical solution polymerization of the vinyl monomer(s) by the free radicals generated after the cavitation of the micro-nano bubbles to prepare a polymer. The micro-nano bubbles can generate free radicals through cavitation without an external stimulus, thus initiating the free radical solution polymerization of the vinyl monomer(s) by the cavitation of the micro-nano bubbles.

Classes IPC  ?

• C08F 2/10 - Solvant aqueux
• C08F 2/18 - Polymérisation en suspension

Abrégé

A separation membrane, a preparation method therefor and a use thereof in magnesium and lithium separation are provided. The separation membrane includes, in sequence, a base material layer, a porous support layer, a polyamide layer and a modification layer. Cross-linked polymers forming the modification layer has structural units provided by polyphenols and polyamines, at least some of the structural units provided by the polyphenols are connected to the polyamide layer via ortho positions of phenolic hydroxyl groups. The preparation method includes sequentially preparing the porous support layer, the polyamide layer and the modification layer on the base material layer. The method of preparing the modification layer includes under a first pressure, bringing one side of the polyamide layer into first contact with the polyphenol solution; then under a second pressure, bringing one side of the polyamide layer into second contact with the polyamine solution, to complete a self-assembly reaction.

Classes IPC  ?

• B01D 71/60 - Polyamines
• B01D 67/00 - Procédés spécialement adaptés à la fabrication de membranes semi-perméables destinées aux procédés ou aux appareils de séparation
• B01D 69/10 - Membranes sur supportSupports pour membranes
• B01D 69/12 - Membranes compositesMembranes ultraminces
• B01D 71/48 - Polyesters

Abrégé

A metallocene complex and a preparation method therefor, a catalyst composition, an olefin polymerization method and an olefin polymer are provided. The metallocene complex has a structure of formula I. The catalyst composition containing the metallocene complex shows an improved catalytic activity, and also has relatively high structural regularity control capability for a conjugated diene structural unit and a relatively high capability for copolymerizing ethylene and conjugated diene.

Classes IPC  ?

• C08F 36/06 - Butadiène

Abrégé

The present application belongs to the field of oil and gas exploration. Provided are a positive mud pulse encoding method, a decoding method, a device and a system. The encoding method comprises: determining the number of bits of binary data to be encoded; in response to the number of bits being greater than a threshold value, splitting the binary data into at least two pieces of sub-binary data on the basis of a splitting rule; on the basis of the number of bits and a numerical value of each piece of the sub-binary data, constructing a corresponding sub-data frame for representing said sub-binary data; and on the basis of the sub-data frames, generating a positive mud pulse signal. Further provided in the present application are the decoding method corresponding to the encoding method, corresponding encoding and decoding devices and a system. Representing different binary numbers on the basis of the combination of features such as the number of pulses, pulse positions, pulse widths and the splitting rule can reduce the waste of transmission bandwidth resources, thereby significantly increasing the transmission rate of positive pulse signals and reducing the power consumption of mud pulse generators.

Classes IPC  ?

• H04B 14/04 - Systèmes de transmission non caractérisés par le milieu utilisé pour la transmission caractérisés par l'utilisation de la modulation par impulsions utilisant la modulation par impulsions codées

Produits et services

Downloadable computer software for use in database management, use as a spreadsheet, word processing, processing and interpretation of well-log curves, geomechanical and in-situ stress modeling including data calculation, simulation and analysis; Downloadable computer software designed to be deployed on web servers for use in database management, use as a spreadsheet, word processing, processing and interpretation of well-log curves, geomechanical and in-situ stress modeling including data calculation, simulation and analysis; Downloadable computer software using artificial intelligence (AI) for use in software development, machine learning, facial and speech recognition, and processing and interpretation of well-log curves, geomechanical and in-situ stress modeling including data calculation, simulation and analysis; Recorded computer software for use in database management, use as a spreadsheet, word processing, processing and interpretation of well-log curves, geomechanical and in-situ stress modeling including data calculation, simulation and analysis; Recorded computer software using artificial intelligence (AI) for use in software development, machine learning, facial and speech recognition, and processing and interpretation of well-log curves, geomechanical and in-situ stress modeling including data calculation, simulation and analysis

Abrégé

An iridium-based catalyst, wherein iridium in the catalyst is in the form of crystalline iridium dioxide. Relative to the catalyst as a whole, the content of the iridium element by mass fraction is greater than 70%, and the apparent mass-to-volume ratio of the catalyst is not higher than 0.55 g/cm3. The catalyst has a large specific surface area, a high porosity, and a low apparent mass-to-volume ratio, and therefore has excellent mass transfer performance and apparent catalytic activity. A three-dimensional porous structure of the catalyst can improve the utilization rate of the iridium element, so that the loading capacity of iridium in a membrane electrode is reduced, and the catalyst has excellent stability. The provided preparation method is simple, convenient, and highly economical.

Classes IPC  ?

• B01J 23/46 - Ruthénium, rhodium, osmium ou iridium
• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• C25B 11/091 - Électrodes comportant des électro-catalyseurs sur un substrat ou un support caractérisées par le matériau électro-catalytique formé d’au moins un élément catalytique et d’au moins un composé catalytiqueÉlectrodes comportant des électro-catalyseurs sur un substrat ou un support caractérisées par le matériau électro-catalytique formé de plusieurs éléments catalytiques ou composés catalytiques

Abrégé

The present invention relates to an iridium-based catalyst. The catalyst comprises elemental iridium and optionally present iridium oxide. With respect to the entire catalyst, the content of iridium is 70% or above in terms of mass fraction, and the apparent mass-volume ratio of the catalyst is not higher than 0.55 g/cm3. The catalyst has a large specific surface area, a high porosity and a low apparent mass-volume ratio, and therefore has excellent mass transfer performance and an apparent catalytic activity. A three-dimensional porous structure of the catalyst can improve the utilization rate of iridium, such that the loading of iridium in a membrane electrode is reduced, and the catalyst has excellent stability. The preparation method for the catalyst is simple and convenient, and has a relatively high economy.

Classes IPC  ?

• C25B 11/091 - Électrodes comportant des électro-catalyseurs sur un substrat ou un support caractérisées par le matériau électro-catalytique formé d’au moins un élément catalytique et d’au moins un composé catalytiqueÉlectrodes comportant des électro-catalyseurs sur un substrat ou un support caractérisées par le matériau électro-catalytique formé de plusieurs éléments catalytiques ou composés catalytiques
• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• C25B 9/19 - Cellules comprenant des électrodes fixes de dimensions stablesAssemblages de leurs éléments de structure avec des diaphragmes

Abrégé

An iridium-based catalyst. Relative to the total mass of the catalyst, the mass percentage content of an iridium element is 70% or higher. The apparent density of the catalyst is not higher than 0.55 g/cm3. The catalyst has a large specific surface area, high porosity and low apparent density, and therefore has excellent mass transfer performance and apparent catalytic activity. A three-dimensional porous structure of the catalyst can improve the utilization rate of the iridium element, thereby reducing the loading of iridium in a membrane electrode, and the catalyst has excellent stability. A preparation method provided is simple and convenient, and has relatively high economic efficiency.

Classes IPC  ?

• B01J 23/46 - Ruthénium, rhodium, osmium ou iridium
• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• C25B 11/091 - Électrodes comportant des électro-catalyseurs sur un substrat ou un support caractérisées par le matériau électro-catalytique formé d’au moins un élément catalytique et d’au moins un composé catalytiqueÉlectrodes comportant des électro-catalyseurs sur un substrat ou un support caractérisées par le matériau électro-catalytique formé de plusieurs éléments catalytiques ou composés catalytiques

Abrégé

1002002,G002,G is the peak intensity of the (002) peak of internal standard graphite in the XRD pattern, and the weight ratio of the carbon material to the graphite during test is 1:10. The carbon material provided by the present invention has a remarkably improved proportion of slope capacity, and slope sections have fast ion transport kinetics and high potential, thus facilitating improvement of rate capacity and cycle performance.

Classes IPC  ?

