Abrégé

An integrated membrane electrode for water electrolysis and a fuel cell, and a preparation method. The integrated membrane electrode comprises an enhanced proton exchange membrane, and a catalytic layer having high proton transmission efficiency. In a preparation process, a support body is subjected to compatibility modification treatment, then a coating process is used on two sides to prepare a proton exchange membrane compact layer and a catalytic layer, to implement integrated preparation of a membrane electrode CCM. A large quantity of nano-scale water-retaining functional particles are uniformly distributed in a reinforcing body and the catalytic layer of the prepared integrated membrane electrode, and the proton exchange membrane uses a short side chain resin. The configuration of the described structure can facilitate improvement of the mechanical strength of membrane electrode CCM, reduce thickness of the CCM, improve the electrical conductivity thereof, and simultaneously be compatible with membrane electrode performance requirements for water electrolysis and fuel cells in high and low temperatures and different humidity environments, thereby simplifying the preparation process.

Classes IPC  ?

• H01M 8/1004 - Éléments à combustible avec électrolytes solides caractérisés par les ensembles membrane-électrodes [MEA]
• H01M 4/86 - Électrodes inertes ayant une activité catalytique, p. ex. pour piles à combustible
• H01M 4/88 - Procédés de fabrication
• H01M 8/0245 - Composites sous forme de produits en couches ou enrobés
• H01M 8/1018 - Matériaux d’électrolyte polymère
• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• 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
• C25B 13/02 - DiaphragmesÉléments d'espacement caractérisés par la configuration ou la forme
• C25B 13/08 - DiaphragmesÉléments d'espacement caractérisés par le matériau à base de matériaux organiques

Abrégé

Provided in the present invention is a method for controlling intelligent health management of a fuel cell. The method comprises: taking, as control target values of a fuel cell, a current, a temperature, a hydrogen emission, an oxygen emission, a hydrogen reflux quantity, a hydrogen-side pressure and an oxygen-side pressure, which correspond to each of a calculated value of the total voltage of a fuel cell stack, a calculated value of a single-cell voltage mean square error of the fuel cell stack, a calculated value of a single-cell voltage change rate of the fuel cell stack and a calculated value of a single-cell voltage minimum amplitude of the fuel cell stack, or correspond to each of an optimized value of the total voltage of the fuel cell stack, an optimized value of the single-cell voltage mean square error of the fuel cell stack, an optimized value of the single-cell voltage change rate of the fuel cell stack and an optimized value of the single-cell voltage minimum amplitude of the fuel cell stack, and thus a membrane electrode is always in a "water balance" state, thereby improving the performance of cells, reducing the occurrence of cell faults, and improving the self-adaptability, reliability and stability of a fuel cell system.

Classes IPC  ?

• H01M 8/04992 - Procédés de commande des éléments à combustible ou des systèmes d’éléments à combustible caractérisés par la mise en œuvre d’algorithmes mathématiques ou de calcul, p. ex. les boucles de commande de rétroaction, la logique floue, les réseaux neuronaux ou l’intelligence artificielle
• H01M 8/04298 - Procédés de commande des éléments à combustible ou des systèmes d’éléments à combustible
• H01M 8/04858 - Variables électriques
• H01M 8/04701 - Température
• H01M 8/04746 - PressionDébit

Abrégé

Provided is a method for preparing aromatic hydrocarbons by means of coupling conversion of carbon monoxide and a polyolefin, belonging to the technical field of polyolefin plastic conversion and recycling. The method uses carbon monoxide and polyolefin type plastic as reaction raw materials, uses as a catalyst a bifunctional catalyst consisting of metal, a metal oxide and a molecular sieve, and comprises performing a conversion reaction under the action of the catalyst. Because carbon monoxide may come from carbon resources such as coal, biomass and natural gas, the reaction process not only achieves optimized utilization of carbon resources, but also converts polyolefin waste plastic into valuable resources, achieving high-value utilization and producing aromatic hydrocarbon products having high added value. The reaction has a very high product yield and product selectivity, the yield of the aromatic hydrocarbons can reach 50%-80%, the proportion of benzene, toluene and xylene in the aromatic hydrocarbons is greater than 60%, and the catalyst can be repeatedly used after simple regeneration treatment. The present application is a new technology for comprehensive utilization of polyolefin type waste plastic and carbon monoxide utilization, and has a good application prospect.

Classes IPC  ?

• B01J 29/44 - Métaux nobles
• C10G 1/10 - Production de mélanges liquides d'hydrocarbures à partir de schiste bitumineux, de sable pétrolifère ou de matières carbonées solides non fusibles ou similaires, p. ex. bois, charbon à partir de caoutchouc ou de déchets de caoutchouc
• C10G 2/00 - Production de mélanges liquides d'hydrocarbures de composition non définie à partir d'oxydes de carbone
• B01J 29/76 - Métaux du groupe du fer ou cuivre
• 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 29/40 - Zéolites aluminosilicates cristallinesLeurs composés isomorphes du type pentasil, p. ex. types ZSM-5, ZSM-8 ou ZSM-11
• B01J 29/46 - Métaux du groupe du fer ou cuivre
• C07C 2/86 - Préparation d'hydrocarbures à partir d'hydrocarbures contenant un plus petit nombre d'atomes de carbone par condensation d'un hydrocarbure et d'un non-hydrocarbure
• C07C 15/06 - Toluène
• C07C 15/04 - Benzène
• C07C 15/08 - Xylènes

Abrégé

Related to is a method for preparing aromatic hydrocarbon by coupling conversion of carbon dioxide and polyolefin, relating to the technical field of conversion and reutilization of polyolefin plastics. A catalyst is a bifunctional catalyst formed by metal, metal oxide and a molecular sieve, carbon dioxide and polyolefin are used as reaction raw materials, and a conversion reaction is carried out under the action of the catalyst. The reaction process can not only achieve resource utilization of the carbon dioxide, but also achieve high-value utilization of polyolefin plastics to generate high-value-added aromatic products. The reaction has a high product yield and product selectivity, wherein the yield of the aromatic hydrocarbon can reach 50-80%, and the proportion of benzene, toluene and xylene in the aromatic hydrocarbon is greater than 60%. Moreover, the catalyst can be reused after simple regeneration treatment. The method is a novel technology for comprehensive utilization of polyolefin waste plastics and reduction of carbon dioxide emissions, and has good application prospects.

Classes IPC  ?

• C10G 1/10 - Production de mélanges liquides d'hydrocarbures à partir de schiste bitumineux, de sable pétrolifère ou de matières carbonées solides non fusibles ou similaires, p. ex. bois, charbon à partir de caoutchouc ou de déchets de caoutchouc
• C07C 15/00 - Hydrocarbures cycliques ne contenant que des cycles aromatiques à six chaînons en tant que partie cyclique
• 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 29/14 - Cuivre ou métaux du groupe du fer
• B01J 29/74 - Métaux nobles

Abrégé

A core-shell structured hydrogen anion conductor and a preparation method therefor and an application thereof. The core-shell structured hydrogen anion conductor comprises a core portion and a coating layer, wherein the coating layer coats the core portion. For the core-shell structured hydrogen anion conductor, the core is a mixed ion conductor that conducts hydrogen anions, and the shell is made of a material having high electronic resistance. The conductor exhibits excellent ionic conductivity at room temperature and high temperature, and is expected to be applied to hydrogen anion batteries, fuel cells, electroreduction reaction devices, etc. The conductor greatly broadens the research system and application range of metal hydrides and solid electrolyte materials.

Classes IPC  ?

• H01B 1/06 - Conducteurs ou corps conducteurs caractérisés par les matériaux conducteurs utilisésEmploi de matériaux spécifiés comme conducteurs composés principalement d'autres substances non métalliques

Abrégé

The present invention belongs to the technical field of the conversion and recycling of polyolefin plastics, and disclosed is a method for preparing high-quality gasoline by means of the coupling conversion of carbon dioxide and a polyolefin. The catalyst is a bifunctional catalyst composed of a metal, a metal oxide and a molecular sieve, and carbon dioxide and polyolefin as reaction raw materials are subjected to a conversion reaction under the action of the catalyst. The reaction process can not only achieve the resource utilization of carbon dioxide at the same time, but can also transform waste polyolefin plastics into wealth, thus achieving high-value utilization and generating high-octane gasoline; and the reaction has a high product yield and product selectivity, the yield of the high-octane gasoline can reach 60-90%, the content of aromatic hydrocarbons in the gasoline is 10-35%, and the catalyst can be repeatedly used in a simple regeneration treatment, and thus the method is a new technology for comprehensive utilization of polyolefin plastics and carbon dioxide emission reduction, and has good application prospects.

Classes IPC  ?

• C10B 53/07 - Distillation destructive spécialement conçue pour des matières premières solides particulières ou sous forme spéciale de matières polymères synthétiques, p. ex. pneumatiques
• C10G 1/10 - Production de mélanges liquides d'hydrocarbures à partir de schiste bitumineux, de sable pétrolifère ou de matières carbonées solides non fusibles ou similaires, p. ex. bois, charbon à partir de caoutchouc ou de déchets de caoutchouc
• C10J 3/00 - Production de gaz contenant de l'oxyde de carbone et de l'hydrogène, p. ex. du gaz de synthèse ou du gaz de ville, à partir de matières carbonées solides par des procédés d'oxydation partielle faisant intervenir de l'oxygène ou de la vapeur
• 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

Abrégé

Disclosed in the present application are an all-solid-state hydride battery and a preparation method therefor. The all-solid-state hydride battery sequentially comprises, from a positive electrode to a negative electrode, a positive electrode current collector, a positive electrode active layer, a hydride electrolyte layer, a negative electrode active layer and a negative electrode current collector, wherein the hydride electrolyte layer is a hydride containing a rare earth metal element; the negative electrode active material layer comprises a metal or a low-hydrogen-content hydrogen-containing compound; the positive electrode active material layer comprises a high-hydrogen-content hydrogen-containing compound; and the solid-state electrolyte layer conducts hydride anions. The present invention, as a new hydride battery, can achieve charging and discharging, has relatively good cycling performance, greatly broadens the research system of a secondary battery, and has a profound application value.

Classes IPC  ?

• H01M 10/04 - Structure ou fabrication en général

Abrégé

The present invention relates to the technical fields of electrocatalysis and chemical industry, and specifically relates to an electrocatalytic water oxidation homogeneous diatomic catalyst, and a preparation method therefor and a use thereof. The catalyst comprises a carrier and a homogeneous diatomic active site having an adjacency structure, and the active site is anchored in the carrier; the carrier is at least one of an oxide, a hydroxide and an oxyhydroxide of a 3d transition-metal; a coordination structure is formed between the double atoms and the carrier. The intrinsic activity of a diatomic dispersed catalytic material prepared by the method in an electrocatalytic water oxidation reaction is equivalent to that of the existing natural photosynthetic system II having the highest efficiency, at the same time, the water oxidation initial potential is merely 170 mV, and the stability is kept for 650 h under a current density of 20 A cm−2; and the preparation method is simple and has low cost.

Classes IPC  ?

• C25B 11/054 - Électrodes comportant des électro-catalyseurs sur un support
• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• C25B 1/55 - Photo-électrolyse
• C25B 11/067 - Composé inorganique, p. ex. oxyde d'indium-étain, silice ou oxydes de titane
• C25B 11/081 - Métal noble

Abrégé

A preparation method for a one-dimensional Ni12P5/Ni2P polycrystalline heterostructure catalyst used for high-efficiency water oxidation is provided. In particular, nickel foam is used as a conductive carrier and a nickel source, sodium phosphite is used as a phosphorus source, and the one-dimensional polycrystalline heterostructure catalyst is synthesized therefrom by means of a two-step hydrothermal-phosphorization method. The combination of the one-dimensional heterostructure and the nickel foam conductive carrier is beneficial for charge transfer and the release of bubbles on the surface of an electrode/electrolyte. The prepared Ni12P5/Ni2P/NF catalyst has a relatively low electrocatalytic water oxidation overpotential and long-term stability in an alkaline solution. After the Ni12P5/Ni2P/NF is loaded with monatomic Ir, the water oxidation overpotential can be further reduced.

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
• C23C 18/04 - Pré-traitement du matériau à revêtir
• C23C 18/12 - Revêtement chimique par décomposition soit de composés liquides, soit de solutions des composés constituant le revêtement, ne laissant pas de produits de réaction du matériau de la surface dans le revêtementDépôt par contact par décomposition thermique caractérisée par le dépôt sur des matériaux inorganiques, autres que des matériaux métalliques
• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• C25B 11/031 - Électrodes poreuses
• C25B 11/052 - Électrodes comportant un substrat et un ou plusieurs revêtements électro-catalytiques
• C25B 11/061 - Métal ou alliage

Abrégé

A method for removing acidic gases from a post combustion process stream, the method comprising the steps of: receiving the post combustion process stream into hollow fibers of at least one MBC cell, each hollow fiber gas permeable, liquid impermeable; passing a lean solvent in contact with an external surface of said hollow fibers; exchanging said acidic gas into the solvent through the hollow fiber; venting an acidic gas lean stream; exiting an acidic gas rich solvent.

Classes IPC  ?

• B01D 53/14 - 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 absorption
• 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 53/52 - Sulfure d'hydrogène
• B01D 53/62 - Oxydes de carbone
• B01D 53/96 - Régénération, réactivation ou recyclage des réactifs
• B01D 63/02 - Modules à fibres creuses
• C10K 1/00 - Purification des gaz combustibles contenant de l'oxyde de carbone

Abrégé

Disclosed in the present invention are an off-site electro-catalytic reaction method and reaction system. The off-site electro-catalytic reaction method comprises: in a battery system, ion pairs in an electrolyte undergoing an electron exchange reaction with an electrode, so as to obtain an oxidation potential or a reduction potential; the electrolyte with the obtained oxidation potential or reduction potential entering an independent reaction system outside the battery system, and undergoing a redox reaction with a reactant in the reaction system, so as to obtain a mixture containing a reaction product; and after separation, the electrolyte, which has undergone the redox reaction, returning to the battery system, so as to obtain the oxidation potential or reduction potential again. By means of the new off-site electro-catalytic tandem reaction technique provided in the present invention, a complex reaction involving gas, liquid and solid phases, etc. can be moved out of the surface of an electrode, and a reaction process is performed outside of a battery, thereby preventing the contamination of the electrode, a catalyst, a separator, etc. by reactants and/or products; and the reaction system built by means of an off-site electro-catalytic synthesis technique operates stably, can be used for fundamental theoretical research, and has practical application significance.

Classes IPC  ?

