Method for selective hydrogenation of unsaturated polyhydrocarbon

The invention discloses a method for selective hydrogenation of unsaturated polyhydrocarbon. The method is characterized in that a high-molecular compound carrier catalyst as an inner part is fixed on a rotor of a super-gravity rotary bed reactor so as to form a rotating catalyst bed layer; a hydrocarbon material and hydrogen pass through the rotating catalyst bed layer in a reverse flow manner or a parallel flow manner so that a selective hydrogenation reaction of the unsaturated polyhydrocarbon can be implemented in a super-gravity field. The method is good in heat and mass transfer effect, high in catalyst selectivity and high in yield.

A SUPPORTED CATALYST, ITS ACTIVATED FORM, AND THEIR PREPARATION AND USE

A supported catalyst and preparation method thereof, the catalyst comprising an organic polymer material carrier, and Raney alloy particles supported on the organic polymer material carrier; basically all of the Raney alloy grains are partially embedded in the organic polymer material carrier. The catalyst can be used in hydrogenation, dehydrogenation, amination, dehalogenation or desulfurization reactions.

Supported catalyst and active form thereof, and preparation method and use

A supported catalyst and preparation method thereof, the catalyst comprising an organic polymer material carrier, and Raney alloy particles supported on the organic polymer material carrier; basically all of the Raney alloy grains are partially embedded in the organic polymer material carrier. The catalyst can be used in hydrogenation, dehydrogenation, amination, dehalogenation or desulfurization reactions.

Palladium-silver doped supported Raney copper catalyst, preparation method thereof and method for preparing 1-butene through selective hydrogenation of C4 raffinate

The invention relates to the technical field of C4 raffinate hydrogenation, in particular to a palladium-silver doped supported Raney copper catalyst, a preparation method thereof and a method for preparing 1-butene through selective hydrogenation of C4 raffinate. The preparation method of the catalyst comprises the following steps: (1) smelting copper powder, aluminum powder, silver powder and palladium powder together to prepare an alloy, and crushing to obtain Raney alloy particles; (2) preparing a catalyst intermediate from the Raney alloy particles and an organic polymer material; and (3) carrying out aluminum extraction treatment on the catalyst intermediate by using a caustic alkali aqueous solution to obtain the palladium-silver doped supported Raney copper catalyst. The catalyst provided by the invention has relatively high stability in a reaction for preparing 1-butene through selective hydrogenation of C4 raffinate, and still keeps relatively good activity after the reaction ...

A SUPPORTED CATALYST, ITS ACTIVATED FORM, AND THEIR PREPARATION AND USE

A supported catalyst and preparation method thereof, the catalyst comprising an organic polymer material carrier and Raney alloy particles supported on the organic polymer material carrier, wherein substantially all of the Raney alloy particles are partially embedded in the organic polymer material carrier. The catalyst can be used in hydrogenation, dehydrogenation, amination, dehalogenation or desulfuration reactions.

Supported catalyst and active form thereof, and preparation method and use thereof

A supported catalyst and preparation method thereof, the catalyst comprising an organic polymer material carrier, and Raney alloy particles supported on the organic polymer material carrier; basically all of the Raney alloy grains are partially embedded in the organic polymer material carrier. The catalyst can be used in hydrogenation, dehydrogenation, amination, dehalogenation or desulfurization reactions.

Method for preparing 2-propyl-1-heptanol

The invention relates to the technical field of alkanol preparation through olefine aldehyde hydrogenation, and discloses a method for preparing 2-propyl-1-heptanol, and the method comprises the following steps: in the presence of a catalyst, 2-propyl-2-heptenal is contacted with hydrogen to carry out hydrogenation reaction; the preparation method of the catalyst comprises the following steps: contacting alumina microspheres with a nitrogen-containing polymer solution, then carrying out first roasting on the contact product in an inert atmosphere to obtain a carrier, and then loading a metal active component on the carrier. By adopting the method disclosed by the invention, the selectivity of the 2-propyl-1-heptanol can be improved on the premise of ensuring the conversion rate of the 2-propyl-2-heptenal.

Method and system for preparing succinic acid

The invention relates to a system and a method for producing succinic acid through hydrogenation by taking maleic anhydride as a raw material. Two sections of hydrogenation reactors are adopted, a maleic anhydride solution is divided into two materials, one material is mixed with part of a liquid-phase material of a second-section reaction and then enters the first-section hydrogenation reactor from the upper part of the reactor, and the other material is mixed with a liquid-phase material of the first-section reaction and then enters the second-section hydrogenation reactor from the upper part of the reactor and is subjected to a two-section hydrogenation reaction; maleic anhydride is completely converted into butanedioic anhydride, and the butanedioic anhydride is subjected to light component removal, heavy component removal and hydrolysis-crystallization to obtain a succinic acid product meeting the requirements. According to the method, heat released by reaction can be effectively removed ...