• C01B 32/312 - Préparation
• C01B 32/354 - Post-traitement
• H01M 4/587 - Matériau carboné, p. ex. composés au graphite d'intercalation ou CFx pour insérer ou intercaler des métaux légers
• H01M 10/054 - Accumulateurs à insertion ou intercalation de métaux autres que le lithium, p. ex. au magnésium ou à l'aluminium
• H01M 4/04 - Procédés de fabrication en général

Abrégé

22 generated at the anode.

Classes IPC  ?

• C25B 3/03 - Hydrocarbures acycliques ou cycliques
• C25B 3/26 - Réduction du dioxyde de carbone
• C25B 3/25 - Réduction
• C25B 3/00 - Production électrolytique de composés organiques
• C25B 1/23 - Oxyde de carbone ou gaz de synthèse
• C25B 1/00 - Production électrolytique de composés inorganiques ou de non-métaux
• C25B 11/031 - Électrodes poreuses
• C25B 11/03 - ÉlectrodesLeur fabrication non prévue ailleurs caractérisées par la configuration ou la forme perforées ou foraminées
• C25B 11/093 - Électrodes comportant des électro-catalyseurs sur un substrat ou un support caractérisées par le matériau électro-catalytique formé d’au moins un élément catalytique et d’au moins un composé catalytiqueÉlectrodes comportant des électro-catalyseurs sur un substrat ou un support caractérisées par le matériau électro-catalytique formé de plusieurs éléments catalytiques ou composés catalytiques au moins un métal noble ou oxyde de métal noble et au moins un oxyde d’un métal non noble
• C25B 11/069 - Électrodes comportant des électro-catalyseurs sur un substrat ou un support caractérisées par le matériau du substrat ou du support formé d’un élément et d’au moins un composéÉlectrodes comportant des électro-catalyseurs sur un substrat ou un support caractérisées par le matériau du substrat ou du support formé de plusieurs composés

Abrégé

The present invention provides a method for producing olefins by catalytic dehydrogenation of alkanes and an apparatus. The apparatus comprises a reaction unit, a regeneration unit, and a product separation unit; the reaction unit comprises a pre-lift zone, an oil agent contact zone, a reaction zone, a product quenching zone, a reactor outlet zone, an oil agent separation zone, and a stripping zone. The oil agent contact zone is provided with a feeding distributor and a catalyst distributor, and an oil agent contact space is formed between the feeding distributor and the catalyst distributor, enhancing countercurrent contact between an alkane and a catalyst, and better facilitating the initiation of a catalytic dehydrogenation reaction. By bringing an alkane feedstock into contact with a catalyst and then leveraging the shape and parameters of the reactor, the present invention provides a proper reaction environment for a catalytic dehydrogenation reaction, thereby facilitating the catalytic dehydrogenation reaction, and improving the alkane conversion rate. In addition, the method and the apparatus of the present invention allow for alkane dehydrogenation reactions to be conducted under negative pressure, resulting in good safety and further improving alkane conversion rates and olefin selectivity.

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 3/02 - Dispositifs d'alimentation ou d'évacuation appropriés
• C07C 11/02 - Alcènes

Abrégé

A catalyst regeneration method is suitable for use in a fluidized catalytic cracking unit that includes a catalytic cracking reactor and a catalyst regenerator. The regeneration method includes the steps of: 1) providing a bio-based liquid phase fuel; 2) introducing the bio-based liquid phase fuel into a catalyst regenerator or a stripping section of the catalytic cracking reactor; 3) introducing an oxygen-containing gas into the catalyst regenerator; and 4) sending the spent catalyst from the catalytic cracking reactor to the catalyst regenerator, where the spent catalyst is contacted with the bio-based liquid phase fuel or the residue thereof and oxygen-containing gas to carry out coke burning regeneration. This method can greatly reduce the carbon emission of the catalytic cracking unit and can also provide energy for other process units and also converts part of the bio-based liquid phase fuel into chemicals.

Classes IPC  ?

• B01J 29/90 - Régénération ou réactivation
• B01J 38/02 - Traitement thermique
• B01J 38/14 - Traitement avec un gaz contenant de l'oxygène libre en réglant la teneur en oxygène dans le gaz d'oxydation
• B01J 38/20 - Plusieurs étapes distinctes d'oxydation
• B01J 38/32 - Chauffage ou refroidissement indirect de la substance à l'intérieur de la zone de régénération ou avant l'entrée dans la zone de régénération
• C10G 3/00 - Production de mélanges liquides d'hydrocarbures à partir de matières organiques contenant de l'oxygène, p. ex. huiles, acides gras
• C10G 11/18 - Craquage catalytique, en l'absence d'hydrogène, des huiles d'hydrocarbures avec catalyseurs solides mobiles préchauffés selon la technique du "lit fluidisé"

Abrégé

A catalyst regeneration method is suitable for a fluidized catalytic cracking unit having a catalytic cracking reactor and a catalyst regenerator. The regeneration method has the following steps: 1) providing a gaseous biomass-derived fuel containing hydrogen and/or methane; 2) directly feeding the gaseous fuel into the catalyst regenerator without separation and purification; 3) introducing an oxygen-containing gas into the catalyst regenerator; and 4) feeding the catalyst to be regenerated from the catalytic cracking reactor into the catalyst regenerator, where it contacts the gaseous fuel and the oxygen-containing gas for coke-burning and regeneration. The method introduces a gaseous biomass-derived fuel as energy supply in the catalyst regeneration process to replace fossil fuels, fundamentally changing the energy source of the catalytic cracking unit, significantly reducing the carbon emissions of the catalytic cracking unit, realizing the recycling of carbon elements, and supplying energy to other process units.

Classes IPC  ?

• C10G 11/18 - Craquage catalytique, en l'absence d'hydrogène, des huiles d'hydrocarbures avec catalyseurs solides mobiles préchauffés selon la technique du "lit fluidisé"

Abrégé

The present invention relates to the field of medical repair materials and particularly to a double-crosslinked hydrogel composite material, a preparation method therefor, and use thereof. The double-crosslinked hydrogel composite material comprises a physical-chemical double-crosslinked copolymer formed by reacting at least one type of acrylic monomer and at least one type of zwitterionic monomer in the presence of nanoparticles and a crosslinking agent. The double-crosslinked hydrogel composite material of the present invention has the characteristics of high mechanical strength, high adhesion strength, and swelling resistance, is low in cost, and features a preparation process that is simple and rapid and easy to regulate. Therefore, the material has very high application value.

Classes IPC  ?

• A61L 27/16 - Matériaux macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
• A61L 27/52 - Hydrogels ou hydrocolloïdes
• A61L 27/42 - Matériaux composites, c.-à-d. en couches ou contenant un matériau dispersé dans une matrice constituée d'un matériau analogue ou différent comportant une matrice inorganique
• A61L 27/44 - Matériaux composites, c.-à-d. en couches ou contenant un matériau dispersé dans une matrice constituée d'un matériau analogue ou différent comportant une matrice macromoléculaire

Abrégé

The present invention relates to a catalytic conversion method and system. The method comprises the following steps: bringing a heavy hydrocarbon raw material into contact with a first regenerated catalyst in a first reactor so as to undergo a first catalytic conversion reaction, and performing first separation on a first material obtained after the first catalytic conversion reaction, so as to obtain a first catalyst to be regenerated and a first reaction oil gas; feeding a fresh second catalyst into a second reactor, bringing a light hydrocarbon raw material into contact with the second catalyst in the second reactor to undergo a second catalytic conversion reaction, so as to obtain a second material containing the second catalyst and a reaction product, and performing second separation on the second material, so as to obtain a second catalyst to be regenerated and a second reaction oil gas; feeding the first catalyst to be regenerated into a first regenerator to undergo regeneration and feeding the fresh first catalyst into the first regenerator, so as to obtain the first regenerated catalyst, and returning same to the first reactor; and introducing at least part of the second catalyst to be regenerated into the first reactor. The method of the present invention can improve the yields of ethylene and propylene.

Classes IPC  ?