• C25B 3/29 - Réactions de couplage
• C25B 3/07 - Composés contenant au moins un atome d’oxygène
• C25B 3/20 - Procédés

Abrégé

A method for preparing a methyl ester compound is provided, including: subjecting a raw material of a carboxyl compound, methanol and/or dimethyl ether to an esterification reaction to obtain the methyl ester compound, where the general formula I of the carboxyl compound is R—CH2—COOH, where R is a methoxy or hydroxyl; and the methyl ester compound comprises at least one of methyl methoxyacetate and methyl glycolate. This application also discloses a method for preparing a methyl glycolate, comprising the steps of: a) subjecting methylal and carbon monoxide to a carbonylation reaction to obtain methyl methoxyacetate; b) subjecting the methyl methoxyacetate and water to a hydrolysis reaction to obtain the methyl glycolate; and c) subjecting glycolic acid, methoxyacetic acid, methanol, and dimethyl ether to an esterification reaction to obtain the methyl glycolate.

Classes IPC  ?

• C07C 67/24 - Préparation d'esters d'acides carboxyliques par réaction d'acides carboxyliques ou de leurs dérivés avec une liaison éther carbone-oxygène, p. ex. acétal, tétrahydrofuranne
• B01J 29/08 - Zéolites aluminosilicates cristallinesLeurs composés isomorphes du type faujasite, p. ex. du type X ou Y
• B01J 29/40 - Zéolites aluminosilicates cristallinesLeurs composés isomorphes du type pentasil, p. ex. types ZSM-5, ZSM-8 ou ZSM-11
• B01J 29/65 - Zéolites aluminosilicates cristallinesLeurs composés isomorphes du type ferriérite, p. ex. types ZSM-21, ZSM-35 ou ZSM-38
• B01J 29/70 - Zéolites aluminosilicates cristallinesLeurs composés isomorphes de types caractérisés par leur structure spécifique non prévus dans les groupes
• C07C 67/08 - Préparation d'esters d'acides carboxyliques par réaction d'acides carboxyliques ou d'anhydrides symétriques avec le groupe hydroxyle ou O-métal de composés organiques
• C07C 67/37 - Préparation d'esters d'acides carboxyliques par réaction avec du monoxyde de carbone ou des formiates obtenus par réaction d'éthers avec l'oxyde de carbone

Abrégé

The present invention discloses a bismuth-copper single-atom alloy catalyst, a preparation method and an application thereof. The catalyst includes copper nanoparticles and bismuth atoms. The copper nanoparticles are of a polycrystalline structure, and the bismuth atoms are dispersed in the copper nanoparticles in a single-atom form. The catalyst is prepared by means of thermal decomposing the metal complex and the followed in-situ electroreduction. The preparation method of the bismuth-copper single-atom alloy catalyst of the present invention is simple to operate, and the single-atom bismuth content is adjustable. The single-atom bismuth content can be adjusted by changing reaction conditions. By means of loading mutually isolated bismuth atoms on the copper nanoparticles, the electronic state of copper atoms is adjusted, such that an ability of bismuth-copper single-atom alloy to catalyze carbon-carbon coupling is improved, so as to obtain a higher selectivity of electrocatalytically reducing carbon dioxide to a multi-carbon product, providing a new way for efficient conversion of carbon dioxide.

Classes IPC  ?

• C25B 11/089 - Alliages
• C25B 3/26 - Réduction du dioxyde de carbone
• C25B 11/037 - Électrodes constituées de particules
• C25B 11/065 - Carbone

Abrégé

The present invention relates to the technical field of chemical engineering. Disclosed is a preparation method for acetaldehyde and 1,2-dichloroethane. The preparation method of the present invention comprises: using ethylene glycol and hydrogen chloride as reaction raw materials, and under the action of a catalyst, using multiple stages of tank distillation reactors connected in series to perform reaction at a certain pressure and a certain temperature for continuous preparation of acetaldehyde and 1,2-dichloroethane. The method is characterized by using distillation reactors to continuously bring out the generated low-boiling-point acetaldehyde and dichloroethane, and connecting multiple tank distillation reactors in series to enhance the reaction effect, and the method is a novel method for efficiently producing acetaldehyde and 1,2-dichloroethane.

Classes IPC  ?

• C07C 17/16 - Préparation d'hydrocarbures halogénés par remplacement par des halogènes de groupes hydroxyle
• C07C 19/045 - Dichloro-éthanes
• C07C 17/07 - Préparation d'hydrocarbures halogénés par addition d'halogénures d'hydrogène
• C07C 45/52 - Préparation de composés comportant des groupes C=O liés uniquement à des atomes de carbone ou d'hydrogènePréparation des chélates de ces composés par pyrolyse, réarrangement ou décomposition par déshydratation et réarrangement faisant intervenir deux groupes hydroxyle de la même molécule
• C07C 47/06 - Acétaldéhyde

Abrégé

A multi-disulfide-bond long-chain peptide with neuroprotective activity can reduce cellular calcium influx by inhibiting glutamate receptors to protect cortical neurons from excitotoxicity induced by glutamate. It can be an effective neuroprotective agent.

Classes IPC  ?

• C07K 14/415 - Peptides ayant plus de 20 amino-acidesGastrinesSomatostatinesMélanotropinesLeurs dérivés provenant de végétaux
• A61K 38/00 - Préparations médicinales contenant des peptides

Abrégé

The present application relates to a preparation method for selectively arylated lignin, and arylated lignin. According to the method, lignin is extracted from natural lignin, industrial lignin or a solvent as a raw material, and an arylation reagent and lignin benzyl hydroxyl are subjected to a Friedel-Crafts alkylation reaction to realize selective synthesis of aryl-modified lignin. By utilizing the characteristic that the natural benzyl hydroxyl structure in lignin easily reacts with a nucleophilic reagent, lignin is induced to selectively react with an aromatic derivative such as phenol or phenyl ether, so as to realize directional modification of the lignin. The modification process effectively inhibits self-condensation of lignin, avoids invalid fracture of the β-O-4 aryl ether bond of the lignin under mild conditions, and realizes selective α-arylation modification. The lignin modification method improves the solubility of lignin in an organic solvent, promotes the high-value utilization of lignin, and provides important raw material support for applications such as preparation of renewable chemicals, energy substances, and renewable materials.

Classes IPC  ?

• C07G 1/00 - Dérivés de lignine à bas poids moléculaire
• C08H 8/00 - Composés macromoléculaires dérivés de matériaux lignocellulosiques
• C08G 8/20 - Polymères de condensation obtenus uniquement à partir d'aldéhydes ou de cétones avec des phénols d'aldéhydes de formaldéhyde, p. ex. de formaldéhyde formé in situ avec des phénols polyhydriques
• C08B 1/00 - Traitement préparatoire de la cellulose pour l'obtention de dérivés cellulosiques

Abrégé

An amine-bromine two electron electrolyte of flow battery and the use thereof, and a flow battery are provided. In the electrolyte, an amino compound with an electron-withdrawing group at the ortho-position of an amino group is used to react with bromine charged to a positive valence so as to form an amine-bromine compound, such that positive-valence bromine is stabilized, and a reversible two-electron transfer reaction from bromine ions to amino compounds is achieved. The amine compounds have different solubilities and produce different voltages depending on their substituent groups, and thus have extensive adjustability and applicability for use in acidic, neutral, and weak alkaline flow battery systems. Flow batteries assembled with the electrolyte prepared using this reaction has the advantages of low cost and high energy density, and can achieve a longer cycle life and higher battery efficiency.

Classes IPC  ?

• H01M 8/18 - Éléments à combustible à régénération, p. ex. batteries à flux REDOX ou éléments à combustible secondaires

Abrégé

Disclosed in the present invention are a method for catalytic depolymerization of a lignin derivative, and a lignin depolymerization oil. The method relates to using a lignin derivative containing a 1,1-diphenylmethyl structure; and on the basis of the synergistic catalysis effect of a transition metal catalyst, a hydrogen supply agent and an acidic catalyst in a liquid medium, prepares the lignin depolymerization oil rich in a 1,2-diphenylethyl structured bisphenol and rich in a lignin oligomer. The present invention achieves stereospecific depolymerization of lignin by means of catalyzing an aryl migration reaction of the 1,1-diphenylmethyl structure; different from traditional reactions in which lignin monophenols are target products, the present invention can achieve the stereospecific preparation of a bisphenol product in one step, while coproducing the lignin oligomer. The method involved in the present invention develops the product types of lignin-based bisphenols, and improves the uses of catalytically depolymerizing lignin to prepare high-value chemical products, fuels and polymer materials.

Classes IPC  ?

• C07G 1/00 - Dérivés de lignine à bas poids moléculaire
• C08G 59/06 - Polycondensats contenant plusieurs groupes époxyde par molécule de composés polyhydroxylés avec l'épihalohydrine ou ses précurseurs de polyphénols
• C08H 7/00 - LignineLignine modifiéeProduits dérivés à haut poids moléculaire
• C08J 11/10 - Récupération ou traitement des résidus des polymères par coupure des chaînes moléculaires des polymères ou rupture des liaisons de réticulation par voie chimique, p. ex. dévulcanisation

Abrégé

A gas-containing multivesicular lipid nanoparticle, and a use thereof and a preparation method therefor. The lipid nanoparticle is a multivesicular nanoparticle composed of a lipid vesicle having a core filled with water and a lipid vesicle having a core filled with gas. The lipid nanoparticle is used as a delivery system for a nucleic acid or a small molecule chemical drug, and a corresponding vaccine or pharmaceutical composition is prepared by rapidly mixing raw materials in the presence of ultrasound and a surfactant. The lipid nanoparticle also provides an oxygen-rich or hydrogen-rich environment having a positive biological effect while delivering a nucleic acid or small molecule chemical drug, thereby improving the delivery efficiency of nucleic acids or small molecule chemical drugs. In addition, ultrasound can be applied in vitro to achieve directional explosion of the gas-containing vesicle, thereby further improving the bioavailability and the targeting performance of nucleic acids or small molecule chemical drugs.

Classes IPC  ?

• A61K 9/51 - Nanocapsules
• A61K 9/127 - Vecteurs à bicouches synthétiques, p. ex. liposomes ou liposomes comportant du cholestérol en tant qu’unique agent tensioactif non phosphatidylique
• A61K 47/24 - Composés organiques, p. ex. hydrocarbures naturels ou synthétiques, polyoléfines, huile minérale, gelée de pétrole ou ozocérite contenant des atomes autres que des atomes de carbone, d'hydrogène, d'oxygène, d'halogènes, d'azote ou de soufre, p. ex. cyclométhicone ou phospholipides
• A61K 47/28 - Stéroïdes, p. ex. cholestérol, acides biliaires ou acide glycyrrhétinique
• A61K 33/00 - Préparations médicinales contenant des ingrédients actifs inorganiques

Abrégé

A gas-air mixing structure and a burner, comprising an external supporting structure (2) arranged in a housing (1) and a gas array pipe connected to the external supporting structure (2). An air inlet is connected to one end of the housing (1). A gas mixing channel is provided between the gas array pipe and a mixed gas outlet. The gas array pipe consists of multiple gas pipes (3) arranged in an array, the gas pipes (3) are provided with gas inlets and gas outlets (4), and the gas outlets (4) are arranged on the leeward surfaces of the gas pipes (3). A gas inlet pipe is arranged on the air channel and gas outlet holes (4) are spaced apart on the leeward surfaces of the gas pipes (3) to uniformly mix the gas ejected from the gas outlet holes (4) by utilizing a Coanda effect of air upon a circular pipe.

Classes IPC  ?

• F23D 14/62 - Dispositifs mélangeursTubes mélangeurs

Abrégé

The invention belongs to the technical field of photocatalytic materials. Provided are perovskite tantalum-nitrogen co-doped strontium titanate, and a preparation method therefor and the use thereof. Titanium isopropoxide and tantalum pentachloride are dissolved in methyl alcohol, ethylene glycol, citric acid and strontium carbonate are then added thereto, and after polymerization, organic carbon is removed by means of roasting with air, thereby obtaining tantalum-doped strontium titanate; same is then mixed with a magnesium powder, and the resulting mixture is nitrided in an ammonia gas flow atmosphere; and the resulting reaction product is subjected to acid pickling, water washing and drying, thereby obtaining perovskite tantalum-nitrogen co-doped strontium titanate. Titanium-oxygen bonds are weakened by means of pre-doping with tantalum, and the spatial distribution of a high-content nitrogen dopant in strontium titanate is then achieved by means of a magnesium-powder-assisted nitriding method; therefore, the synthesized catalyst has a wider light absorption range, and has significant photocatalytic activity in both hydrogen production by means of photocatalytic water splitting and oxygen production by means of water splitting.

Classes IPC  ?

• B01J 27/24 - Composés de l'azote
• B01J 37/08 - Traitement thermique
• C01B 3/04 - Production d'hydrogène ou de mélanges gazeux contenant de l'hydrogène par décomposition de composés inorganiques, p. ex. de l'ammoniac

Abrégé

Disclosed in the present invention is a method for detecting a protein having changes in an energy state, and affinity of a ligand to a protein. Specifically, after the energy state of a protein changes, its tolerance to proteolytic cleavage destruction changes. The structure of the protein in a low-energy state is also destroyed under a non-denaturation condition by using a large amount of enzymes, and small peptide fragments, which have molecular weight of less than 5 KDa and can be directly used for bottom-top mass spectrometry analysis, are directly generated. The method has extremely high sensitivity. Quantitative proteomics is used to find enzyme cleavage differential peptide fragments, and proteins to which the differential peptide fragments belong and the positions in the proteins are analyzed, so that a protein having changes in an energy state, and a change region can be determined in the whole proteome range. If the energy state of the protein changes due to addition of a ligand, the method can determine a binding protein and a binding region of the ligand; and the output of a quantitative result on the peptide fragment level further enables the method to determine the local affinity of binding of the ligand to the protein.

Classes IPC  ?

• G01N 33/68 - Analyse chimique de matériau biologique, p. ex. de sang ou d'urineTest par des méthodes faisant intervenir la formation de liaisons biospécifiques par ligandsTest immunologique faisant intervenir des protéines, peptides ou amino-acides

Abrégé

A method for preparing a modified molecular sieve catalyst and a method for producing benzene, toluene and p-xylene by coupling conversion of naphtha and CO2 are provided. Preparing a modified molecular sieve catalyst includes subjecting a molecular sieve to metal modification by using a high temperature hydrothermal method, which includes: (1) preparing a soluble metal salt aqueous solution; (2) placing a zeolite molecular sieve to be metal-modified in the soluble metal salt aqueous solution, and impregnating the same at a temperature of 60-100° C.; and (3) draining the molecular sieve, followed by drying and calcination. Producing benzene, toluene and p-xylene by coupling conversion of naphtha and CO2 includes: (a) preparing a modified molecular sieve catalyst; and (b) enabling a raw material containing naphtha and CO2 to contact with the modified molecular sieve catalyst in a reactor for a reaction to produce benzene, toluene and p-xylene.

Classes IPC  ?

• C07C 6/08 - 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

Abrégé

3423222O, mixing same, and crystallizing at 80-240℃ for 1-60 days, to obtain a molecular sieve DNL; wherein a = 0.1-10.0, b = 0-6.0, c = 0-100.0, q = 0-1.2, m = 0-100, and n = 5-1000; and the organic template agent is selected from 1,5-(N-triethyl) pentane diamine hydroxide, a pyridine compound, or a compound of the structure of formula I. The molecular sieve having a novel framework structure prepared in the present application can be used for synthesizing a SAPO framework structure, is beneficial for subsequent use in the field of catalysis, and can be used in a water adsorption material; and the synthesis process is simple and highly operable.

Classes IPC  ?

• C01B 39/54 - Phosphates, p. ex. composés APO ou SAPO
• C01B 37/08 - Silico-aluminophosphates [composés SAPO]
• B01J 29/85 - Silico-aluminophosphates [composés SAPO]

Abrégé

The present application discloses a method for reversible hydrogen storage in a light-driven metal hydride. The method comprises the following steps: (1) introducing inactive gas into a closed and transparent reactor containing metal hydride powder; (2) applying light to the reactor for dehydrogenation to obtain a dehydrogenation product; and (3) hydrogenating the dehydrogenation product in a hydrogen atmosphere to obtain a metal hydride, wherein the metal hydride is selected from at least one of an alkali metal hydride, an alkaline earth metal hydride, and a rare earth metal hydride, and the valence of the hydrogen element in the metal hydride is -1. In the present application, the metal hydride can be directly driven by light energy and has high reaction activity. Reversible dehydrogenation circulation can be achieved at normal temperature by using specific hydride. The process is simple and suitable for scale production.

Classes IPC  ?

• C01B 3/00 - HydrogèneMélanges gazeux contenant de l'hydrogèneSéparation de l'hydrogène à partir de mélanges en contenantPurification de l'hydrogène
• C01B 6/04 - Hydrures des métaux alcalins, des métaux alcalino-terreux, du béryllium ou du magnésiumLeurs complexes d'addition
• C01B 6/02 - Hydrures des éléments de transitionLeurs complexes d'addition

Abrégé

Disclosed in the present invention are a catalyst for preparing a higher aliphatic alcohol from synthesis gas, and a preparation method therefor and the use thereof, which mainly solve the problems of an existing catalyst system having a low active site concentration and slow diffusion of reactant and product molecules, and achieve both high activity and high selectivity of a higher aliphatic alcohol. In the present invention, by means of a template method, a small-size and multi-scale porous molybdenum sulfide material grows on a proper template; and the material has rich edge sulfur vacancies and is used for preparing a high aliphatic alcohol from synthesis gas after alkali metal modification. The catalyst for preparing a high aliphatic alcohol from synthesis gas provided in the present invention has the characteristics of a high carbon monoxide conversion rate, high selectivity of a higher aliphatic alcohol, good stability, etc., and has very good industrial use prospects and high commercial values.

Classes IPC  ?

• B01J 27/051 - Molybdène
• C07C 29/153 - Préparation de composés comportant des groupes hydroxyle ou O-métal liés à un atome de carbone ne faisant pas partie d'un cycle aromatique à six chaînons par réduction exclusivement des oxydes de carbone avec de l'hydrogène ou des gaz contenant de l'hydrogène caractérisée par le catalyseur utilisé

Abrégé

An alkaline negative electrolyte and alkaline zinc-iron flow battery assembled by same are provided. The alkaline negative electrolyte includes zinc ions, a complexing agent, and alkali; the complexing agent is at least one selected from the group consisting of ethylenediaminetetraacetic acid, ethylene glycol diethyl ether diamine tetraacetic acid, cyclohexane tetraacetic acid, and ethylenediamine tetrapropionic acid; a molar ratio of the zinc ions to the complexing agent is 1:1; and a molar ratio of the complexing agent to the alkali is 1:(3-4). The zinc ions in the negative electrolyte are in form of a complex state, which is used as the negative electrolyte to assemble and obtain the alkaline zinc-iron flow battery, solves the problem of electrolyte migration in alkaline zinc-iron flow battery and improves the cycling stability of the battery; moreover, it improves the low-temperature performance of the battery, and broadens the operating temperature range of alkaline zinc-iron flow battery.

Classes IPC  ?

• H01M 8/04186 - Dispositions pour la commande des paramètres des réactifs, p. ex. de la pression ou de la concentration des réactifs chargés en liquide ou en électrolyte
• H01M 8/18 - Éléments à combustible à régénération, p. ex. batteries à flux REDOX ou éléments à combustible secondaires

Abrégé

A method for preparing p-xylene is provided. Raw materials containing methanol, naphtha and CO2 are introduced into a reactor filled with a catalyst for a reaction to produce p-xylene. By adding the methanol, the product distribution is adjusted, and the selectivity of p-xylene is obviously improved. In addition, components containing benzene and toluene in aromatic hydrocarbon products are returned to a reaction system and co-fed with the raw materials for a reaction to produce p-xylene, so that cyclic utilization of the raw materials is achieved, and the method has extremely high economic benefits. The method has a simple process and high feasibility, can greatly improve the selectivity and yield of p-xylene, has an important application value, and provides a new way for large-scale utilization of CO2.

Classes IPC  ?

• C07C 15/08 - Xylènes
• B01J 29/40 - Zéolites aluminosilicates cristallinesLeurs composés isomorphes du type pentasil, p. ex. types ZSM-5, ZSM-8 ou ZSM-11
• B01J 37/02 - Imprégnation, revêtement ou précipitation

Abrégé

Disclosed in the present invention are a system and method for hydrogen production by water electrolysis applicable to a floating offshore wind turbine. The system is installed on the foundation of a floating offshore wind turbine, and the electric energy generated by the floating offshore wind turbine is utilized on-site to perform hydrogen production by seawater electrolysis. The system comprises an alkaline electrolytic cell unit, a hydrogen separation and cooling unit, a hydrogen purification and cooling unit, an oxygen separation and cooling unit, an alkaline solution filtration and circulation unit, an alkaline solution cooling unit, a negative-pressure seawater desalination unit, a raw freshwater storage and supply unit, an expansion tank unit, and a circulating freshwater transportation unit. According to the present invention, closed circulating freshwater is used as a cooling medium for the cooling units in hydrogen production by alkaline water electrolysis, absorbed heat is used as a heat source for the negative-pressure seawater desalination unit to perform seawater desalination, and a closed freshwater circulation is formed to perform heat circulation and transfer, thereby achieving the self-sufficiency of freshwater. The present invention is applicable to a distributed seawater hydrogen production scenario of the floating offshore wind turbine, and a wind-power-hydrogen-freshwater one-stop device system is formed, thus accelerating the development of offshore green hydrogen production technology.

Classes IPC  ?

• C25B 9/65 - Dispositifs pour l'alimentation en courantConnexions d'électrodesConnexions électriques intercellulaires
• F03D 80/60 - Refroidissement ou chauffage des mécanismes moteurs à vent
• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau

Abrégé

Disclosed in the present invention is a system and method for coupling water electrolysis for hydrogen production with seawater desalination. Functional modules for coupling water electrolysis for hydrogen production with seawater desalination mainly comprise an alkaline electrolyzer module, an oxygen separation module, a hydrogen separation module, an alkali liquor filtering and circulation module, a negative-pressure seawater desalination module, a fresh water supply module and a hydrogen purification module. The present invention directly uses an alkali liquor needing to be cooled to heat up seawater in a negative pressure environment, thus not only cooling the alkali liquor, but also utilizing the heat dissipated during alkali liquor cooling for low-temperature seawater desalination; and the qualified fresh water is used as a raw material for water electrolysis to be supplemented to the alkaline electrolyzer module. The present invention replaces an alkali liquor cooler and an auxiliary cooling water system with the negative-pressure seawater desalination module, thus not only reducing the energy consumption for water electrolysis for hydrogen production, but also relieving dependence of water electrolysis for hydrogen production on fresh water resources. In addition, the present invention not only expands use scenarios of alkaline water electrolysis for hydrogen production, but also facilitates popularization and application of the offshore green hydrogen preparation technology, thus having large application prospects.

Classes IPC  ?

• C02F 1/04 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par chauffage par distillation ou évaporation
• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• C02F 103/08 - Eau de mer, p. ex. pour le dessalement

Abrégé

An efficient oxyhydrogen generation device for medical care has a housing, an upper cover and a bottom cover which form a main frame. The housing is composed of a front part and a rear part, the bottom cover being fastened at the bottom of the housing to form a space for accommodating an electrolytic cell, a water supply tank, a water supply tank upper cover and a secondary water tank. The upper cover is fastened on the upper part of the housing and is provided with an atomized gas circulation part, a supply part for supplying water to the water supply tank, and a control panel for controlling the operation of an electrolyzing water hydrogen-oxygen generator. The oxyhydrogen generated by electrolysis sequentially enters the water supply tank and the secondary water tank by means of a gas guide plate and is cleaned. discharged from a gas circulation part.

Classes IPC  ?

• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• C25B 9/67 - Moyens de chauffage ou de refroidissement
• C25B 9/73 - Assemblages comprenant plusieurs cellules du type filtre-presse
• C25B 15/023 - Mesure, analyse ou test pendant la production électrolytique
• C25B 15/08 - Alimentation ou vidange des réactifs ou des électrolytesRégénération des électrolytes

Abrégé

A preparation method of a polyester is provided. The method includes the following steps: allowing a raw material including a diacid and a diol to contact a monoclinic nano-TiO2 (namely, TiO2(B)) catalyst, and conducting an esterification reaction and a polycondensation reaction sequentially to obtain the polyester. The method can efficiently catalyze the synthesis of the polyester and avoid from yellowing of the polyester. Meanwhile, nano-TiO2(B) is polymerized in situ in the polyester, such that a structure of nano-TiO2(B) can adjust the structure and properties of a polyester matrix and effectively improve the mechanical, thermal, and barrier properties of the polyester.

Classes IPC  ?

• C08G 63/85 - Germanium, étain, plomb, arsenic, antimoine, bismuth, titane, zirconium, hafnium, vanadium, niobium, tantale ou leurs composés
• B01J 35/34 - Propriétés mécaniques
• C08G 63/183 - Acides téréphtaliques
• C08G 63/672 - Acides dicarboxyliques et composés dihydroxylés

Abrégé

222 consumption of the reaction can be effectively reduced. There is no need to construct two parallel devices of "benzene-cyclohexene-cyclohexanol-adipic acid" and "cyclohexane-KA oil-adipic acid" to realize the use of cyclohexane in the production process of adipic acid. The synthetic route is mild in reaction conditions and suitable for continuous and stable large-scale production.

Classes IPC  ?

• C07C 35/08 - Composés comportant au moins un groupe hydroxyle ou O-métal lié à un atome de carbone d'un cycle autre qu'un cycle aromatique à six chaînons monocycliques contenant des cycles à six chaînons
• C07C 29/149 - Préparation de composés comportant des groupes hydroxyle ou O-métal liés à un atome de carbone ne faisant pas partie d'un cycle aromatique à six chaînons par réduction d'un groupe fonctionnel contenant de l'oxygène de groupes contenant C=O, p. ex. —COOH d'acides carboxyliques ou de leurs dérivés avec de l'hydrogène ou des gaz contenant de l'hydrogène
• C07C 29/04 - Préparation de composés comportant des groupes hydroxyle ou O-métal liés à un atome de carbone ne faisant pas partie d'un cycle aromatique à six chaînons par addition de groupes hydroxyle à des liaisons carbone-carbone non saturées, p. ex. à l'aide de H2O2 par hydratation de liaisons doubles carbone-carbone
• C07C 51/31 - Préparation d'acides carboxyliques, de leurs sels, halogénures ou anhydrides par oxydation de composés cycliques avec ouverture du cycle

Abrégé

The present invention relates to the field of electrochemical electrode preparation, and in particular relates to an integral metal phosphide porous electrode. The integral metal phosphide porous electrode comprises a matrix material and a quantitative phosphating synthesis method, wherein the matrix material is nickel, iron, an intermetallic compound thereof and red phosphorus, and is polycrystalline or multiphase. A high-activity and high-stability integrated nickel-iron phosphide porous electrode is prepared by combining a phosphating reaction between a metal and red phosphorus and a space pore-forming particle method. Compared with a traditional load-type integral electrode, the integral electrode of the present invention has the advantages of a hierarchical porous microstructure, a controllable height of the microscopic pore structure and a controllable target phosphating product, thereby showing better electrocatalytic performance. Specifically, the initial potential of an electrolytic water oxygen evolution reaction is significantly reduced, overpotential under large current conditions is significantly reduced, and stability under a large current is greatly improved.

Classes IPC  ?

• C25B 11/042 - Électrodes à base d’un seul matériau
• B22F 3/11 - Fabrication de pièces ou d'objets poreux
• C25B 11/031 - Électrodes poreuses

Abrégé

The present invention relates to the technical field of fuel cells. Disclosed are a fuel cell electrode catalytic layer and a membrane electrode comprising same. The fuel cell electrode catalytic layer is formed by the mutual bonding and accumulation of resin particles the surfaces of which are coated with catalyst particles, and staggered pore channel structures are arranged between the resin particles, so that the transport capability of a reaction material in the catalytic layer is improved, and a catalyst covering the outer layer of a resin has a relatively high utilization rate. The present invention also relates to a preparation method for the fuel cell electrode catalytic layer, comprising: first, under a heating condition by means of an electrostatic effect, adsorbing and bonding, to the surface of a membrane, powder prepared from the catalyst and the resin, and further curing the powder by means of hot pressing to form a stable catalytic layer.

Classes IPC  ?

• H01M 4/86 - Électrodes inertes ayant une activité catalytique, p. ex. pour piles à combustible
• H01M 4/90 - Emploi de matériau catalytique spécifié
• H01M 8/1004 - Éléments à combustible avec électrolytes solides caractérisés par les ensembles membrane-électrodes [MEA]
• H01M 4/88 - Procédés de fabrication

Abrégé

222 consumption of the reaction can be effectively reduced. The synthetic route is mild in reaction conditions and suitable for continuous and stable large-scale production.

Classes IPC  ?

• C07C 55/14 - Acide adipique
• C07C 69/34 - Esters d'acides acycliques polycarboxyliques saturés dont un groupe carboxyle estérifié est lié à un atome de carbone acyclique
• C07C 67/04 - Préparation d'esters d'acides carboxyliques par réaction d'acides carboxyliques ou d'anhydrides symétriques sur des liaisons carbone-carbone non saturées
• C07C 69/14 - Esters d'acide acétique de composés monohydroxylés

Abrégé

Disclosed in the present invention are a naphthalene-type compound, and a preparation method therefor and a use thereof. The naphthalene-type compound has a molecular structure substituted with polyhydroxyl, polybenzylamine, and quaternary ammonium or multiple quaternary ammonium functional groups, and compared with a raw material, the naphthalene-type compound has greatly improved water solubility in an acidic aqueous solution. An electrochemical reaction has low raw material costs and a high reaction yield, is carried out under a normal temperature and pressure condition without adding additional catalysts, and is carried out under air conditions without inert gas protection.