• C10G 65/18 - Traitement des huiles d'hydrocarbures, uniquement par plusieurs procédés d'hydrotraitement uniquement par plusieurs étapes en parallèle ne comprenant que des étapes de craquage

Abrégé

The present invention belongs to the field of catalytic cracking, and provides a catalyst, more specifically, a catalytic cracking catalyst for mass production of propylene and butene from wax oil distillate and a preparation method therefor. The catalyst comprises 45-80 wt% of a matrix and 20-55 wt% of a molecular sieve, wherein the molecular sieve comprises an MFI type molecular sieve and an optional FAU type molecular sieve, and the MFI type molecular sieve is newly developed particles, and is a ZSM-5 molecular sieve with higher hydrothermal stability, in which secondary particles are formed by the aggregation of primary particles. The catalyst is used for catalytic cracking of wax oil distillate, exhibits good hydrothermal stability and catalytic effect, and can significantly improve the yield of ethylene and propylene.

Classes IPC  ?

• C01B 39/38 - Type ZSM-5
• B01J 29/40 - Zéolites aluminosilicates cristallinesLeurs composés isomorphes du type pentasil, p. ex. types ZSM-5, ZSM-8 ou ZSM-11

Abrégé

Provided in the present invention are a method and system for producing a light aromatic hydrocarbon. A catalytic cracking cycle oil undergoes a two-stage hydrogenation treatment in the presence of hydrogen and a hydrogenation catalyst, and the hydrogenated oil gas passes through a first rectification tower device to obtain an overhead light fraction, a light aromatic hydrocarbon-rich fraction, a first recycle fraction having a specific distillation range, and a second recycle fraction having a specific distillation range; and the first recycle fraction enters a first reaction zone of a catalytic cracking device for a catalytic cracking reaction, and the second recycle fraction enters a second reaction zone of the catalytic cracking device for a reaction or returns to a second section of the hydrogenation treatment for recycling. Furthermore, a reaction product obtained from catalytic cracking is separated by a second rectification tower device to obtain a first fraction oil gas, a second fraction oil, and an oil slurry, the second fraction oil returns to a first section of the hydrogenation treatment, and optionally, the first fraction oil gas along with the hydrogenated oil gas enters the first rectification tower device for separation. In the present invention, a catalytic conversion product and a hydrogenation product are effectively separated in the same separation system and then undergo catalytic conversion in different zones, thereby saving the separation equipment and device investment while improving the yield of the produced light aromatic hydrocarbon.

Classes IPC  ?

• C10G 69/04 - Traitement des huiles d'hydrocarbures par au moins un procédé d'hydrotraitement et au moins un autre procédé de conversion uniquement par plusieurs étapes en série comprenant au moins une étape de craquage catalytique en l'absence d'hydrogène
• C10G 11/14 - Craquage catalytique, en l'absence d'hydrogène, des huiles d'hydrocarbures avec catalyseurs solides mobiles préchauffés
• 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

An Sn-Y type molecular sieve, a preparation method therefor and the use thereof, and an oxidation reaction method for a cyclic ketone. The surface silicon/tin molar ratio of the molecular sieve is 50-70, and the bulk silicon/tin molar ratio is 200-300; with respect to the Sn-Y type molecular sieve, Sn is mainly intensively distributed on the outer surface of a Y molecular sieve, thus achieving better catalytic performance for the Baeyer-Villiger oxidation reaction of a cyclic ketone.

Classes IPC  ?

• B01J 29/08 - Zéolites aluminosilicates cristallinesLeurs composés isomorphes du type faujasite, p. ex. du type X ou Y
• C07D 313/04 - Cycles à sept chaînons non condensés avec d'autres cycles

Abrégé

A Sn-Beta molecular sieve, a preparation method therefor and a use thereof, and an oxidation reaction method for a cyclic ketone. The silicon-to-tin molar ratio of the molecular sieve is 8-15, and the molecular sieve has a Lewis acid content of 600-900 μmol/g as measured by pyridine infrared spectroscopy at a desorption temperature of 200°C. The Sn-Beta molecular sieve has high Sn content and high Lewis acid content, and has excellent catalytic performance for Baeyer-Villiger oxidation reaction of cyclic ketones.

Classes IPC  ?

• C01B 39/48 - Autres types caractérisés par leur diagramme de diffraction des rayons X et par leur composition définie utilisant au moins un agent structurant organique
• B01J 29/70 - Zéolites aluminosilicates cristallinesLeurs composés isomorphes de types caractérisés par leur structure spécifique non prévus dans les groupes
• C07D 313/04 - Cycles à sept chaînons non condensés avec d'autres cycles

Abrégé

10509090 is equal to 150-250 μm. The preparation method for the degradable nanomaterial comprises: subjecting a nanomicrosphere lactide raw material to a hydroxylation treatment and an activation treatment, and then mixing and bringing same into contact with a fluorocarbon-chain-containing surfactant. The degradable nanomaterial has excellent degradation performance at relatively low temperatures, which satisfies low-temperature construction requirements, and can effectively block pores having various sizes when used in a fracturing fluid system.

Classes IPC  ?

• C09K 8/68 - Compositions à base d'eau ou de solvants polaires contenant des composés organiques

Abrégé

10509090 is 20-90 μm. The preparation method for the acid-soluble nano material comprises: carrying out hydroxylation treatment on an unsaturated fatty monoacid, and carrying out a contact reaction between the hydroxylated unsaturated fatty monoacid and a nano carbonate raw material; and carrying out amination treatment on a product of the contact reaction, wherein the nano carbonate raw material contains a nano calcium carbonate raw material and/or a nano magnesium carbonate raw material. The acid-soluble nano material has the dissolution performance meeting fracturing construction requirements, can realize multi-size plugging in a compact reservoir and improve the plugging rate of a pore throat, and can enter the pore throat for adsorption and space occupation to reduce the retention amount of the fracturing fluid, thereby reducing damage to the reservoir.

Classes IPC  ?

• C09K 8/66 - Compositions à base d'eau ou de solvants polaires
• C09K 8/68 - Compositions à base d'eau ou de solvants polaires contenant des composés organiques
• C09K 8/506 - Compositions à base d'eau ou de solvants polaires contenant des composés organiques
• C01F 11/18 - Carbonates

Abrégé

A metal pollution-resistant catalyst, its preparation and application are provided. The catalyst consists of a first alumina comprising a modified metal Mn and a second alumina. The ratio of the integral areas of the two peaks at 3670 cm−1 and 3730 cm−1 in the infrared spectroscopy of the catalyst is 1-5:1. The method for preparing the catalyst comprises a step of forming a slurry of an acid-soluble first alumina, a non-acid-soluble second alumina, water and optionally acid and a modified metal oxide. The metal pollution-resistant catalyst and the particle containing a catalytic cracking active component form a catalytic cracking catalyst, useful for catalytic cracking of hydrocarbon oil containing pollution metals. In the case of nickel pollution, catalytic cracking of hydrocarbon oil can reduce the ratio of hydrogen to methane.

Classes IPC  ?

• B01J 37/02 - Imprégnation, revêtement ou précipitation
• B01J 23/34 - Manganèse
• B01J 35/40 - Catalyseurs caractérisés par leur forme ou leurs propriétés physiques, en général caractérisés par leurs dimensions, p. ex. granulométrie
• B01J 35/51 - Sphères
• B01J 35/61 - Surface spécifique
• B01J 35/63 - Volume des pores
• B01J 37/00 - Procédés de préparation des catalyseurs, en généralProcédés d'activation des catalyseurs, en général
• B01J 37/08 - Traitement thermique
• C10G 11/18 - Craquage catalytique, en l'absence d'hydrogène, des huiles d'hydrocarbures avec catalyseurs solides mobiles préchauffés selon la technique du "lit fluidisé"

Abrégé

The present invention relates to the fracturing technology, and in particular to a nano-material-containing composition and a preparation method therefor and a use thereof, and a fracturing fluid. The composition comprises a nano material and a solvent. The hydrodynamic particle size of molecular aggregates of the composition satisfies: D10<30 μm, D50=50-150 μm, and D90=150-300 μm. The preparation method for the composition comprises: after hydroxylation of gas-phase nanosilicon dioxide in a solvent, making gas-phase nanosilicon dioxide come into contact with a monomer represented by formula (II) in the presence of an initiator, and activating the resulting product and then mixing same with a fluorocarbon surfactant. Also provided are a use of the composition in a fracturing fluid and a fracturing fluid containing the composition. The composition can facilitate rapid flowback of a fracturing fluid from a reservoir, thereby reducing the damage to the reservoir.