Classes IPC  ?

• H01M 8/18 - Éléments à combustible à régénération, p. ex. batteries à flux REDOX ou éléments à combustible secondaires
• H01M 4/86 - Électrodes inertes ayant une activité catalytique, p. ex. pour piles à combustible
• C01G 53/00 - Composés du nickel

Abrégé

A process for producing polyphenylene oxide by using a tubular reactor, relating to the technical field of polymer production and reactor design. The tubular reactor mainly comprises a liquid-phase mixer (5), a reactor main body (1), and a gas-liquid separator (8) that are sequentially connected in series. An outlet of the liquid-phase mixer (5) is connected to the bottom side wall of the reactor main body (1). A gas inlet (6) is connected to the bottom of the reactor main body (1). A gas distributor (7) is disposed between the gas inlet (6) and the reactor main body (1). An inner component (2) is disposed in the reactor main body (1). A top outlet of the reactor main body (1) is connected to the gas-liquid separator (8). Oxidative coupling is performed on 2,6-dimethylphenol by using the tubular reactor to prepare the polyphenylene oxide, and the obtained reaction mixed solution undergoes separation to obtain a polyphenylene oxide product. The problems of a large back mixing degree, wide product molecular weight distribution, difficulty in implementing molecular weight regulation, and the like in batch stirred tank reactors are resolved. Continuous production operations of reaction and a separation process of a catalyst, a solvent, and a product are also implemented, facilitating industrial production.

Classes IPC  ?

• C08G 65/44 - Composés macromoléculaires obtenus par des réactions créant une liaison éther dans la chaîne principale de la macromolécule à partir de composés hydroxylés ou de leurs dérivés métalliques dérivés des phénols par oxydation des phénols
• B01J 19/18 - Réacteurs fixes avec éléments internes mobiles
• B01J 19/00 - Procédés chimiques, physiques ou physico-chimiques en généralAppareils appropriés

Abrégé

A method for removing acidic gases from a post combustion process stream comprises the steps of: receiving the post combustion process stream (25) into hollow fibres of at least one MBC cell (10), each hollow fibre gas permeable, liquid impermeable; passing a lean solvent in contact with an external surface of the hollow fibres; exchanging the acidic gases into the solvent through the hollow fibres; venting an acidic gas lean stream (45); and exiting an acidic gas rich solvent.

Classes IPC  ?

• B01D 53/14 - 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 absorption
• B01D 53/52 - Sulfure d'hydrogène
• B01D 53/62 - Oxydes de carbone
• B01D 53/96 - Régénération, réactivation ou recyclage des réactifs
• 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 53/18 - Unités d'absorptionDistributeurs de liquides
• B01D 53/40 - Composants acides
• F23J 15/04 - Aménagement des dispositifs de traitement de fumées ou de vapeurs des purificateurs, p. ex. pour enlever les matériaux nocifs utilisant des fluides de lavage

Abrégé

The present invention belongs to the technical field of epichlorohydrin production, and disclosed is a process for preparing epichlorohydrin by directly oxidizing chloropropene by using a liquid-solid circulating fluidized bed reactor. In the present invention, a liquid-solid circulating fluidized bed reactor is used for preparing epichlorohydrin by directly oxidizing chloropropene with hydrogen peroxide. The liquid-solid circulating fluidized bed reactor mainly comprises a reactor, a liquid-solid separator, a liquid extractor, a spent inclined tube, a regenerator, a catalyst bin, a regeneration inclined tube, etc. In the process, the liquid-solid circulating fluidized bed reactor is used to replace a traditional stirred tank reactor, such that the heat and mass transfer rate between liquid and solid phases is enhanced in the reactor, the back mixing degree in the reactor is reduced, the reaction rate is greatly increased, the reaction time is shortened, side reactions are inhibited, and the effective utilization rate of hydrogen peroxide and the selectivity of epichlorohydrin are increased. The present invention provides a brand-new process for the production of epichlorohydrin, and is beneficial for reducing the production cost of epichlorohydrin.

Classes IPC  ?

• C07D 301/12 - Synthèse du cycle de l'oxirane par oxydation de composés non saturés, ou de mélanges de composés non saturés et de composés saturés par le peroxyde d'hydrogène ou par des peroxydes ou peracides inorganiques
• C07D 301/32 - SéparationPurification
• C07D 303/08 - Composés contenant des cycles oxirane avec des radicaux hydrocarbonés substitués par des atomes d'halogènes, des radicaux nitro ou des radicaux nitroso
• B01J 8/28 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés les particules étant fluidisées selon la technique du "lit fluidisé" comportant au moins deux lits fluidisés, p. ex. installations de réaction et de régénération superposés
• B01J 8/18 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés les particules étant fluidisées

Abrégé

A bismuth-copper single-atom alloy material, and a preparation method therefor and a use thereof. A catalyst comprises copper nanoparticles and bismuth atoms; the copper nanoparticles are of a polycrystalline structure; the bismuth atoms are dispersed in the copper nanoparticles in the form of single atoms. The catalyst is prepared by means of thermal decomposition of a metal complex and a subsequent in-situ electroreduction method. The preparation method for the bismuth-copper single-atom alloy is simple, the content of single-atom bismuth is adjustable, and the content of single-atom bismuth can be controlled by changing a reaction condition. By loading bismuth atoms isolated from each other on copper nanoparticles and adjusting the electronic state of copper atoms, the capability of the bismuth-copper single-atom alloy to catalyze carbon-carbon coupling is improved, thereby obtaining high selectivity for electrocatalytic reduction of carbon dioxide to multi-carbon products, and providing a new way for efficient conversion of carbon dioxide.

Classes IPC  ?

• C25B 11/089 - Alliages
• C25B 11/065 - Carbone
• C25B 3/26 - Réduction du dioxyde de carbone
• C25B 3/07 - Composés contenant au moins un atome d’oxygène
• C25B 3/03 - Hydrocarbures acycliques ou cycliques
• C25C 1/12 - Production, récupération ou affinage électrolytique des métaux par électrolyse de solutions du cuivre
• C22C 9/00 - Alliages à base de cuivre
• B22F 1/07 - Poudres métalliques caractérisées par des particules ayant une structure nanométrique
• B82Y 30/00 - Nanotechnologie pour matériaux ou science des surfaces, p. ex. nanocomposites
• B82Y 40/00 - Fabrication ou traitement des nanostructures

Abrégé

The present invention belongs to the field of water electrolysis for hydrogen production. Disclosed are a PEM water electrolysis bipolar plate and a manufacturing method. The present invention uses a stainless steel plate as a substrate. The substrate is provided with through hole structures which have the same structure as flow channel ridges and positions of which match positions of the flow channel ridges. The upper surface and the lower surface of the substrate are both provided with a titanium layer, and the titanium layers fill the through hole structures so as to enable the upper titanium layer and the lower titanium layer to be connected. A spherical dehydrogenated titanium powder layer and a functional coating are successively provided on the surface of each of the titanium layers. The functional coatings form the flow channel ridges, flow disturbing pillars and a hydrogen-oxygen frame of the bipolar plate. The pore diameter of the spherical dehydrogenated titanium powder layers is 100 nm to 10 μm; and the titanium layers, the spherical dehydrogenated titanium powder layers and the functional coatings all contain titanium powders. The present invention can improve the conductivity of the bipolar plate while using a low-cost stainless steel plate, thus improving the overall properties of the water electrolysis bipolar plate.

Classes IPC  ?

• C25B 11/036 - Électrodes bipolaires
• C25B 11/04 - ÉlectrodesLeur fabrication non prévue ailleurs caractérisées par le matériau
• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• C23C 4/08 - Matériaux métalliques ne contenant que des éléments métalliques
• C23C 4/134 - Pulvérisation plasma
• B41M 1/28 - Impression sur d'autres surfaces que le papier ordinaire sur métaux
• B41M 5/00 - Procédés de reproduction ou méthodes de reproduction ou de marquageMatériaux en feuilles utilisés à cet effet

Abrégé

A method for removing acidic gases from a post combustion process stream, the method comprising the steps of: receiving the post combustion process stream into hollow fibres of at least one MBC cell, each hollow fibre gas permeable, liquid impermeable; passing a lean solvent in contact with an external surface of said hollow fibres; exchanging said acidic gas into the solvent through the hollow fibre; venting a treated lean gas stream; exiting an acidic gas rich solvent.

Classes IPC  ?

• C10J 3/84 - Moyens d'extraction des gaz avec moyens de dépoussiérage ou de dégoudronnage du gaz
• B01D 69/08 - Membranes à fibres creuses
• B01D 53/14 - 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 absorption
• 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 53/96 - Régénération, réactivation ou recyclage des réactifs

Abrégé

A circulating fluidized bed reaction regeneration device and a use method. The device comprises a fluidized bed reactor (1), a fluidized bed regenerator (2) and a riser reactor (3). The fluidized bed reactor (1) is used for introducing a naphtha raw material and a methanol raw material, wherein the naphtha raw material is brought into contact with a catalyst from the riser reactor (3), so as to perform a reaction to generate a BTX-containing product gas stream and a spent catalyst, and the methanol raw material undergoes a methylation reaction with benzene and toluene in the BTX-containing product gas stream to generate p-xylene; the product gas stream is subjected to gas-solid separation, the separated product gas is conveyed to a downstream section, unconverted naphtha is returned as a raw material to the fluidized bed reactor, part of a low-carbon alkane is returned as a raw material to the riser reactor (3), and the spent catalyst is introduced into the fluidized bed regenerator (2); and an inlet of the riser reactor (3) is connected to the fluidized bed regenerator (2), and an outlet of the riser reactor (3) is connected to the fluidized bed reactor (1). The use method comprises: preparing an aromatic hydrocarbon by using a circulating fluidized bed reaction regeneration device and a metal molecular sieve bifunctional catalyst.

Classes IPC  ?

• B01J 8/26 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés les particules étant fluidisées selon la technique du "lit fluidisé" comportant au moins deux lits fluidisés, p. ex. installations de réaction et de régénération
• B01J 8/18 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés les particules étant fluidisées
• C07C 15/08 - Xylènes

Abrégé

3455 hydrocarbons obtained by means of separation of the product gas enter the light hydrocarbon aromatization reactor (3) to be further converted into components such as aromatic hydrocarbons.

Classes IPC  ?

• B01J 8/26 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés les particules étant fluidisées selon la technique du "lit fluidisé" comportant au moins deux lits fluidisés, p. ex. installations de réaction et de régénération
• C07C 2/00 - Préparation d'hydrocarbures à partir d'hydrocarbures contenant un plus petit nombre d'atomes de carbone
• C07C 5/393 - Préparation d'hydrocarbures à partir d'hydrocarbures contenant le même nombre d'atomes de carbone par déshydrogénation avec formation d'hydrogène libre avec isomérisation simultanée avec cyclisation en un cycle aromatique à six chaînons, p. ex. déshydrogénation du n-hexane en benzène
• C07C 15/04 - Benzène
• C07C 15/06 - Toluène
• C07C 15/08 - Xylènes
• C10G 35/14 - Réformage catalytique avec des catalyseurs mobiles selon la technique du "lit fluidisé"

Abrégé

A method for removing acidic gases from a post combustion process stream, the method comprising the steps of: receiving the post combustion process stream into hollow fibres of at least one MBC cell, each hollow fibre gas permeable, liquid impermeable; passing a lean solvent in contact with an external surface of said hollow fibres; exchanging said acidic gas into the solvent through the hollow fibre; venting an acidic gas lean stream; exiting an acidic gas rich solvent.

Classes IPC  ?

• 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 69/08 - Membranes à fibres creuses

Abrégé

The present application discloses a naphtha and methanol based aromatic hydrocarbon preparation and olefin co-production fluidized bed device and a method. By using the device, under the action of a catalyst, naphtha reacts with methanol to generate product gas using aromatic hydrocarbon and low-carbon olefin as main components. According to the method of the present application, straight-chain and branched-chain aliphatic hydrocarbon can be highly selectively converted into aromatic hydrocarbon efficiently, production of para-xylene is increased by means of the methylation reaction of aromatic hydrocarbon, and the content of para-xylene in a xylene mixture can reach 75 wt%. According to a naphtha and methanol based aromatic hydrocarbon preparation reactor in the present application, production of para-xylene is increased by controlling the process of a cascade reaction (naphtha→benzene and toluene→para-xylene); in addition, by means of the methylation reaction of benzene, toluene, and methanol, heat is provided in situ for a naphtha and methanol based aromatic hydrocarbon preparation reaction, so that self-heat balance is achieved.

Classes IPC  ?

• C07C 2/86 - Préparation d'hydrocarbures à partir d'hydrocarbures contenant un plus petit nombre d'atomes de carbone par condensation d'un hydrocarbure et d'un non-hydrocarbure
• C07C 4/06 - Procédés catalytiques
• C07C 1/20 - Préparation d'hydrocarbures à partir d'un ou plusieurs composés, aucun d'eux n'étant un hydrocarbure à partir de composés organiques ne renfermant que des atomes d'oxygène en tant qu'hétéro-atomes
• C07C 11/04 - Éthylène
• B01J 8/26 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés les particules étant fluidisées selon la technique du "lit fluidisé" comportant au moins deux lits fluidisés, p. ex. installations de réaction et de régénération

Abrégé

Disclosed in the present application are a fluidized bed device and method for preparing aromatic hydrocarbons from naphtha. The device at least comprises a light hydrocarbon aromatization reactor and a naphtha-to-aromatics reactor, which are connected in series. A high-temperature regenerated catalyst first enters the light hydrocarbon aromatization reactor, is cooled and then enters the naphtha-to-aromatics reactor. The method of the present application comprises: preparing aromatic hydrocarbons by using the device and a metal molecular sieve bifunctional catalyst, wherein naphtha can be converted into a product gas containing components such as aromatic hydrocarbons and light alkanes under the action of the catalyst, and the light alkanes, etc., separated from the product gas enter the light hydrocarbon aromatization reactor to be further converted into aromatic hydrocarbons and other components. The method of the present application can realize efficient high-selectivity conversion of linear and branched aliphatic hydrocarbons into aromatic hydrocarbons, and the content of p-xylene in a xylene mixture is greater than 50 wt%.

Classes IPC  ?