Classes IPC  ?

• C09K 8/66 - Compositions à base d'eau ou de solvants polaires
• C09K 8/504 - Compositions à base d'eau ou de solvants polaires
• C09K 8/03 - Additifs spécifiques à usage général dans les compositions pour le forage des puits

Abrégé

Disclosed is a catalytic packing module suitable for a catalytic rectification device, sequentially comprising, from inside to outside, a solid catalyst layer at the center, a first mesh layer wrapping the catalyst layer, an inert packing layer wrapping the first mesh layer, and a second mesh layer wrapping the inert packing layer. The catalytic packing module uses a special layered structure design, thereby ensuing sufficient contact between reaction materials and a catalyst, and the catalytic packing module further has the advantages of convenient loading/unloading, stable operation, minimal catalyst attrition, flexibility to adjust the use amount of the catalyst and the like.

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 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 19/32 - Éléments de remplissage en forme de grille ou d'éléments composés de plusieurs pièces pour constituer une unité ou un module dans l'appareil de transfert de chaleur ou de matière

Abrégé

The present invention relates to an SCM-3 molecular sieve, a preparation method therefor, and a use thereof. The X-ray diffraction spectrogram of the SCM-53 molecular sieve provided by the present invention comprises a diffraction peak at 2θ of 4.292°±0.40°, and optionally further comprises one or more of diffraction peaks at 2θ of 8.805°±0.50°, 12.119°±0.40°, and 26.036°±0.40°. The SCM-53 molecular sieve of the present invention has a novel skeletal structure and/or chemical composition, and has very important application value.

Classes IPC  ?

• C01B 39/48 - Autres types caractérisés par leur diagramme de diffraction des rayons X et par leur composition définie utilisant au moins un agent structurant organique
• B01J 20/16 - Alumino-silicates
• B01J 29/70 - Zéolites aluminosilicates cristallinesLeurs composés isomorphes de types caractérisés par leur structure spécifique non prévus dans les groupes
• B82Y 30/00 - Nanotechnologie pour matériaux ou science des surfaces, p. ex. nanocomposites
• B82Y 40/00 - Fabrication ou traitement des nanostructures

Abrégé

A modified titanium silicalite molecular sieve, which is characterized by containing titanium, silicon, oxygen and cesium, wherein the 133Cs MAS NMR spectrum thereof at least has resonance absorption peaks at -94±15 ppm, -73±15 ppm and -36±15 ppm. The modified titanium silicalite molecular sieve can be used in the aldol condensation reaction.

Classes IPC  ?

• B01J 29/89 - Silicates, aluminosilicates ou borosilicates du titane, du zirconium ou du hafnium
• B01J 37/10 - Traitement thermique en présence d'eau, p. ex. de vapeur d'eau
• C07C 67/343 - Préparation d'esters d'acides carboxyliques par modification de la partie acide de l'ester sans introduction d'un groupe ester par isomérisationPréparation d'esters d'acides carboxyliques par modification de la partie acide de l'ester sans introduction d'un groupe ester par modification de la taille du squelette carboné par augmentation du nombre d'atomes de carbone
• C07C 69/54 - Esters d'acide acryliqueEsters d'acide méthacrylique
• C01B 39/08 - Préparation de zéolites isomorphes caractérisée par les mesures prises pour le remplacement des atomes d'aluminium ou de silicium dans la charpente du réseau par des atomes d'autres éléments les atomes d'aluminium étant entièrement remplacés

Abrégé

A microwave heating system, comprising a container body (1). The container body (1) comprises at least one heating cavity (11); a microwave shielding element (15) is provided in the heating cavity (11); the microwave shielding element (15) divides the heating cavity (11) into a plurality of sub heating cavities; a microwave heating apparatus (3) and a heated carrier (2) capable of absorbing microwaves to generate heat are provided in each sub heating cavity; the microwave heating apparatus (3) is arranged on the side wall of the sub heating cavity; the microwave heating apparatus (3) comprises a dielectric radiator (33) made of a dielectric material; and the dielectric radiator (33) has a radiation section (331) located in the sub heating cavity and used for radiating the microwaves into the sub heating cavity so as to heat the heated carrier (2). The microwave heating system can effectively improve the uniformity of the microwaves heating a large-size heated carrier (2) and the microwave incident efficiency.

Classes IPC  ?

• B01J 19/12 - Procédés utilisant l'application directe de l'énergie ondulatoire ou électrique, ou un rayonnement particulaireAppareils à cet usage utilisant des radiations électromagnétiques
• H05B 6/64 - Chauffage par micro-ondes
• H05B 6/72 - Éléments rayonnants ou antennes

Abrégé

A photocatalytic material, and a preparation method therefor and a use thereof. The preparation method for the photocatalytic material comprises the following steps: 1) providing a photocatalytic material precursor covered by a liquid film; and 2) irradiating rays having a wavelength of 200 nm or less to the photocatalytic material precursor to obtain the photocatalytic material. The photocatalytic material has the advantages of simple preparation method, significant increase of the response value to light having a long wavelength, and the like.

Classes IPC  ?

• B01J 21/06 - Silicium, titane, zirconium ou hafniumLeurs oxydes ou hydroxydes
• B01J 27/24 - Composés de l'azote
• B01J 23/60 - Métaux du groupe du platine avec du zinc, du cadmium ou du mercure

Abrégé

Disclosed is an unsupported bimetallic hydrogenation catalyst, its preparation and application thereof. The catalyst is composed of a complex formed by bonding a metal central atom or central ion with an organic ligand through a coordination bond, and has a schematic composition represented by formula (I): M1M2Oa[R(COO)x]b (I), in which M1 and M2 represent metals, R(COO)x represents an organic ligand, R represents the hydrocarbyl group of the organic ligand, COO represents the coordinating group of the organic ligand, x represents the number of coordinating groups in the organic ligand, a represents the molar ratio of oxygen atom linked to the metal via a non-coordination bond to the total amount of the metal, and b represents the molar ratio of the organic ligand to the total amount of the metal. When used for hydrogenation of hydrocarbons, the catalyst and composition thereof show high dispersibility in oil phase, high hydrogenation activity and high selectivity to target product.

Classes IPC  ?

• B01J 31/22 - Complexes organiques
• B01J 37/04 - Mélange
• C10G 45/48 - Hydrogénation des hydrocarbures aromatiques caractérisée par le catalyseur utilisé contenant du nickel ou du cobalt, ou leurs composés

Abrégé

A ZSM-5 molecular sieve catalyst, a preparation method therefor and an application thereof are provided. In the catalyst, the ratio of the amount of skeleton aluminum located at the intersection of the straight pore channels and the sinusoidal pore channels to the amount of skeleton aluminum inside the straight pore channels and the sinusoidal pore channels is 1.4:1-10:1, the silica-alumina molar ratio SiO2/Al2O3 is 80-1500, and the microporous pore volume may account for 70% to 92% of the total pore volume. When used for producing propylene and ethylene by olefin catalytic cracking, the catalyst has characteristics of a low reaction hydrogen transfer index, a high stability, a high conversion rate of raw material olefin, and a high selectivity of products of propylene and ethylene.

Classes IPC  ?

• B01J 29/40 - Zéolites aluminosilicates cristallinesLeurs composés isomorphes du type pentasil, p. ex. types ZSM-5, ZSM-8 ou ZSM-11
• B01J 35/63 - Volume des pores
• B01J 37/00 - Procédés de préparation des catalyseurs, en généralProcédés d'activation des catalyseurs, en général
• B01J 37/10 - Traitement thermique en présence d'eau, p. ex. de vapeur d'eau

Abrégé

A process for preparing succinic anhydride by hydrogenation of maleic anhydride includes the steps of: 1) mixing a maleic anhydride solution with hydrogen to obtain a first liquid phase feed; 2) carrying out a first hydrogenation reaction by passing the first liquid phase feed from bottom to top through fixed bed layer(s) of a first maleic anhydride hydrogenation catalyst arranged in a first reaction unit under first hydrogenation reaction conditions to obtain a first reaction effluent containing succinic anhydride; 3) mixing the first reaction effluent from the first reaction unit with make-up hydrogen to obtain a second liquid phase feed; and 4) carrying out a second hydrogenation reaction by passing the second liquid phase feed from bottom to top through fixed bed layer(s) of a second maleic anhydride hydrogenation catalyst arranged in a second reaction unit under second hydrogenation reaction conditions to obtain a second reaction effluent containing succinic anhydride.

Classes IPC  ?

• C07D 307/60 - Deux atomes d'oxygène, p. ex. anhydride succinique
• 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
• B01J 21/04 - Alumine
• B01J 23/755 - Nickel
• B01J 35/30 - Catalyseurs caractérisés par leur forme ou leurs propriétés physiques, en général caractérisés par leurs propriétés physiques

Abrégé

A polypropylene microsphere and a preparation method therefor, a 3D printing raw material, and a use are provided. The polypropylene microsphere contains 0.2 wt %-10 wt % of a structural unit derived from ethylene and 90 wt %-99.8 wt % of a structural unit derived from propylene. A melting heat absorption curve of the polypropylene microsphere is obtained by means of a differential scanning calorimeter (DSC), and a half-peak width (Wm) of the melting heat absorption curve of the polypropylene microsphere is 4-10° C. The crystallization sequence distribution of the polypropylene microsphere is uniform, and when the polypropylene microsphere is used for 3D printing, 3D printing melting is uniform.

Classes IPC  ?

• C09D 123/14 - Copolymères du propène
• B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p. ex. par frittage ou fusion laser sélectif
• B29K 23/00 - Utilisation de polyalcènes comme matière de moulage
• B29K 105/00 - Présentation, forme ou état de la matière moulée
• B33Y 10/00 - Procédés de fabrication additive
• B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
• C08F 210/16 - Copolymères de l'éthylène avec des alpha-alcènes, p. ex. caoutchoucs EP

Abrégé

An annulus monitoring-based kick/loss monitoring system, comprising: an annulus monitoring assembly (107), configured to monitor annulus monitoring information at a fixed depth within a drilling annulus, wherein the annulus monitoring information comprises an annulus fluid velocity measurement value and/or fluid composition information of an annulus fluid; and a controller (101), coupled with the annulus monitoring assembly and configured to: receive the annulus monitoring information and mud logging data; determine drilling conditions associated with kick/loss monitoring; select a corresponding kick/loss monitoring model on the basis of the drilling conditions; determine a theoretical annulus fluid velocity value at a specified depth on the basis of the kick/loss monitoring model; determine whether the annulus fluid velocity measurement value falls within a predetermined range of the theoretical annulus fluid velocity value; and in response to the annulus fluid velocity measurement value deviating beyond the predetermined range of the theoretical annulus fluid velocity value, determine the presence of a kick or loss.

Classes IPC  ?

• E21B 47/103 - Localisation des fuites, intrusions ou mouvements du fluide utilisant des mesures thermiques
• E21B 47/10 - Localisation des fuites, intrusions ou mouvements du fluide
• E21B 47/00 - Relevés dans les trous de forage ou dans les puits

Abrégé

A catalytic cracking catalyst, on a dry basis, contains 10-35% by weight of a meso and macro pore aluminum oxide based on aluminum oxide, 5-30% by weight of an acidifying binder based on oxide, 2-20% by weight of a second binder based on oxide, 20-60% by weight of a zeolite, and 5-50% by weight of a clay. The meso and macro pore aluminum oxide is an aluminum oxide with a pseudo boehmite structure, which has a total pore volume of 0.5-2.0 mL/g, an average pore size of 5-30 nm, and a specific surface area of 250-450 m2/g. The catalytic cracking catalyst has a total pore volume not less than 0.200 mL/g. The volume of 2-100 nm meso and macro pores accounts for 70% or more of the total pore volume, while the volume of 4-50 nm mesoporous pores accounts for 60% or more of the total pore volume.

Classes IPC  ?

• B01J 29/08 - Zéolites aluminosilicates cristallinesLeurs composés isomorphes du type faujasite, p. ex. du type X ou Y
• B01J 21/04 - Alumine
• B01J 21/16 - Argiles ou autres silicates minéraux
• B01J 35/63 - Volume des pores
• B01J 37/00 - Procédés de préparation des catalyseurs, en généralProcédés d'activation des catalyseurs, en général
• B01J 37/04 - Mélange
• B01J 37/08 - Traitement thermique
• C10G 11/05 - Alumino-silicates cristallins, p. ex. tamis moléculaires

Abrégé

A method for obtaining elemental concentration and determining the formation density uses a tool having multiple dual-function detectors that can detect both neutrons and gamma rays simultaneously. The method includes emitting neutrons into the formation, detecting neutron and gamma ray signals from the formation and discriminating the neutron signal and the gamma ray signal, obtaining the space, time and energy dependent fluence rates for fast neutrons and thermal neutrons, obtaining gamma ray energy spectra from initial inelastic gamma rays and backscattered inelastic gamma rays from one or more detectors. The formation density can be calculated based on one or more ratios between the gamma ray count rates at the one or more detectors to the gamma ray count rate at the near detector.

Classes IPC  ?

• G01V 5/10 - Prospection ou détection au moyen de rayonnement ionisant, p. ex. de la radioactivité naturelle ou provoquée spécialement adaptée au carottage en utilisant des sources de radiation nucléaire primaire ou des rayons X en utilisant des sources de neutrons
• E21B 49/08 - Prélèvement d'échantillons de fluides ou test des fluides dans les trous de forage ou dans les puits

Abrégé

The wind power generation apparatus has an acquisition unit, a wind turbine, a generator, an electric power storage unit and a controller. The acquisition unit is used acquires a wind power value. The controller selects, according to the wind power value, the wind turbine to perform the following tasks: when the wind power value is between a first threshold value and a second threshold value, the wind turbine only drives the generator to generate power; when the wind power value is greater than the second threshold value, the wind turbine simultaneously drives the generator and the electric power storage unit to charge; when the wind power value is less than the first threshold value, the wind turbine only drives the electric power storage unit to charge or drives the electric power storage unit to output induced electric energy to the outside.

Classes IPC  ?

• F03D 7/04 - Commande automatiqueRégulation
• F03D 9/11 - Combinaisons des mécanismes moteurs à vent avec un appareil emmagasinant de l’énergie emmagasinant de l’énergie électrique
• F03D 9/25 - Mécanismes moteurs à vent caractérisés par l’appareil entrainé l’appareil étant un générateur électrique

Abrégé

A device for measuring the amount of desorbed gas has a sample desorption tank; a water drain metering assembly that has a metering tube configured to display a liquid level height and receive gas desorbed from the sample desorption tank, the metering tube being connected to a draining and injecting assembly for draining or injecting water, a first pressure monitoring member for monitoring a liquid pressure in the metering tube, and a second pressure monitoring member for monitoring a gas pressure in the metering tube; a gas exhausting assembly that is in communication with the water drain metering assembly and configured to exhaust desorbed gas therein; and a control assembly for controlling the desorbed gas to enter the metering tube, controlling the draining and injecting assembly to drain water, controlling the gas exhausting assembly to exhaust gas, and controlling the draining and injecting assembly to inject water.

Classes IPC  ?

• G01N 7/14 - Analyse des matériaux en mesurant la pression ou le volume d'un gaz ou d'une vapeur en permettant au matériau d'émettre un gaz ou une vapeur, p. ex. la vapeur d'eau, et en mesurant une différence de pression ou de volume

Abrégé

91212, and an extractant mixture. The method of the present invention comprises the steps of: (1) providing a stream containing vinyltoluene and a saturated C9 aromatic hydrocarbon; and (2) introducing the stream and an extractant mixture into an extractive distillation tower for extractive distillation, so as to obtain an overhead fraction and a bottom fraction, wherein the extractant mixture comprises N,N-dimethylformamide and glycerol, the overhead fraction contains the saturated C9 aromatic hydrocarbon and N,N-dimethylformamide, and the bottom fraction contains vinyltoluene and glycerol. The method of the present invention can be used for separating vinyltoluene and a saturated C9 aromatic hydrocarbon from lightweight cracked C9 aromatic hydrocarbons, thereby realizing a high yield and a high purity.