• C07C 15/08 - Xylènes
• 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
• C07C 4/06 - Procédés catalytiques
• 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

Disclosed in the present application are an alkali metal hydride, a preparation method and the use. The preparation method at least comprises: subjecting raw materials including an alkali metal, an organic solvent and hydrogen to ball milling in an inactive atmosphere, so as to obtain the alkali metal hydride. The alkali metal hydride disclosed in the present invention has a uniform particle size, and has wide application prospects in the fields of hydrogen storage, heat storage and catalytic synthesis; and the method involves a simple preparation process, is suitable for large-scale and low-cost amplification and has very good development prospects and practical application value.

Classes IPC  ?

• C01B 6/04 - Hydrures des métaux alcalins, des métaux alcalino-terreux, du béryllium ou du magnésiumLeurs complexes d'addition

Abrégé

xx, where RE represents a rare earth metal and x ranges from 1-10. The described hydrogen anion conductor has excellent room temperature and even low temperature conductivity properties.

Classes IPC  ?

• C01F 17/20 - Composés ne contenant que des métaux des terres rares comme l'élément métallique
• C01B 6/00 - Hydrures de métauxMonoborane ou diboraneLeurs complexes d'addition

Abrégé

The present invention relates to the technical fields of electrocatalysis and chemical industry, and specifically relates to an electrocatalytic water oxidation homogeneous diatomic catalyst, and a preparation method therefor and a use thereof. The catalyst comprises a carrier and a homogeneous diatomic active site having an adjacency structure, and the active site is anchored in the carrier; the carrier is one or more than two of an oxide, a hydroxide, and an oxyhydroxide of a 3d transition metal; a coordination structure is formed between the two atoms and the carrier. The intrinsic activity of a diatomic dispersed catalytic material prepared by the method in an electrocatalytic water oxidation reaction is equivalent to that of the existing natural photosynthetic system II having the highest efficiency, the water oxidation initial potential is merely 170 mV, and the stability is kept for 650 hours under a current density of 20 mA cm-2-; and the preparation method is simple and has low cost.

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 11/075 - Électrodes comportant des électro-catalyseurs sur un substrat ou un support caractérisées par le matériau électro-catalytique formé d’un seul élément catalytique ou composé catalytique
• C25B 11/081 - Métal noble
• C25B 11/067 - Composé inorganique, p. ex. oxyde d'indium-étain, silice ou oxydes de titane
• 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
• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau

Abrégé

The present application provides a synthesis method for lithium carbodiimide, comprising the following steps: reacting lithium hydride and a carbon source substance in a nitrogen atmosphere to obtain lithium carbodiimide. The present invention uses abundant and cheap nitrogen molecules as a nitrogen source to prepare lithium carbodiimide. The prepared lithium carbodiimide has high purity. The preparation process is simple, easy to scale u, and does not require further separation and purification.

Classes IPC  ?

• C07C 267/00 - Diimides carboniques

Abrégé

A method for preparing glycolic acid through hydrolysis of alkoxyacetate is provided. The method includes: subjecting raw materials including the alkoxyacetate and water to a reaction in the presence of an acidic molecular sieve catalyst to produce the glycolic acid, where the alkoxyacetate is at least one selected from the group consisting of compounds with a structural formula shown in formula I; and in formula I, R1 and R2 each are independently any one selected from the group consisting of C1-C5 alkyl groups. The glycolic acid production method in the present application can be implemented by a traditional fixed-bed reactor under an atmospheric pressure, which is very suitable for continuous production.

Classes IPC  ?

• C07C 59/06 - Acide glycolique

Abrégé

A method for preparing glycolic acid and methyl glycolate through hydrolysis of methyl methoxyacetate and methoxyacetic acid is provided. The method includes allowing raw materials including methyl methoxyacetate, methoxyacetic acid, and water to contact and react with a catalyst to produce glycolic acid and methyl glycolate, where the catalyst is at least one selected from the group consisting of a solid acid catalyst, a liquid acid catalyst, a solid base catalyst, and a liquid base catalyst. The method for preparing glycolic acid and methyl glycolate in the present application can be implemented by a traditional fixed-bed reactor, tank reactor, or catalytic distillation reactor under an atmospheric pressure, which is very suitable for continuous production.

Classes IPC  ?

• C07C 51/377 - Préparation d'acides carboxyliques, de leurs sels, halogénures ou anhydrides par des réactions ne créant pas de groupes carboxyle par élimination d'hydrogène ou de groupes fonctionnelsPréparation d'acides carboxyliques, de leurs sels, halogénures ou anhydrides par des réactions ne créant pas de groupes carboxyle par hydrogénolyse de groupes fonctionnels
• C07C 67/31 - Préparation d'esters d'acides carboxyliques par modification de la partie acide de l'ester sans introduction d'un groupe ester par introduction de groupes fonctionnels avec de l'oxygène lié uniquement par liaison simple

Abrégé

A protective film sequentially includes a release film, a low-viscosity silica gel layer, a high-viscosity silica gel layer and a substrate from top to bottom. A high-viscosity organosilicon adhesive, a hydroxyl-terminated polydimethylsiloxane, a curing agent, an additive and a solvent are coated on a polyester film. A low-viscosity organosilicon adhesive, the hydroxyl-terminated polydimethylsiloxane, the curing agent, the additive and the solvent are mixed and costed on the polyester film complex, which is pressed with the release film to obtain a silica gel protective film for fuel cells. A proton exchange membrane is coated with a catalyst to form a first catalyst layer, the protective film is adhered to the surface of the first catalyst layer, the second side of the proton exchange membrane is coated, and the silica gel protective film is peeled off after the coating is finished to obtain a CCM for a fuel cell.

Classes IPC  ?

• C09J 7/25 - Matières plastiquesMatières plastiques métallisées à base de composés macromoléculaires obtenus par des réactions autres que celles faisant intervenir uniquement des liaisons non saturées carbone-carbone
• C09J 7/38 - Adhésifs sensibles à la pression
• C09J 11/08 - Additifs macromoléculaires
• C09J 183/06 - Polysiloxanes contenant du silicium lié à des groupes contenant de l'oxygène
• H01M 4/88 - Procédés de fabrication

Abrégé

Disclosed is a process for producing epoxypropane by using an HPPO method of a liquid-solid circulating fluidized bed reaction-regeneration system, which belongs to the technical field of epoxypropane production. In the present invention, by means of the liquid-solid circulating fluidized bed reaction-regeneration system, hydrogen peroxide is used to directly oxidize propylene to prepare epoxypropane. The liquid-solid circulating fluidized bed reaction-regeneration system mainly comprises a catalyst regenerator, a feeding inclined pipe, a lifting pipe reactor, a liquid-solid separator, a return inclined pipe and other components. In the process, the liquid-solid circulating fluidized bed reaction-regeneration system is used for replacing a traditional tubular fixed bed reactor, the liquid-solid interphase heat transfer and mass transfer rate is enhanced in the reactor, the reaction rate is greatly increased, the reaction time is shortened, side reactions are inhibited, and the effective utilization rate of hydrogen peroxide and the selectivity of epoxypropane are increased. The present invention provides a brand-new process for the production of epoxypropane, which is beneficial to reducing the production cost of epoxypropane.

Classes IPC  ?

• C07D 303/04 - Composés contenant des cycles oxirane contenant uniquement des atomes d'hydrogène et de carbone en plus des atomes d'oxygène des cycles
• C07D 301/12 - Synthèse du cycle de l'oxirane par oxydation de composés non saturés, ou de mélanges de composés non saturés et de composés saturés par le peroxyde d'hydrogène ou par des peroxydes ou peracides inorganiques
• C07D 301/32 - SéparationPurification

Abrégé

Disclosed in the present invention is a method for detecting a protein having changes in an energy state, and affinity of a ligand to a protein. Specifically, after the energy state of a protein changes, the tolerance to enzyme cleavage destruction changes, the structure of the protein in a low-energy state is also destroyed under a non-denaturation condition by using a large amount of enzymes, and a small peptide fragment which has a molecular weight of less than 5 KDa and can be directly used for bottom-top mass spectrometry analysis is directly generated. The method has extremely high sensitivity, and quantitative proteomics is used to find enzyme cleavage differential peptide fragments, and proteins to which the differential peptide fragments belong and the positions in the proteins are analyzed, so that a protein having changes in an energy state, and a change region can be determined in the whole proteome range. If the energy state of the protein changes due to addition of a ligand, the method can determine a binding protein and a binding region of the ligand; and the output of a quantitative result on the peptide fragment level further enables the method to determine the local affinity of binding of the ligand to the protein.

Classes IPC  ?

• G01N 33/68 - Analyse chimique de matériau biologique, p. ex. de sang ou d'urineTest par des méthodes faisant intervenir la formation de liaisons biospécifiques par ligandsTest immunologique faisant intervenir des protéines, peptides ou amino-acides
• G01N 27/62 - Recherche ou analyse des matériaux par l'emploi de moyens électriques, électrochimiques ou magnétiques en recherchant l'ionisation des gaz, p. ex. des aérosolsRecherche ou analyse des matériaux par l'emploi de moyens électriques, électrochimiques ou magnétiques en recherchant les décharges électriques, p. ex. l'émission cathodique
• C12P 21/06 - Préparation de peptides ou de protéines préparés par hydrolyse d'une liaison peptidique, p. ex. hydrolysats
• G16B 35/00 - TIC spécialement adaptées aux bibliothèques combinatoires in silico d’acides nucléiques, de protéines ou de peptides

Abrégé

The present invention provides a method for preparing aromatic hydrocarbons from methanol and/or dimethyl ether. The method comprises: making a material containing methanol and/or dimethyl ether contact a catalyst for reaction to obtain aromatic hydrocarbons, wherein the catalyst is a metal-modified molecular sieve catalyst, and the pressure of the reaction is 7-15 MPa. Compared with the prior art, the reaction of methanol and dimethyl ether to aromatic hydrocarbons under high-pressure atmosphere in the method provided by the present application can improve and stabilize the selectivity of aromatic hydrocarbons, especially BTX, and prolong the single-pass life of the catalyst.

Classes IPC  ?

• C07C 1/20 - Préparation d'hydrocarbures à partir d'un ou plusieurs composés, aucun d'eux n'étant un hydrocarbure à partir de composés organiques ne renfermant que des atomes d'oxygène en tant qu'hétéro-atomes
• C07C 15/04 - Benzène
• C07C 15/06 - Toluène
• C07C 15/08 - Xylènes
• B01J 29/40 - Zéolites aluminosilicates cristallinesLeurs composés isomorphes du type pentasil, p. ex. types ZSM-5, ZSM-8 ou ZSM-11
• B01J 29/46 - Métaux du groupe du fer ou cuivre
• B01J 29/00 - Catalyseurs contenant des tamis moléculaires

Abrégé

xyzz composite metal oxide catalyst, so as to synthesize a target product, i.e., methylcyclopentadiene. The present invention has a simple process line, is convenient for catalyst preparation, is environmentally friendly, and achieves direct conversion from cyclopentanone and methanol to high value-added methylcyclopentadiene.

Classes IPC  ?

• C07C 13/15 - Hydrocarbures monocycliques ou leurs dérivés hydrocarbonés acycliques à cycle à cinq chaînons à cycle du cyclopentadiène
• C07C 1/207 - Préparation d'hydrocarbures à partir d'un ou plusieurs composés, aucun d'eux n'étant un hydrocarbure à partir de composés organiques ne renfermant que des atomes d'oxygène en tant qu'hétéro-atomes à partir de composés carbonylés
• B01J 23/88 - Molybdène
• B01J 23/888 - Tungstène

Abrégé

xyzz type composite metal oxide catalyst, the target product cyclopentadiene is synthesized by means of hydrodeoxygenation and dehydrogenation reactions in series. The present invention has a simple process route and is environment-friendly, and the catalyst is convenient to prepare, thereby providing a new and effective way for synthesizing cyclopentadiene by means of cyclopentanone.

Classes IPC  ?

• C07C 1/207 - Préparation d'hydrocarbures à partir d'un ou plusieurs composés, aucun d'eux n'étant un hydrocarbure à partir de composés organiques ne renfermant que des atomes d'oxygène en tant qu'hétéro-atomes à partir de composés carbonylés
• C07C 13/15 - Hydrocarbures monocycliques ou leurs dérivés hydrocarbonés acycliques à cycle à cinq chaînons à cycle du cyclopentadiène
• B01J 23/88 - Molybdène
• B01J 23/888 - Tungstène

Abrégé

A preparation process of composite membrane for fuel cells uses an expanded polytetrafluoroethylene microporous base membrane as a skeleton. The base membrane is subjected to an impregnation treatment of mixed solutions having different concentrations from low to high. Specifically, the treatment tank I is provide with a mixed solution of a 0.1 wt. %-1 wt. % perfluorosulfonic acid resin solution, a water-retaining agent and a free radical quencher, the treatment tank II is provided with a mixed solution of a 2 wt. %-6 wt. % perfluorosulfonic acid resin solution, a water-retaining agent and a free radical quencher, and the treatment tank III is provided with a mixed solution of a 7 wt. %-20 wt. % perfluorosulfonic acid resin solution and a sulfonated polyetheretherketone solution. The resulting proton exchange composite membrane does not generate pore residues and avoids hydrogen permeation when in use.

Classes IPC  ?

• H01M 8/1088 - Modification chimique, p. ex. sulfonation
• H01M 8/1039 - Matériaux d’électrolyte polymère halogénés, p. ex. des fluorures de polyvinylidène sulfonés
• H01M 8/1067 - Matériaux d’électrolyte polymère caractérisés par leurs propriétés physiques, p. ex. la porosité, la conductivité ionique ou l’épaisseur

Abrégé

A roll-to-roll continuous coater for CCM preparation, and a coiled material connection method are provided. The coater has a coiled material connection mechanism that includes an upper rack (2) and a lower rack (3). A vacuum suction plate I (2-3) provided with a driving device for achieving displacement and a vacuum suction plate II (3-1) provided with a solid glue spraying device (3-3) are respectively disposed on the bottom of the upper rack (2) and the top of the lower rack (3). An optical fiber sensor I (2-4) and an optical fiber sensor II (3-2) are respectively disposed in the vacuum suction plate I (2-3) and the vacuum suction plate II (3-1). A tension detection device (4) is disposed between the lower rack (3) and a driving roller assembly (1).

Classes IPC  ?