Classes IPC  ?

• 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 7/08 - Purification, séparation ou stabilisation d'hydrocarburesEmploi d'additifs par distillation à l'aide de composés auxiliaires extractive
• C07C 15/02 - Hydrocarbures monocycliques

Abrégé

Provided in the present invention is a method for determining the content of a target component in a gas mixture by means of Raman spectroscopy, comprising: performing Raman spectroscopy detection on a gas mixture to obtain a Raman spectrogram; selecting one characteristic peak from the Raman spectrogram as a reference peak, the component corresponding thereto being a reference component, and normalizing characteristic peaks in the Raman spectrogram relative to the reference peak, so as to obtain a relative Raman peak height of each characteristic peak; in combination with the Raman spectrogram of a pure target component, determining the peak position of the characteristic peak of each target component in the Raman spectrogram of the gas mixture; on the basis of the relative Raman peak height of the target component and a regression coefficient obtained on the basis of a training sample set of the gas mixture, determining the molar ratio or volume ratio of the target component to the reference component in the gas mixture; and, on the basis of the molar ratio or volume ratio of the target component to the reference component, determining the molar fraction or volume fraction of each target component in the gas mixture.

Classes IPC  ?

• G01N 21/65 - Diffusion de Raman

Abrégé

In seismic data, migration images and inverted models, interesting structures with sharp spatial variations such as faults, channels or caves are embedded in laterally smooth stratigraphic layers, coherent and non-coherent noises etc. One way to enhance these structures is to take advantage of the local strong contrast property and use Sobel filter. However, Sobel filter is a discrete differentiation operator which enhances the edges and may lead to drastic amplitude changes within one feature and add difficulties to interpretation. The method uses histogram equalization after Sobel filter which makes the amplitude of a feature much more homogenous and presents a much clearer image of faults or channels with little background noise.

Classes IPC  ?

• G01V 1/36 - Exécution de corrections statiques ou dynamiques sur des enregistrements, p. ex. correction de l'étalementÉtablissement d'une corrélation entre signaux sismiquesÉlimination des effets produits par un excès d'énergie
• G06T 7/13 - Détection de bords

Abrégé

123 33233; 0

Classes IPC  ?

• C08G 59/06 - Polycondensats contenant plusieurs groupes époxyde par molécule de composés polyhydroxylés avec l'épihalohydrine ou ses précurseurs de polyphénols

Abrégé

The present invention relates to the fields of high polymer materials and oil and gas exploitation, and disclosed are a curable resin composition and a use thereof, and a honeycomb resin product and a preparation method therefor and a use thereof. The curable resin composition comprises a component A and a component B; the component A and the component B are each independently present; the component A comprises an aqueous thermosetting resin, a solvent-type thermosetting resin, an emulsifier, and water; the component B comprises a curing agent, and the curing agent is selected from modified nanosilica represented by formula I and/or a bisphenol novolac resin; in the formula I, A is a structural unit from an anhydride-based compound, and B is a structural unit from a polyamino compound; the bisphenol novolac resin comprises a structural unit represented by formula II and a structural unit represented by formula III; and based on the total weight of the bisphenol novolac resin, the content of the structural unit represented by formula II is 0-100 wt%, and the content of the structural unit represented by formula III is 0-100 wt%.

Classes IPC  ?

• C09K 8/68 - Compositions à base d'eau ou de solvants polaires contenant des composés organiques
• C09K 8/88 - Composés macromoléculaires
• C09K 8/94 - Mousses
• C08G 59/40 - Macromolécules obtenues par polymérisation à partir de composés contenant plusieurs groupes époxyde par molécule en utilisant des agents de durcissement ou des catalyseurs qui réagissent avec les groupes époxyde caractérisées par les agents de durcissement utilisés

Abrégé

A composite oxide contains 60-95 wt % of aluminum oxide and 5-40 wt % of titanium dioxide. The specific surface area of the composite oxide determined by means of BET method is expressed as X m2/g. The average pore diameter of the composite oxide determined by means of nitrogen adsorption isothermal curve method is expressed as Y nm. The ratio of X to Y is 5-30. By means of the determination of X-ray diffraction method, titanium dioxide in an anatase crystalline phase in the composite oxide accounts for 95-100 wt % of the total titanium dioxide. X is in the range of 50-200, preferably X is in the range of 60-180, more preferably in the range of 80-150, and Y is in the range of 5-25 nm. A hydrogenation catalyst that contains the composite oxide shows a high vinyl acetylene conversion rate and a high 1,3-butadiene selectivity.

Classes IPC  ?

• B01J 21/06 - Silicium, titane, zirconium ou hafniumLeurs oxydes ou hydroxydes
• B01J 6/00 - CalcinationCuisson
• B01J 21/04 - Alumine
• B01J 23/755 - Nickel
• B01J 35/61 - Surface spécifique
• B01J 35/64 - Diamètre des pores
• B01J 37/04 - Mélange
• B01J 37/06 - Lavage
• B01J 37/08 - Traitement thermique
• C07C 5/08 - Préparation d'hydrocarbures à partir d'hydrocarbures contenant le même nombre d'atomes de carbone par hydrogénation de liaisons triples carbone-carbone
• C07C 11/167 - Butadiène-1,3

Abrégé

A monolithic catalytic material and a monolithic catalyst, a preparation method therefor and use thereof, and a catalytic oxidation method. The monolithic catalytic material comprises a structured support and a modified alumina coating distributed on the structured support. The modified alumina coating comprises an alumina-containing coating and a manganese-cobalt composite oxide supported on the surface of the alumina-containing coating. The monolithic catalytic material has better catalytic activity.

Classes IPC  ?

• B01J 23/89 - Catalyseurs contenant des métaux, oxydes ou hydroxydes métalliques non prévus dans le groupe du cuivre ou des métaux du groupe du fer combinés à des métaux nobles
• B01J 37/02 - Imprégnation, revêtement ou précipitation
• B01J 37/03 - PrécipitationCo-précipitation

Abrégé

A phase change fracturing method. The phase change fracturing method comprises: injecting a phase change material liquid into a stratum, wherein the phase change material liquid undergoes phase change under the stratum condition to form a honeycomb solid-phase proppant, thereby completing phase change fracturing. According to the fracturing method, the phase change material liquid is injected into the stratum, and the phase change material liquid undergoes phase change to form the honeycomb solid-phase proppant, such that fracturing is implemented without additionally adding any proppant. Moreover, the formed honeycomb solid-phase proppant has high compressive strength, low deformation, and excellent flow conductivity.

Classes IPC  ?

• E21B 43/267 - Maintien de fractures par étaiement
• C09K 8/68 - Compositions à base d'eau ou de solvants polaires contenant des composés organiques

Abrégé

A top drive control system based on bi-directional transmission, relating to the technical field of petroleum drilling. The system comprises: a power-receiving end, a coupler, and a power-transmitting end. In the coupled power supply process, the power-transmitting end inverts first direct current to alternating current, and transmits the alternating current to the power-receiving end by means of the coupler; and the power-receiving end rectifies the alternating current to obtain second direct current, so as to supply power to sensors, located at the lower portion of a top drive rotating head, of a hydraulic elevator and a drilling elevator link. In the coupled communication process, the power-receiving end modulates acquired sensor data of the sensors into modulated signals, and transmits the modulated signals to the power-transmitting end by means of the coupler. By means of coupled power supply, power is supplied to the sensors mounted at the lower portion of the top drive rotating head, and by means of coupled communication, signals of the sensors at the lower portion of the rotating head are transmitted to a top drive electrical control house, thereby achieving stable power supply to the sensors and reliable transmission of signals.

Classes IPC  ?