• H01M 4/88 - Procédés de fabrication
• B05C 5/02 - Appareillages dans lesquels un liquide ou autre matériau fluide est projeté, versé ou répandu sur la surface de l'ouvrage à partir d'un dispositif de sortie en contact, ou presque en contact, avec l'ouvrage
• B65H 23/18 - Positionnement, tension, suppression des à-coups ou guidage des bandes longitudinal en commandant ou régulant le mécanisme d'avance de la bande, p. ex. le mécanisme agissant sur la bande courante

Abrégé

A method for preparing an organic solvent-activated nano magnesium powder, which method belongs to the technical fields of nano material preparation, hydrogen storage materials and hydrogen storage application. The method for preparing an organic solvent-activated nano magnesium powder comprises the following steps: reacting a mixture containing a magnesium source and an organic solvent to obtain an activated nano magnesium powder, wherein the mass ratio of the magnesium source to the organic solvent is 1 : 0.1 to 1 : 1. By means of the method, the magnesium powder is significantly reduced from millimeter scale to micron scale or even nanoscale, and the chemical adsorption of the organic solvent on the surface of the magnesium powder greatly improves the surface activity; the prepared nano magnesium powder can significantly absorb hydrogen at room temperature, and can be quickly hydrogenated into magnesium hydride with high economic value under mild conditions; and the method has a simple and feasible process and is suitable for large-scale amplified production.

Classes IPC  ?

• C22B 26/22 - Obtention du magnésium
• C01B 6/04 - Hydrures des métaux alcalins, des métaux alcalino-terreux, du béryllium ou du magnésiumLeurs complexes d'addition

Abrégé

A composite high-temperature proton exchange membrane for a fuel cell is prepared using materials include PBI and composite A@B and phosphoric acid. A is nanoparticles with a free radical quenching function and B is C3N4 having a nanosheet structure. The mass fraction of composite A@B is 0.05-2 wt. % and the mass ratio of A to B in A@B is 1:1-1:20. Composite A@B is firstly prepared, and A@B is then ultrasonically dispersed with a strong polar aprotic solvent to obtain a dispersion S1. PBI solution S2 is obtained from PBI and a strong polar aprotic solvent. S1 and S2 are uniformly mixed and stirred to obtain a casting solution S3, which is cast on plate glass with a groove. The membrane is then soaked in phosphoric acid after dying to obtain a composite membrane for a high-temperature proton fuel cell.

Classes IPC  ?

• H01M 8/1048 - Additifs conducteurs ioniques, p. ex. particules conductrices ioniques, hétéro polyacides, phosphates métalliques ou polybenzimidazoles comprenant de l’acide phosphorique
• H01M 8/103 - Matériaux d’électrolyte polymère caractérisés par la structure chimique de la chaîne principale du polymère conducteur ionique comprenant de l’azote, p. ex. des polybenzimidazoles sulfonés [S-PBI], des polybenzimidazoles comprenant de l’acide phosphorique, des polyamides sulfonés [S-PA] ou des polyphosphazènes sulfonés
• H01M 8/1067 - Matériaux d’électrolyte polymère caractérisés par leurs propriétés physiques, p. ex. la porosité, la conductivité ionique ou l’épaisseur
• H01M 8/1088 - Modification chimique, p. ex. sulfonation
• C08J 3/205 - Formation de mélanges de polymères avec des additifs, p. ex. coloration en présence d'une phase liquide
• C08J 5/22 - Bandes, membranes ou diaphragmes
• C08K 9/02 - Ingrédients traités par des substances inorganiques

Abrégé

A compact portable oxyhydrogen generator has a housing, an end cover fastened on the upper end of the housing for discharging gas, and a bottom cover fastened at the lower end of the housing. A battery module for supplying power, an electrolytic cell module for generating hydrogen/oxygen mixture, a water filtration cell for filtering moisture, and a multi-stage filter baffle for further filtering the gas are sequentially arranged in the housing from bottom to top. A flame retardant core is provided between the filter baffle at the top layer and a gas outlet provided in the end cover. The multi-stage filter baffle is provided according to requirements of a gas filtering index. Water is used as a reaction raw material and an inorganic salt can be used as an electrolyte, such that a normal-pressure hydrogen/oxygen mixture may be to directly generated, and can be produced when needed.

Classes IPC  ?

• C25B 1/044 - Hydrogène ou oxygène par électrolyse de l'eau produisant un mélange de gaz d'hydrogène et d'oxygène, p. ex. oxyhydrogène
• C25B 15/08 - Alimentation ou vidange des réactifs ou des électrolytesRégénération des électrolytes
• C25B 9/17 - Cellules comprenant des électrodes fixes de dimensions stablesAssemblages de leurs éléments de structure
• C25B 15/023 - Mesure, analyse ou test pendant la production électrolytique

Abrégé

12521252125212522P/NF is loaded with monatomic Ir, the water oxidation overpotential can be further reduced, and same has wide application prospects.

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 11/061 - Métal ou alliage
• C25B 11/031 - Électrodes poreuses

Abrégé

An integrated electrode frame and preparation method and use thereof is provided. The integrated electrode frame includes a positive electrode frame, a negative electrode frame, and a membrane. Each of the positive electrode frame and the negative electrode frame is a flat plate with a central through-hole. The membrane is placed between the positive electrode frame and the negative electrode frame, and the membrane is located at the through-hole and hermetically connected to a peripheral edge of the through-hole. A peripheral edge of the positive electrode frame is hermetically connected to a peripheral edge of the negative electrode frame. A material composition of a connecting part of the positive electrode frame and the negative electrode frame contains at least one material which is the same as that of the positive electrode frame or the negative electrode frame. The structures and materials of the electrode frames and the membrane are optimized.

Classes IPC  ?

• H01M 8/0273 - Moyens d’étanchéité ou de support autour des électrodes, des matrices ou des membranes avec des moyens d’étanchéité ou de support sous forme d’un cadre
• H01M 8/18 - Éléments à combustible à régénération, p. ex. batteries à flux REDOX ou éléments à combustible secondaires
• H01M 8/242 - Groupement d'éléments à combustible, p. ex. empilement d'éléments à combustible avec électrolytes solides ou supportés par une matrice comprenant des électrodes encadrées ou des joints intermédiaires en forme de cadre
• H01M 8/0284 - Résines organiquesPolymères organiques
• H01M 8/0286 - Procédés de formation des joints d’étanchéité

Abrégé

A burner includes a housing, a fan, a burning head and an ignition mechanism. An air inlet of the housing and an input end of the burning head form a pressure equalizing cavity. The ignition mechanism is arranged at an output end of the burning head. The burning head includes a main frame and at least one stable burning isolation strip, an interior of the main frame is divided into at least two ventilation areas by the stable burning isolation strip in a gas channel direction. A plurality of separation mechanisms is arranged in each ventilation area and divide the ventilation area into a plurality of through holes arranged in the gas channel direction, the through holes are used for allowing mixed gas to pass through and strengthening the mixing effect. The burning flame of a burning surface of the main frame can be divided into mutually independent flames by the stable burning isolation strip. The burner can be used in gas stoves, low-nitrogen combustion engines for a gas boiler, gas water heaters and gas heating water heaters.

Classes IPC  ?

• F23D 14/02 - Brûleurs à gaz avec prémélangeurs, c.-à-d. dans lesquels le combustible gazeux est mélangé à l'air de combustion en amont de la zone de combustion
• F23C 6/02 - Appareils à combustion caractérisés par la combinaison d'au moins deux chambres de combustion disposées parallèlement
• F23D 14/62 - Dispositifs mélangeursTubes mélangeurs
• F23D 14/26 - Brûleurs pour la combustion d'un gaz, p. ex. d'un gaz stocké sous pression à l'état liquide avec dispositifs pour retenir la flamme
• F24C 3/08 - Disposition ou montage des brûleurs

Abrégé

Disclosed in the present invention are an eggshell-type catalyst, and a preparation method therefor, and the use thereof in a propylene hydroformylation reaction. In the eggshell-type catalyst, phosphine ligand resin pellets with developed pore structures are used as a carrier, and one, two or more of metals Rh, Co, Ir, Ru and Pd are used as active components. The spatial distribution of the metal active components in the resin pellets is effectively regulated by finely regulating the pore structure of the resin carrier pellets and adding a method of competitive adsorption coordination, such that the prepared eggshell-type catalyst has the characteristics of relatively high activity in the propylene hydroformylation reaction and good n-butyraldehyde selectivity in the product aldehyde.

Classes IPC  ?

• B01J 31/06 - Catalyseurs contenant des hydrures, des complexes de coordination ou des composés organiques contenant des composés organiques ou des hydrures métalliques contenant des polymères

Abrégé

An adsorbent and a use thereof are provided. The adsorbent is a metal-organic framework (MOF) MIL-125; the MOF MIL-125 has an external specific surface area (SSA) of 160 m2/g to 220 m2/g; and the MOF MIL-125 includes a micropore with an area of 1,000 m2/g to 1,500 m2/g. The external SSA of the MOF MIL-125 is much higher than an external SSA of the traditional MIL-125, which has promising application prospects in the adsorptive separation of xylene isomers and exhibits high selectivity for p-xylene.

Classes IPC  ?

• B01J 20/22 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtrationAbsorbants ou adsorbants pour la chromatographieProcédés pour leur préparation, régénération ou réactivation contenant une substance organique
• 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
• 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
• B01D 15/18 - Adsorption sélective, p. ex. chromatographie caractérisée par des caractéristiques de structure ou de fonctionnement relatives aux différents types d'écoulement
• B01D 15/42 - Adsorption sélective, p. ex. chromatographie caractérisée par le mode de développement, p. ex. par déplacement ou par élution

Abrégé

A metal-organic framework (MOF) MIL-125 and a preparation method and a use thereof are provided. The MOF MIL-125 is a round cake-like crystal and has an external specific surface area (SSA) of 160 m2/g to 220 m2/g. The MOF MIL-125 provided in the present application has a large number of microporous structures, a large external SSA, and a high catalytic activity in oxidation.

Classes IPC  ?

• B01J 31/16 - Catalyseurs contenant des hydrures, des complexes de coordination ou des composés organiques contenant des complexes de coordination
• B01J 35/10 - Catalyseurs caractérisés par leur forme ou leurs propriétés physiques, en général solides caractérisés par leurs propriétés de surface ou leur porosité
• B01J 35/02 - Catalyseurs caractérisés par leur forme ou leurs propriétés physiques, en général solides
• B01J 37/04 - Mélange
• B01J 37/03 - PrécipitationCo-précipitation
• C07D 301/19 - Synthèse du cycle de l'oxirane par oxydation de composés non saturés, ou de mélanges de composés non saturés et de composés saturés par des hydroperoxydes organiques
• C07F 7/28 - Composés du titane

Abrégé

A preparation method of a porous oxide is provided, which includes: preparing the porous oxide with a polyester polyol as a raw material. The porous oxide prepared by the preparation method in the present application has characteristics such as uniform and adjustable pore sizes and controllable distribution of mesopores, micropores, and macropores.

Classes IPC  ?

• C01G 23/04 - OxydesHydroxydes
• C01F 7/30 - Préparation de l'oxyde ou de l'hydroxyde d'aluminium par décomposition thermique ou par hydrolyse ou oxydation de composés de l'aluminium

Abrégé

Disclosed in the present application is a method for preparing 1,2-dichloroethane. The method comprises reacting raw materials containing ethylene glycol diacetate and hydrogen chloride in the presence of a catalyst to obtain 1,2-dichloroethane. By means of the method, ethylene glycol diacetate can be efficiently converted into 1,2-dichloroethane, and the yield of 1,2-dichloroethane is very high.

Classes IPC  ?

• C07C 17/00 - Préparation d'hydrocarbures halogénés
• C07C 19/045 - Dichloro-éthanes

Abrégé

2322322. The carrier is modified by an alkali metal or an alkaline-earth metal before use, wherein the alkali metal is one or a combination of Na and K. The reduced and activated catalyst is subjected to a high-temperature treatment in an ammonia atmosphere. The catalyst prepared by using the method is used for the hydroamination of monoethanolamine and ethylenediamine, has the advantages of high yield, good stability, high activity, etc. of polyethylene polyamine, and has broad industrial prospects.

Classes IPC  ?

• 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 209/68 - Préparation de composés contenant des groupes amino liés à un squelette carboné à partir d'amines, par des réactions n'impliquant pas de groupes amino, p. ex. réduction d'amines non saturées, aromatisation ou substitution du squelette carboné
• C07C 211/14 - Amines contenant des groupes amino liés à au moins deux groupes aminoalkyle, p. ex. diéthylènetriamines
• C07D 471/08 - Systèmes pontés
• C07D 295/13 - Composés hétérocycliques contenant des cycles polyméthylène imine d'au moins cinq chaînons, des cycles aza-3 bicyclo [3.2.2] nonane, piperazine, morpholine ou thiomorpholine, ne comportant que des atomes d'hydrogène liés directement aux atomes de carbone du cycle avec des radicaux hydrocarbonés substitués liés aux atomes d'azote du cycle substitués par des atomes d'azote liés par des liaisons simples ou doubles avec les atomes d'azote du cycle et les atomes d'azote substituants liés à la même chaîne carbonée, qui n'est pas interrompue par des cycles carbocycliques à une chaîne acyclique saturée
• B01J 23/04 - Métaux alcalins
• B01J 32/00 - Supports de catalyseurs, en général
• B01J 37/02 - Imprégnation, revêtement ou précipitation
• B01J 37/03 - PrécipitationCo-précipitation
• B01J 35/10 - Catalyseurs caractérisés par leur forme ou leurs propriétés physiques, en général solides caractérisés par leurs propriétés de surface ou leur porosité
• B01J 37/08 - Traitement thermique
• B01J 37/18 - Réduction avec des gaz contenant de l'hydrogène libre
• 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 23/889 - Manganèse, technétium ou rhénium
• 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

Abrégé

The present application provides a catalytic reforming catalyst preparation method and a catalytic reforming catalyst. The catalytic reforming catalyst preparation method of the present application comprises the following steps: 1) adding a platinum group metal precursor to a system comprising a first silicon source and an aluminum source for mixing, and then adding a second silicon source, so as to obtain a silicon-aluminum precursor coated with platinum group metals, the first silicon source comprising a silane compound containing aminopropyl; and 2) performing steam assisted crystallization on the silicon-aluminum precursor coated with the platinum group metal, so as to obtain the catalytic reforming catalyst. The catalytic reforming catalyst prepared by the preparation method of the present application has excellent stability and smaller molecular sieve grain size, and has excellent aromatics selectivity, aromatics yield, and carbon deposition resistance when used in catalytic reforming reaction.

Classes IPC  ?

• B01J 29/44 - Métaux nobles

Abrégé

An ultrasonic micromixer having millisecond mixing performance. The ultrasonic micromixer comprises a micromixer (1), an ultrasonic transducer (2), and an ultrasonic generator (3); the wavelength of a sound wave in air corresponding to the working frequency of the ultrasonic transducer (2) is 4-68 times the hydraulic diameter of a microchannel in the micromixer (1). By means of matching between the hydraulic diameter of the microchannel and the wavelength of the sound wave, vigorous and highly controllable ultrasonic cavitation is generated in the microchannel, the density of cavitation bubbles can reach one cavitation bubble per cubic millimeter, a large number of cavitation bubbles generated in the microchannel rapidly stir a fluid like a stirrer, so that millisecond-level mixing in the microchannel is implemented, and the shortest mixing time can reach 0.2 ms.