• E21B 3/02 - Moyens d'entraînement de surface pour forage par rotation

Abrégé

Process for producing phenol, cresol and xylenes from a coal-derived feed are described. The processes combine dealkylation of alkylphenols from coal derived liquids followed by benzene and/or toluene transalkylation to reduce the production of non-ideal alkylbenzenes and reduce the usage of benzene/toluene. Alkylphenols from the coal derived liquids are converted in a dealkylation reaction zone comprising a dealkylation reactor to make phenol. The unconverted alkylphenols and an aromatic compound, such as benzene or toluene, are fed to a transalkylation reaction zone comprising a transalkylation reactor to make more phenol. Cresols and xylenes can also be produced.

Classes IPC  ?

• C07C 37/50 - Préparation de composés comportant des groupes hydroxyle ou O-métal liés à un atome de carbone d'un cycle aromatique à six chaînons par des réactions diminuant le nombre d'atomes de carbone
• C07C 6/12 - Préparation d'hydrocarbures à partir d'hydrocarbures contenant un nombre différent d'atomes de carbone par des réactions de redistribution par conversion d'une liaison carbone-carbone saturée exclusivement dans les hydrocarbures contenant un cycle aromatique à six chaînons
• C07C 37/48 - Préparation de composés comportant des groupes hydroxyle ou O-métal liés à un atome de carbone d'un cycle aromatique à six chaînons par échange de groupes hydrocarbonés, éventuellement substitués, avec d'autres composés, p. ex. par transalkylation
• C07C 37/68 - SéparationPurificationStabilisationEmploi d'additifs

Abrégé

A flame arrester structure, comprising: a housing (1) provided with a pressure relief intake end (11), a pressure relief exhaust end (12) and a chamber (13) connecting the pressure relief intake end and the pressure relief exhaust end; a fire resistant structure arranged at the pressure relief exhaust end, the fire resistant structure comprising a plurality of fire resistant layers (2) successively arranged at intervals in the axial direction of the pressure relief exhaust end; and a flow guide structure arranged inside the housing, located upstream of the fire resistant structure in the flowing direction of a pressure relief airflow inside the housing, and used for dividing the pressure relief airflow inside the housing into multiple regional airflows that flow towards different regions of the fire resistant structure. When accidents such as fire occur in pressure relief positions of storage tanks of petrochemical devices, the flame arrester structure can provide long-duration fire resistance protection, thus preventing the accidents from further escalating and allowing more readiness time for emergency rescue.

Classes IPC  ?

• A62C 4/00 - Pièges à flammes permettant le passage du gaz et non pas celui de la flamme ou de l'onde détonante
• A62C 3/06 - Prévention, limitation ou extinction des incendies spécialement adaptées pour des objets ou des endroits particuliers pour des matériaux très inflammables, p. ex. les métaux légers, les produits du pétrole

Abrégé

The present invention belongs to the technical field of fine chemical engineering, and specifically relates to a method for producing diphenylamine. The method comprises: in the presence of an olefin, allowing aniline to come into contact with a catalyst, and performing a condensation reaction, wherein therea re 2-4 carbon atoms in the olefin. By means of introducing an olefin into a reaction system, the method for producing diphenylamine provided in the present invention can effectively improve the conversion rate of aniline and the stability of the reaction, where the conversion rate of aniline can reach a maximum of 40.2 mol% while maintaining relatively high selectivity.

Classes IPC  ?

• C07C 209/62 - Préparation de composés contenant des groupes amino liés à un squelette carboné par clivage de liaisons carbone-azote, soufre-azote ou phosphore-azote, p. ex. hydrolyse d'amides, N-déalkylation d'amines ou de composés d'ammonium quaternaire
• C07C 209/02 - Préparation de composés contenant des groupes amino liés à un squelette carboné par substitution d'atomes d'hydrogène par des groupes amino
• C07C 209/16 - Préparation de composés contenant des groupes amino liés à un squelette carboné par substitution de groupes fonctionnels par des groupes amino par substitution de groupes hydroxy ou de groupes hydroxy éthérifiés ou estérifiés avec formation de groupes amino liés à des atomes de carbone acycliques ou à des atomes de carbone de cycles autres que des cycles aromatiques à six chaînons
• C07C 211/55 - Diphénylamines
• C07C 211/06 - Monoamines contenant uniquement des groupes n- ou iso-propyle
• B01J 29/70 - Zéolites aluminosilicates cristallinesLeurs composés isomorphes de types caractérisés par leur structure spécifique non prévus dans les groupes

Abrégé

A method for determining a near-critical region of impurity-containing carbon dioxide transported via a pipeline, comprising: on the basis of the composition of impurity-containing carbon dioxide transported via a pipeline, calculating the critical temperature and critical pressure of the impurity-containing carbon dioxide, and on the basis of the maximum working temperature and maximum working pressure of the pipeline, determining a supercritical pipeline transportation temperature range and a supercritical pipeline transportation pressure range; within the supercritical pipeline transportation temperature range and the supercritical pipeline transportation pressure range, calculating the physical property parameters of the impurity-containing carbon dioxide; respectively determining the temperature range of drastic change of the physical property parameters under a constant pressure condition and the pressure range of drastic change of the physical property parameters under a constant temperature condition, and recording the temperature range and the pressure range as a first range and a second range; and on the basis of the first range and the second range, obtaining a near-critical region corresponding to the impurity-containing carbon dioxide transported via the pipeline.

Classes IPC  ?

• F17D 3/01 - Dispositions pour la surveillance ou la commande des opérations de fonctionnement pour commander, signaler ou surveiller le transfert d'un produit
• F17D 3/00 - Dispositions pour la surveillance ou la commande des opérations de fonctionnement
• F17D 5/00 - Protection ou surveillance des installations
• F17D 1/02 - Systèmes de canalisation pour gaz ou vapeurs

Abrégé

The present invention belongs to the technical field of fine chemical engineering, and particularly relates to a method for co-producing diphenylamine and quinolone. The method comprises: subjecting aniline and a catalyst to a contact reaction in the presence of propylene, so as to obtain a reaction product containing diphenylamine and quinoline. In the method provided in the present invention, by introducing propylene into a reaction system, diphenylamine and quinoline can be co-produced, the conversion rate of aniline is high, and the total selectivity of the diphenylamine and quinoline is high.

Classes IPC  ?

• C07C 209/62 - Préparation de composés contenant des groupes amino liés à un squelette carboné par clivage de liaisons carbone-azote, soufre-azote ou phosphore-azote, p. ex. hydrolyse d'amides, N-déalkylation d'amines ou de composés d'ammonium quaternaire
• C07C 209/60 - Préparation de composés contenant des groupes amino liés à un squelette carboné par des réactions de condensation ou d'addition, p. ex. réaction de Mannich, addition d'ammoniac ou d'amines à des alcènes ou à des alcynes ou addition de composés, contenant un atome d'hydrogène actif, à des bases de Schiff, à des quinone-imines ou à des aziranes
• C07C 211/55 - Diphénylamines
• C07D 215/00 - Composés hétérocycliques contenant les systèmes cycliques de la quinoléine ou de la quinoléine hydrogénée

Abrégé

A modified molecular sieve and a preparation method therefor, a catalyst and the use thereof, and a method for synthesizing diphenylamine from aniline. The modified molecular sieve comprises a β molecular sieve and an auxiliary component, and the auxiliary component is selected from at least one alkali metal. The indicative constant k of the modified molecular sieve is not less than 100. The catalyst prepared from the modified molecular sieve has a relatively high diphenylamine selectivity and a longer one-way operation period.

Classes IPC  ?

• B01J 29/70 - Zéolites aluminosilicates cristallinesLeurs composés isomorphes de types caractérisés par leur structure spécifique non prévus dans les groupes
• C07C 211/55 - Diphénylamines

Abrégé

An approach for calibrating prestack seismic inversion is provided. This method includes selecting various features from inverted elastic properties to generate reservoir properties; fully connected neural network models are used to learn the mapping between the features and ground truth data at well locations; and the prediction is applied to generate one or more final models for the reservoir characterization of the whole survey region.

Classes IPC  ?

• G01V 1/50 - Analyse des données
• E21B 47/00 - Relevés dans les trous de forage ou dans les puits
• G01V 1/20 - Aménagements d'éléments récepteurs, p. ex. oscillogrammes géophoniques
• G01V 1/30 - Analyse
• G06F 18/20 - Analyse
• G06N 3/02 - Réseaux neuronaux

Abrégé

A polyacrylonitrile fiber pre-oxidized fiber, a preparation method therefor and the use thereof. The pre-oxidized fiber comprises a core part and a skin part wrapping the core part, wherein the characteristic tensile parameter of the polyacrylonitrile pre-oxidized fiber is 475.0-580.0 cN/μm. Polyacrylonitrile-based carbon fibers prepared from the polyacrylonitrile pre-oxidized fibers reduce or eliminate chemical defects and structural defects, thereby improving the mechanical properties of carbon fibers.

Classes IPC  ?

• D01F 9/22 - Filaments de carboneAppareils spécialement adaptés à leur fabrication par décomposition de filaments organiques à partir de produits de polyaddition, de polycondensation ou de polymérisation à partir de composés macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone à partir de polyacrylonitriles

Abrégé

The present invention relates to a high-molecular-weight polymer monofilament with an ultra-low residual solvent content, and a manufacturing method therefor and the use thereof. The method for manufacturing a high-molecular-weight polymer monofilament of the present invention comprises exposing a protofilament comprising a high-molecular-weight polymer and a solvent to the following environmental atmosphere: the environmental atmosphere has an elevated temperature, and the concentration of the solvent in the environmental atmosphere is 50 vol% or higher, based on the total volume of the environmental atmosphere being 100 vol%. The high-molecular-weight polymer monofilament of the present invention has the characteristic of an ultra-low residual solvent content, and is particularly suitable for use in the manufacture of medical products.

Classes IPC  ?

• D01D 5/04 - Méthodes de filage à sec

Abrégé

The invention relates to the technical field of membrane separation, and discloses a hollow fiber membrane and preparation method and use thereof. The hollow fiber membrane includes a support, a selective layer, and a transition layer between the support and the selective layer, wherein at least a portion of the transition layer is embedded in the support. The hollow fiber membrane has a high selectivity and good mechanical properties.

Classes IPC  ?

• B01D 67/00 - Procédés spécialement adaptés à la fabrication de membranes semi-perméables destinées aux procédés ou aux appareils de séparation
• B01D 53/00 - Séparation de gaz ou de vapeursRécupération de vapeurs de solvants volatils dans les gazÉpuration chimique ou biologique des gaz résiduaires, p. ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols
• B01D 53/047 - Adsorption à pression alternée
• B01D 53/22 - Séparation de gaz ou de vapeursRécupération de vapeurs de solvants volatils dans les gazÉpuration chimique ou biologique des gaz résiduaires, p. ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par diffusion
• B01D 69/02 - Membranes semi-perméables destinées aux procédés ou aux appareils de séparation, caractérisées par leur forme, leur structure ou leurs propriétésProcédés spécialement adaptés à leur fabrication caractérisées par leurs propriétés
• B01D 69/08 - Membranes à fibres creuses
• B01D 69/10 - Membranes sur supportSupports pour membranes
• B01D 71/62 - Polycondensats ayant des hétérocycles contenant de l'azote dans la chaîne principale
• C01B 23/00 - Gaz raresLeurs composés

Abrégé

A method for estimating source wavelet for seismic survey includes multiple steps. First, seismic data are collected using seismic data recording sensors and well log data are collected using a well logging tool in a well site in a survey region. The seismic data and the well log data are stored and processed in a computer system. The time-migrated seismic data thus collected and processed is the observed data. The well log data is processed to obtain one or more earth models that represent one or more formation properties; reflectivity modeling is performed to obtain a reflectivity, a band pass filter and time-migrated reflectivity to produce a band-limited reflectivity; the band-limited reflectivity is cross-correlated with the observed data to obtain a weight; and inversion is performed to obtain a source wavelet based on the weight, the reflectivity, and the observed data.

Classes IPC  ?

• G01V 1/28 - Traitement des données sismiques, p. ex. pour l’interprétation ou pour la détection d’événements
• G01V 1/50 - Analyse des données
• G01V 11/00 - Prospection ou détection par des méthodes combinant des techniques spécifiées dans les groupes

Abrégé

Cu/M2+M3+oxide or CuO/M2+M3+oxide catalysts have been developed for use in producing isobutanol in propanol-methanol, ethanol-methanol and propanol/ethanol mixture-methanol Guerbet reactions. The catal sts can also be used in makin n-butanol in ethanol-ethanol reactions. The Cu/M2+M3+oxide or CuO/M2M3oxide catalyst has an average Cu or CuO particle size greater than or equal to 20 nm. M2+may comprise divalent magnesium, calcium, strontium, barium, zinc, or combinations thereof. M3+ may comprise trivalent aluminum, gallium, chromium, or combinations thereof. Catalysts, methods of making the catalysts, and methods of using the catalysts are described.

Classes IPC  ?

• B01J 35/40 - Catalyseurs caractérisés par leur forme ou leurs propriétés physiques, en général caractérisés par leurs dimensions, p. ex. granulométrie
• B01J 35/45 - Nanoparticules
• B01J 35/30 - Catalyseurs caractérisés par leur forme ou leurs propriétés physiques, en général caractérisés par leurs propriétés physiques
• B01J 23/78 - Catalyseurs contenant des métaux, oxydes ou hydroxydes métalliques non prévus dans le groupe du cuivre ou des métaux du groupe du fer en combinaison avec des métaux, oxydes ou hydroxydes prévus dans les groupes avec des métaux alcalins ou alcalino-terreux ou du béryllium
• B01J 23/825 - Catalyseurs contenant des métaux, oxydes ou hydroxydes métalliques non prévus dans le groupe du cuivre ou des métaux du groupe du fer en combinaison avec des métaux, oxydes ou hydroxydes prévus dans les groupes avec du gallium, de l'indium ou du thallium
• B01J 23/80 - Catalyseurs contenant des métaux, oxydes ou hydroxydes métalliques non prévus dans le groupe du cuivre ou des métaux du groupe du fer en combinaison avec des métaux, oxydes ou hydroxydes prévus dans les groupes avec du zinc, du cadmium ou du mercure
• B01J 23/86 - Chrome
• C07C 29/34 - 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 augmentant le nombre d'atomes de carbone sans formation de groupes hydroxyle par condensation impliquant des groupes hydroxyle, ou leurs esters d'acides minéraux, p. ex. réaction de Guerbet
• B01J 37/02 - Imprégnation, revêtement ou précipitation
• B01J 37/03 - PrécipitationCo-précipitation
• B01J 37/08 - Traitement thermique
• B01J 37/10 - Traitement thermique en présence d'eau, p. ex. de vapeur d'eau
• B01J 23/00 - Catalyseurs contenant des métaux, oxydes ou hydroxydes métalliques non prévus dans le groupe
• B01J 21/04 - Alumine
• B01J 21/10 - MagnésiumSes oxydes ou hydroxydes

Abrégé

An approach for calibrating prestack seismic inversion is provided. This method includes selecting various features from inverted elastic properties to generate reservoir properties; fully connected neural network models are used to learn the mapping between the features and ground truth data at well locations; and the prediction is applied to generate one or more final models for the reservoir characterization of the whole survey region.

Classes IPC  ?

• G01V 13/00 - Fabrication, étalonnage, nettoyage ou réparation des instruments ou dispositifs couverts par les groupes
• G01V 1/28 - Traitement des données sismiques, p. ex. pour l’interprétation ou pour la détection d’événements
• G01V 1/30 - Analyse

Abrégé

An interconnectable downhole instrument package has a downhole instrument disposed in a pressure housing; a male connector assembly connecting to a first end of the downhole instrument; and a female connector assembly connecting to a second end of the downhole instrument. The male connector assembly has a first housing and a male rotatable connector that are connected together, while the female connector assembly has a second housing and a female rotatable connector. The second housing is adapted to receive the female rotatable connector.

Classes IPC  ?

• E21B 17/02 - AccouplementsJoints
• E21B 47/01 - Dispositifs pour supporter des instruments de mesure sur des trépans, des tubes, des tiges ou des câbles de forageProtection des instruments de mesure dans les trous de forage contre la chaleur, les chocs, la pression ou similaire
• E21B 47/06 - Mesure de la température ou de la pression