Classes IPC  ?

• B01F 31/80 - Mélange au moyen de vibrations à haute fréquence supérieures à 1 kHz, p. ex. de vibrations ultrasoniques
• B01F 31/87 - Mélange au moyen de vibrations à haute fréquence supérieures à 1 kHz, p. ex. de vibrations ultrasoniques transmettant l'énergie vibratoire au moyen d'un fluide, p. ex. au moyen d'ondes de choc aériennes
• B01F 33/30 - Micromixeurs
• B01J 19/10 - Procédés utilisant l'application directe de l'énergie ondulatoire ou électrique, ou un rayonnement particulaireAppareils à cet usage utilisant des vibrations de fréquences audibles ou des ultrasons

Abrégé

A burner contains a burner component. The burner component includes a main frame and at least one stable burning isolation strip. An interior of the main frame is divided into at least two ventilation areas by the stable burning isolation strip in a gas channel direction. Several separation mechanisms are arranged in each ventilation area and divide the ventilation area into several through holes distributed in the gas channel direction. The through holes are used for a mixed gas of fuel gas and air to pass through and enhancing a mixing effect of the fuel gas and the air. The flame of a burning surface of the main frame can be divided into independent flames by the stable burning isolation strip so that the burning is more stable and fewer pollutants are emitted.

Classes IPC  ?

• F23D 14/04 - Brûleurs à gaz avec prémélangeurs, c.-à-d. dans lesquels le combustible gazeux est mélangé à l'air de combustion en amont de la zone de combustion du type à induction, p. ex. becs Bunsen
• F23D 14/62 - Dispositifs mélangeursTubes mélangeurs

Abrégé

22222-dependent natural products such as phenolic acid.

Classes IPC  ?

• C12N 1/16 - LevuresLeurs milieux de culture
• C12N 1/18 - Levure de boulangerieLevure de bière
• C12N 1/19 - LevuresLeurs milieux de culture modifiés par l'introduction de matériel génétique étranger
• C12N 15/81 - Vecteurs ou systèmes d'expression spécialement adaptés aux hôtes eucaryotes pour champignons pour levures
• C12N 15/52 - Gènes codant pour des enzymes ou des proenzymes
• C12P 7/42 - Acides hydroxycarboxyliques

Abrégé

Provided in the present application are a method for improving the SAM cofactor supply of Saccharomyces cerevisiae, an engineered yeast and the use thereof. The method comprises: introducing an MET6 gene, a cMTFHR gene, a LiMETK1 gene, an SAH1 gene and an ADO1 gene into Saccharomyces cerevisiae. The method can solve the problem of the insufficient supply of endogenous auxiliary factors in the synthesis process of methylation products such as ferulic acid, thereby increasing the synthesis efficiency thereof.

Classes IPC  ?

• C12N 15/67 - Méthodes générales pour favoriser l'expression
• C12N 15/81 - Vecteurs ou systèmes d'expression spécialement adaptés aux hôtes eucaryotes pour champignons pour levures
• C12N 1/19 - LevuresLeurs milieux de culture modifiés par l'introduction de matériel génétique étranger
• C12R 1/865 - Saccharomyces cerevisiae

Abrégé

22-COOH, where R is a methoxy or hydroxyl; and the methyl ester compound comprises at least one of methyl methoxyacetate and methyl glycolate. A method for preparing the methyl glycolate comprises the steps of: a) subjecting methylal and carbon monoxide to a carbonylation reaction to obtain methyl methoxyacetate; b) subjecting the methyl methoxyacetate and water to a hydrolysis reaction to obtain the methyl glycolate; and c) subjecting glycolic acid and methoxyacetic acid, as well as methanol and dimethyl ether, to an esterification reaction to obtain the methyl glycolate. The method can greatly simplify the separation process, can save the energy consumption, and provides a new synthesis route for synthesizing a methyl ester compound, especially methyl glycolate.

Classes IPC  ?

• C07C 67/08 - Préparation d'esters d'acides carboxyliques par réaction d'acides carboxyliques ou d'anhydrides symétriques avec le groupe hydroxyle ou O-métal de composés organiques
• C07C 67/24 - Préparation d'esters d'acides carboxyliques par réaction d'acides carboxyliques ou de leurs dérivés avec une liaison éther carbone-oxygène, p. ex. acétal, tétrahydrofuranne
• C07C 67/31 - Préparation d'esters d'acides carboxyliques par modification de la partie acide de l'ester sans introduction d'un groupe ester par introduction de groupes fonctionnels avec de l'oxygène lié uniquement par liaison simple
• C07C 69/675 - Esters d'acides carboxyliques dont le groupe carboxyle estérifié est lié à un atome de carbone acyclique et dont l'un des groupes OH, O-métal, —CHO, céto, éther, acyloxy, des groupes , des groupes ou des groupes se trouve dans la partie acide d'acides saturés d'acides hydroxycarboxyliques saturés
• C07C 67/37 - Préparation d'esters d'acides carboxyliques par réaction avec du monoxyde de carbone ou des formiates obtenus par réaction d'éthers avec l'oxyde de carbone
• C07C 69/708 - Éthers
• B01J 29/70 - Zéolites aluminosilicates cristallinesLeurs composés isomorphes de types caractérisés par leur structure spécifique non prévus dans les groupes
• B01J 29/08 - Zéolites aluminosilicates cristallinesLeurs composés isomorphes du type faujasite, p. ex. du type X ou Y
• B01J 29/40 - Zéolites aluminosilicates cristallinesLeurs composés isomorphes du type pentasil, p. ex. types ZSM-5, ZSM-8 ou ZSM-11
• B01J 29/65 - Zéolites aluminosilicates cristallinesLeurs composés isomorphes du type ferriérite, p. ex. types ZSM-21, ZSM-35 ou ZSM-38

Abrégé

Provided are a construction method of engineering bacteria, engineering bacteria obtained by means of construction and use of same in the preparation of sclareol. The construction method comprises the following steps: a DNA fragment I which comprises a promoter, a fusion gene and a terminator in sequence from upstream to bottom is introduced into a saccharomyces cerevisiae host strain. The fusion gene comprises in sequence from upstream to bottom: a TPS gene, a coding gene for a linker peptide I and an LPPS gene. The construction method optimizes the sclareol synthetase of the host strain, thereby facilitating an increase in sclareol yield.

Classes IPC  ?

• C12N 15/52 - Gènes codant pour des enzymes ou des proenzymes
• C12N 15/62 - Séquences d'ADN codant pour des protéines de fusion
• C12P 7/02 - Préparation de composés organiques contenant de l'oxygène contenant un groupe hydroxyle
• C12N 1/19 - LevuresLeurs milieux de culture modifiés par l'introduction de matériel génétique étranger
• C12R 1/865 - Saccharomyces cerevisiae

Abrégé

The present invention relates to the technical field of biology. Disclosed are a β-1,3-glucanase and a preparation method therefor and an application thereof. According to the present invention, by means of genetic engineering techniques, a gene of endo-β-1,3-glucanase CcGluE-CDMΔH1 is obtained from cellulosimicrobium cellulans, and the gene of the endo-β-1,3-glucanase CcGluE-CDMΔH1 is cloned to an Escherichia coli expression vector to obtain an Escherichia coli recombinant strain capable of heterologously expressing the enzyme. The endo-β-1,3-glucanase prepared by heterologous expression of the strain can produce gluco-oligosaccharides having different polydispersities at different pHs, and thus can be widely used in the fields of agriculture, food, feed addition, medicine, gluco-oligosaccharide preparation and the like.

Classes IPC  ?

• C12N 15/56 - Hydrolases (3) agissant sur les composés glycosyliques (3.2), p. ex. amylase, galactosidase, lysozyme
• C12N 9/24 - Hydrolases (3.) agissant sur les composés glycosyliques (3.2)
• C12P 19/14 - Préparation de composés contenant des radicaux saccharide préparés par action d'une carbohydrase, p. ex. par action de l'alpha-amylase
• C12P 19/02 - Monosaccharides
• A01N 47/44 - GuanidineSes dérivés
• A01P 1/00 - DésinfectantsComposés antimicrobiens ou leurs mélanges
• A01P 3/00 - Fongicides

Abrégé

Disclosed is a method for preparing 1,2-dichloroethane. The method comprises the following steps: reacting raw materials containing ethylene glycol monomethyl ether, hydrogen chloride and a catalyst, obtaining the 1,2-dichloroethane. According to the method, ethylene glycol monomethyl ether and hydrogen chloride are used as the raw materials for reaction, and the ethylene glycol monomethyl ether can be efficiently converted, obtaining a relatively high 1,2-dichloroethane yield.

Classes IPC  ?

• C07C 17/16 - Préparation d'hydrocarbures halogénés par remplacement par des halogènes de groupes hydroxyle
• C07C 17/093 - Préparation d'hydrocarbures halogénés par remplacement par des halogènes
• C07C 19/045 - Dichloro-éthanes

Abrégé

The present application discloses an aqueous iodine-based battery based on multi-electron transfer, the main structure of which comprises a positive electrode, a negative electrode, a current collector, an electrolyte solution, a separator, etc. At both sides of the positive electrode and the negative electrode, a porous carbon felt is used as an electrode material, and a polymer film is used as a film material. Positive and negative electrolyte solutions are both stored in the porous carbon felt electrodes. Both the positive and negative electrolyte solutions are an acidic mixed solution containing I-and Cd2+; during charging, the I-322 to achieve an electrochemical reaction of six-electron transfer, and the negative electrode involves the deposition of the Cd2+as a Cd metal; and the process is reversed during discharging. The energy density of the battery calculated on the basis of the volume of the positive electrolyte solution can reach approximately 1100 Wh/L. In order to improve the dynamics and reversibility during the multi-electron transfer process, other additives need to be added to the solution so as to improve the electrochemical reversibility of the whole reaction. Therefore, the battery can achieve an energy efficiency of more than 77% at a current density of 80 mA/cm2, and can stably operate for more than 500 cycles.

Classes IPC  ?

• H01M 8/18 - Éléments à combustible à régénération, p. ex. batteries à flux REDOX ou éléments à combustible secondaires

Abrégé

The present invention discloses an amine-bromine two-electron electrolyte of a flow battery and the use thereof, and a flow battery, which belong to the field of flow batteries. In the electrolyte, an amino compound having an electron-withdrawing group at the ortho-position of an amino is used to react with bromine charged to a positive valence so as to form an amine-bromine compound, such that positive-valence bromine is stabilized, and a reversible two-electron transfer reaction from a bromine ion to the amino compound is achieved. Amino compounds with different substituents have different solubilities and generate different voltages, and thus have extensive adjustability and applicability, and can be used in acidic, neutral and weakly alkaline flow battery systems. A flow battery assembled from the electrolyte which is prepared by means the reaction has the advantages of a low cost and a high energy density, and can obtain a relatively long cycle life and a relatively high battery efficiency.

Classes IPC  ?

• H01M 8/18 - Éléments à combustible à régénération, p. ex. batteries à flux REDOX ou éléments à combustible secondaires

Abrégé

A portable hydrogen-oxygen generator includes a housing having a detachable upper cover and a bottom cover. An electrolytic cell module is arranged in the housing. The electrolytic cell module has a hydrogen generation chamber and an oxygen generation chamber. A cathode electrode plate and an anode electrode plate are respectively arranged in the hydrogen generation chamber and the oxygen generation chamber, and the bottoms of the two generation chambers are communicated for electrolyte circulation. A hydrogen outlet part and an oxygen outlet part detachably arranged on the upper cover and respectively corresponding to the hydrogen generation chamber and the oxygen generation chamber. A filtering film for removing water is arranged between the hydrogen/oxygen outlet part and the electrolytic cell module. A power supply module is arranged on the bottom cover of the housing to supply electric energy to the cathode electrode plate and the anode electrode plate.

Classes IPC  ?

• C25B 9/01 - Configuration ou forme des cellules électrolytiques
• H01M 50/247 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports spécialement adaptés aux dispositifs portatifs, p. ex. aux téléphones portables, aux ordinateurs, aux outils à main ou aux stimulateurs cardiaques
• H01M 50/284 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports comprenant l’insertion de cartes de circuits, p. ex. de cartes de circuits imprimés
• H01M 50/298 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports caractérisés par le câblage des blocs de batterie
• C25B 15/08 - Alimentation ou vidange des réactifs ou des électrolytesRégénération des électrolytes
• C25B 15/025 - Paramètres de l’électrolyte
• C25B 9/65 - Dispositifs pour l'alimentation en courantConnexions d'électrodesConnexions électriques intercellulaires
• C25B 9/67 - Moyens de chauffage ou de refroidissement
• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau

Abrégé

A gas-air mixing structure and a burner, comprising an external supporting structure (2) arranged in a housing (1) and a gas array pipe connected to the external supporting structure (2). An air inlet is connected to one end of the housing (1). A gas mixing channel is provided between the gas array pipe and a mixed gas outlet. The gas array pipe consists of multiple gas pipes (3) arranged in an array, the gas pipes (3) are provided with gas inlets and gas outlets (4), and the gas outlets (4) are arranged on the leeward surfaces of the gas pipes (3). A gas inlet pipe is arranged on the air channel and gas outlet holes (4) are spaced apart on the leeward surfaces of the gas pipes (3) to uniformly mix the gas ejected from the gas outlet holes (4) by utilizing a Coanda effect of air upon a circular pipe.

Classes IPC  ?

• F23D 14/02 - Brûleurs à gaz avec prémélangeurs, c.-à-d. dans lesquels le combustible gazeux est mélangé à l'air de combustion en amont de la zone de combustion

Abrégé

A gas-air mixing structure and a burner, comprising an external supporting structure (2) arranged in a housing (1) and a gas array pipe connected to the external supporting structure (2). An air inlet is connected to one end of the housing (1). A gas mixing channel is provided between the gas array pipe and a mixed gas outlet. The gas array pipe consists of multiple gas pipes (3) arranged in an array, the gas pipes (3) are provided with gas inlets and gas outlets (4), and the gas outlets (4) are arranged on the leeward surfaces of the gas pipes (3). A gas inlet pipe is arranged on the air channel and gas outlet holes (4) are spaced apart on the leeward surfaces of the gas pipes (3) to uniformly mix the gas ejected from the gas outlet holes (4) by utilizing a Coanda effect of air upon a circular pipe.

Classes IPC  ?

• F23D 14/02 - Brûleurs à gaz avec prémélangeurs, c.-à-d. dans lesquels le combustible gazeux est mélangé à l'air de combustion en amont de la zone de combustion

Abrégé

Disclosed in the present application is a method for producing aromatic hydrocarbon by coupling alkane and carbon dioxide. A mixture containing alkane and carbon dioxide is in contact with a solid acid catalyst in a reactor to react to obtain an aromatic hydrocarbon compound. The alkane is selected from at least one of C2-C6 alkanes. The solid acid catalyst comprises a zeolite molecular sieve and/or a modified zeolite molecular sieve. The modified zeolite molecular sieve is a silane-modified zeolite molecular sieve. The carbon dioxide is widely derived from factory fumes, light alkane is widely derived from byproducts of petrochemical plants, the effect of turning waste into wealth is achieved, and meanwhile the pressure of carbon dioxide emission is relieved. The H/C ratio of the C2-C6 alkane products is regulated and controlled by adjusting the partial pressure of carbon dioxide, such that the purpose of high-selectivity generation of the aromatic hydrocarbon is achieved, and the high BTX selectivity and PX selectivity are obtained by modifying the outer surface of the molecular sieve with silane.

Classes IPC  ?

• C07C 2/86 - Préparation d'hydrocarbures à partir d'hydrocarbures contenant un plus petit nombre d'atomes de carbone par condensation d'un hydrocarbure et d'un non-hydrocarbure
• C07C 15/04 - Benzène
• C07C 15/06 - Toluène
• C07C 15/08 - Xylènes
• C07C 15/02 - Hydrocarbures monocycliques

Abrégé

A hydrogen-oxygen mixed gas preparation device capable of adjusting hydrogen content and a method therefor. The hydrogen-oxygen mixed gas preparation device comprises a shell for accommodating an oxygen production device, a hydrogen production device, a control module (14), and a power supply module (19), wherein the power supply module (19) is configured to supply power to each device; the oxygen production device is configured to separate oxygen from air and store the oxygen for later use; the hydrogen production device is configured to generate hydrogen or hydrogen-oxygen mixed gas for later use by means of a water electrolysis principle; the control module (14) is configured to control and adjust the flow of the oxygen, measure the concentration of the oxygen, and adjust the flow of the hydrogen-oxygen mixed gas and the hydrogen content to a preset range; and the oxygen generated by the oxygen production device and the hydrogen generated by the hydrogen production device or the hydrogen-oxygen mixed gas are or is converged to a gas outlet (17) of the hydrogen-oxygen mixed gas preparation device through a pipeline and then discharged after humidification or discharged directly. Further disclosed is a method for using the device. The advantages such as long service life, adjustable hydrogen content, adjustable flow of the hydrogen-oxygen mixed gas are achieved.

Classes IPC  ?

• C01B 13/02 - Préparation de l'oxygène
• C25B 9/00 - Cellules ou assemblages de cellulesÉléments de structure des cellulesAssemblages d'éléments de structure, p. ex. assemblages d'électrode-diaphragmeCaractéristiques des cellules relatives aux procédés
• C25B 1/044 - Hydrogène ou oxygène par électrolyse de l'eau produisant un mélange de gaz d'hydrogène et d'oxygène, p. ex. oxyhydrogène
• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• B01D 53/047 - Adsorption à pression alternée

Abrégé

The present application relates to the technical field of flow batteries, and discloses an alkaline negative electrode electrolyte and an alkaline zinc-iron flow battery assembled by same. An alkaline negative electrode electrolyte, wherein the negative electrode electrolyte comprising zinc ions, a complexing agent, and alkali. The complexing agent is selected from at least one of ethylenediamine tetraacetic acid, ethylene glycol diethyl ether diamine tetraacetic acid, cyclohexane tetraacetic acid, and ethylenediamine tetrapropionic acid; a molar ratio of the zinc ions to the complexing agent is 1:1; and a molar ratio of the complexing agent to the alkali is 1:(3-4). The zinc ions in the negative electrode electrolyte are in a complex state form, the negative electrode electrolyte is used as a negative electrode electrolyte, and the alkaline zinc-iron flow battery is obtained by means of assembly, so that the problem of electrolyte migration in the alkaline zinc-iron flow battery is solved, and the battery cycle stability is improved, moreover, the low-temperature performance of the battery is improved, and a working temperature range of the alkaline zinc-iron flow battery is widened.

Classes IPC  ?

• H01M 8/04186 - Dispositions pour la commande des paramètres des réactifs, p. ex. de la pression ou de la concentration des réactifs chargés en liquide ou en électrolyte
• H01M 8/18 - Éléments à combustible à régénération, p. ex. batteries à flux REDOX ou éléments à combustible secondaires

Abrégé

An efficient oxyhydrogen generation device for medical care. The efficient oxyhydrogen generation device mainly comprises a shell (20), an upper cover (1) and a bottom cover (33) which form a main body frame, wherein the shell (20) is composed of a front shell body and a rear shell body, the bottom cover (33) is fastened at the bottom of the shell body, and a formed space is used for accommodating an electrolytic tank (27), a water supply tank (23), a water supply tank upper cover (18) and a secondary water tank (26); the upper cover (1) is fastened on the upper part of the shell body and is provided with an atomization gas circulation part, a supply part used for filling the water supply tank with water, and a control panel (4) used for controlling an electrolytic water hydrogen and oxygen generator to operate; and oxyhydrogen generated by electrolysis of the electrolytic tank (27) sequentially enters the water supply tank (23) and the secondary water tank (26) by means of a gas guide plate (13) and is cleaned, and the cleaned gas is discharged from a gas circulation part.

Classes IPC  ?

• C25B 1/044 - Hydrogène ou oxygène par électrolyse de l'eau produisant un mélange de gaz d'hydrogène et d'oxygène, p. ex. oxyhydrogène
• C01B 3/04 - Production d'hydrogène ou de mélanges gazeux contenant de l'hydrogène par décomposition de composés inorganiques, p. ex. de l'ammoniac

Abrégé

A multi-disulfide-bond long-chain peptide with neuroprotective activity can reduce cellular calcium influx by inhibiting glutamate receptors to protect cortical neurons from excitotoxicity induced by glutamate. It can be an effective neuroprotective agent.

Classes IPC  ?

• C07K 14/415 - Peptides ayant plus de 20 amino-acidesGastrinesSomatostatinesMélanotropinesLeurs dérivés provenant de végétaux
• A61K 38/00 - Préparations médicinales contenant des peptides

Abrégé

A regeneration device, a device for preparing low-carbon olefins, and a use thereof are provided. The regeneration device includes a first regenerator and a second regenerator; a first activation zone of the first regenerator is connected to the second regenerator through a pipeline, such that a catalyst in the first activation zone is able to be delivered to the second regenerator; and the second regenerator is connected to a gas-solid separation zone of the first regenerator through a pipeline, such that a catalyst in the second regenerator is able to be delivered to the gas-solid separation zone. The regeneration device can adjust the coke content, coke content distribution, and coke species in a dimethyl ether/methanol to olefins (DMTO) catalyst to control an operation window of the DMTO catalyst, which improves the selectivity for low-carbon olefins and the atomic economy of a methanol-to-olefins (MTO) technology.

Classes IPC  ?

• B01J 29/90 - Régénération ou réactivation
• B01J 29/85 - Silico-aluminophosphates [composés SAPO]
• B01J 38/06 - Traitement avec un gaz ou une vapeurTraitement avec des liquides vaporisables au contact du catalyseur épuisé avec de la vapeur d'eau
• B01J 38/14 - Traitement avec un gaz contenant de l'oxygène libre en réglant la teneur en oxygène dans le gaz d'oxydation
• B01J 38/16 - Traitement avec un gaz contenant de l'oxygène libre le gaz d'oxydation étant essentiellement de la vapeur d'eau et de l'oxygène
• C07C 1/20 - Préparation d'hydrocarbures à partir d'un ou plusieurs composés, aucun d'eux n'étant un hydrocarbure à partir de composés organiques ne renfermant que des atomes d'oxygène en tant qu'hétéro-atomes
• C07C 11/04 - Éthylène
• C07C 11/06 - Propène
• B01J 8/28 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés les particules étant fluidisées selon la technique du "lit fluidisé" comportant au moins deux lits fluidisés, p. ex. installations de réaction et de régénération superposés
• B01J 8/00 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés
• B01J 8/34 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés les particules étant fluidisées selon la technique du "lit fluidisé" le lit fluidisé comportant un matériau de remplissage fixe, p. ex. matériaux fragmentés, anneaux métalliques, chicanes
• B01J 8/18 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés les particules étant fluidisées
• B01J 38/18 - Traitement avec un gaz contenant de l'oxygène libre suivi d'un traitement par un gaz réactif

Abrégé

The present invention relates to the technical field of catalysts, and relates to a magnesium oxide-loaded palladium monatomic catalyst, a preparation method therefor, and an application thereof in Suzuki coupling reaction. Metal active component palladium is dispersed on a carrier magnesium oxide in a monatomic form by using an impregnation method, the palladium monatomic catalyst of which the palladium monatomic loading amount is 0.01-5% of the total mass of the catalyst is obtained by roasting, and the preparation method is simple, convenient, safe, green, environment-friendly, and suitable for large-scale production. The obtained palladium monatomic catalyst has excellent catalytic performance on various Suzuki coupling reaction raw materials, has the remarkable advantages such as a high precious metal atom utilization rate, good stability, and low costs, and has good application prospects.

Classes IPC  ?

• B01J 23/58 - Métaux du groupe du platine avec des métaux alcalins ou alcalino-terreux ou du béryllium

Abrégé

2222 making contact with the modified molecular sieve catalyst in a reactor for reaction to form benzene, toluene, and p-xylene. The method overcomes the defects of limited hydrogen resources and high costs in the existing technology.

Classes IPC  ?

• C07C 15/04 - Benzène
• C07C 15/06 - Toluène
• C07C 15/08 - Xylènes
• B01J 29/06 - Zéolites aluminosilicates cristallinesLeurs composés isomorphes
• B01J 29/40 - Zéolites aluminosilicates cristallinesLeurs composés isomorphes du type pentasil, p. ex. types ZSM-5, ZSM-8 ou ZSM-11
• B01J 37/08 - Traitement thermique
• B01J 37/10 - Traitement thermique en présence d'eau, p. ex. de vapeur d'eau

Abrégé

222.

Classes IPC  ?

• C07C 2/86 - Préparation d'hydrocarbures à partir d'hydrocarbures contenant un plus petit nombre d'atomes de carbone par condensation d'un hydrocarbure et d'un non-hydrocarbure
• C10G 3/00 - Production de mélanges liquides d'hydrocarbures à partir de matières organiques contenant de l'oxygène, p. ex. huiles, acides gras
• C10G 35/095 - Réformage catalytique caractérisé par le catalyseur utilisé contenant des alumino-silicates cristallins, p. ex. des tamis moléculaires
• C07C 15/08 - Xylènes

Abrégé

A coke control reactor, a device for preparing low-carbon olefins from an oxygen-containing compound, and a use thereof are provided. The coke control reactor includes a riser reactor and a bed reactor; the bed reactor includes a bed reactor shell, and the bed reactor shell encloses a reaction zone I, a transition zone, and a gas-solid separation zone I from bottom to top; a bed reactor distributor is arranged in the reaction zone I; a coke controlled catalyst delivery pipe is arranged outside the reaction zone I; an upper section of the riser reactor penetrates through a bottom of the bed reactor and is axially inserted in the bed reactor; and an outlet end of the riser reactor is located in the transition zone. The coke control reactor can control the conversion and generation of coke species in a catalyst.

Classes IPC  ?

• C07C 1/20 - Préparation d'hydrocarbures à partir d'un ou plusieurs composés, aucun d'eux n'étant un hydrocarbure à partir de composés organiques ne renfermant que des atomes d'oxygène en tant qu'hétéro-atomes
• B01J 8/18 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés les particules étant fluidisées
• B01J 8/22 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés les particules étant fluidisées l'agent fluidisant étant un liquide du gaz étant introduit dans le liquide
• B01J 8/26 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés les particules étant fluidisées selon la technique du "lit fluidisé" comportant au moins deux lits fluidisés, p. ex. installations de réaction et de régénération

Abrégé

A carbon dioxide hydrogenation-based methanol preparation catalyst, and a preparation method therefor and the use thereof. A defect-rich thin-layer two-dimensional metal sulfide is synthesized by using a high-temperature and high-pressure solvothermal coupling reduction method for carbon dioxide hydrogenation-based methanol preparation, and rich defects enable the metal sulfide to have high carbon dioxide hydrogenation-based methanol preparation activity. The carbon dioxide hydrogenation-based methanol preparation catalyst can obtain relatively high activity and selectivity, and good stability, and has good industrial application prospects.

Classes IPC  ?

• B01J 27/04 - Sulfures
• B01J 27/047 - Sulfures avec du chrome, du molybdène, du tungstène ou du polonium
• B01J 27/051 - Molybdène
• B01J 27/19 - Molybdène
• 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
• B01J 37/16 - Réduction
• B01J 37/18 - Réduction avec des gaz contenant de l'hydrogène libre
• C07C 29/153 - Préparation de composés comportant des groupes hydroxyle ou O-métal liés à un atome de carbone ne faisant pas partie d'un cycle aromatique à six chaînons par réduction exclusivement des oxydes de carbone avec de l'hydrogène ou des gaz contenant de l'hydrogène caractérisée par le catalyseur utilisé
• C07C 31/04 - Méthanol

Abrégé

A fluidized bed reactor, a device, and a method for producing low-carbon olefins from oxygen-containing compound are provided. The fluidized bed reactor includes a reactor shell, a reaction zone, a coke control zone and a delivery pipe, where there are n baffles arranged in the coke control zone, and the n baffles divide the coke control zone into n sub-coke control zones which include a first sub-coke control zone, a second sub-coke control zone, and an nth sub-coke control zone; at least one catalyst circulation hole is provided on each of the n-1 baffles, so that the catalyst flows in an annular shape in the coke control zone, where n is an integer. The device and method can be adapted to a new generation of DMTO catalyst, and the unit consumption of production ranges from 2.50 to 2.58 tons of methanol/ton of low-carbon olefins.

Classes IPC  ?

• C10G 3/00 - Production de mélanges liquides d'hydrocarbures à partir de matières organiques contenant de l'oxygène, p. ex. huiles, acides gras
• B01J 8/18 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés les particules étant fluidisées
• C07C 1/24 - Préparation d'hydrocarbures à partir d'un ou plusieurs composés, aucun d'eux n'étant un hydrocarbure à partir de composés organiques ne renfermant que des atomes d'oxygène en tant qu'hétéro-atomes par élimination d'eau
• B01J 29/85 - Silico-aluminophosphates [composés SAPO]
• B01J 31/06 - Catalyseurs contenant des hydrures, des complexes de coordination ou des composés organiques contenant des composés organiques ou des hydrures métalliques contenant des polymères
• B01D 45/16 - Séparation de particules dispersées dans des gaz ou des vapeurs par gravité, inertie ou force centrifuge en utilisant la force centrifuge produite par le mouvement hélicoïdal du courant gazeux