Method for preparing alcohol by selective hydrogenation of aldehyde

The invention discloses a method for preparing alcohol by selective hydrogenation of aldehyde, which is characterized in that a selective hydrogenation reaction for preparing the alcohol from the aldehyde is carried out by contacting gasified aldehyde and hydrogen with a supported catalyst, wherein reaction conditions are described as follows: a reaction temperature is 60-350 DEG C; a reaction pressure is 0.1-2.0 MPa, the space velocity on the basis of the liquid volume of the aldehyde is 0.05-5.0/h; and a volume ratio of hydrogen to the aldehyde is 6000-12000:1. The supported catalyst supported on a high-molecular material is simple in preparation method, is low in cost, is high in catalytic activity and can effectively increase selectivity of a target product.

Platinum-cobalt dual-metal catalyst with room-temperature benzene hydrogenation activity and preparation method thereof

The invention discloses a platinum-cobalt dual-metal catalyst with room-temperature benzene hydrogenation activity and a preparation method thereof. The preparation method of the platinum-cobalt dual-metal catalyst comprises the following steps: an activated carbon carrier is added to a solution A for water bath and is evaporated and baked to obtain a catalyst precursor; and the solution A is a water solution containing cobalt salt and platinum salt. The invention simplifies the baking step in the prior catalyst preparation method, simplifies technological flows and saves energy sources, and the obtained catalyst has higher metal specific area and can catalyze an aromatic hydrogenation reaction under a room temperature condition. The invention has important economic values.

Amino acid enriched acellular dermal matrix implant as well as preparation method and application thereof

The invention provides an amino acid enriched acellular dermal matrix implant as well as a preparation method and application thereof. The matrix contains (a) a dermal matrix, (b) free amino acids accounting for 0.5-30 weight percent of the weight of the dermal matrix and (c) chitosan accounting for 0-30 weight percent of the weight of the dermal matrix, wherein the cell count in the dermal matrix is less than 5% based on the volume of the dermal matrix, and the free amino acids are combined with or adsorbed on the dermal matrix. The activated acellular dermal matrix can establish good blood circulation with the substrate of the wound surface in a short time, raise the success rate of implantation, and improve the implantation effect.

Bionic dermis and preparation method and application thereof

Supported catalyst and active form thereof, and preparation method and use thereof

A supported catalyst and preparation method thereof, the catalyst comprising an organic polymer material carrier, and Raney alloy particles supported on the organic polymer material carrier; basically all of the Raney alloy grains are partially embedded in the organic polymer material carrier. The catalyst can be used in hydrogenation, dehydrogenation, amination, dehalogenation or desulfurization reactions.

Catalytic hydrogenation method

The invention discloses a catalytic hydrogenation method which comprises the following steps: fixing a metal-polymeric catalyst on a rotor of a rotating packed bed reactor to form a compact catalyst bed layer; and carrying out selective hydrogenation reaction on unsaturated hydrocarbons on the metal-polymeric catalyst under a high gravity field as a hydrocarbon material and hydrogen pass through the rotating catalyst bed layer in a countercurrent or concurrent manner. The method disclosed by the invention overcomes the defect that in the prior art, a metal catalyst which is put into a stainless steel screen and is fixed on the rotating packed bed reactor is hard to process,and is good in catalytic performance, and meanwhile, waste catalysts are conveniently recovered.

Palladium-silver doped Raney copper catalyst, preparation method thereof and method for preparing 1-butene through selective hydrogenation of C4 raffinate

The invention relates to the technical field of C4 raffinate hydrogenation, in particular to a palladium-silver doped Raney copper catalyst, a preparation method thereof and a method for preparing 1-butene through selective hydrogenation of C4 raffinate. The preparation method of the catalyst comprises the following steps: (1) carrying out molding treatment on copper powder, aluminum powder, silver powder, palladium powder, an adhesive and nitric acid to obtain a catalyst precursor; (2) calcining the catalyst precursor to obtain a calcined product; and (3) carrying out aluminum extraction treatment on the calcined product by using a caustic alkali aqueous solution to obtain the palladium-silver doped Raney copper catalyst. The catalyst provided by the invention has relatively high catalytic activity and stability in a reaction for preparing 1-butene through selective hydrogenation of C4 raffinate, and still keeps relatively good activity after the reaction is performed for 100 hours.

Getragener Katalysator, die aktivierte Form davon und deren Herstellung und Verwendung

Getragener Katalysator und Herstellungsverfahren hierfür, wobei der Katalysator einen Materialträger aus dem organischen Polymer und Raney-Legierungsteilchen enthält, die auf dem Materialträger aus dem organischen Polymer getragen sind, worin im wesentlichen alle Raney-Legierungsteilchen teilweise in dem organischen Materialträger aus dem organischen Polymer eingebettet sind. Der Katalysator kann bei der Hydrierung-, Dehydrierung-, Aminierung-, Dehalogenierung- oder Desulfurierungsreaktion verwendet werden. A supported catalyst and method of manufacture therefor, wherein the catalyst comprises an organic polymer support material and Raney alloy particles carried on the organic polymer support material, wherein substantially all Raney alloy particles are partially embedded in the organic material organic support material , The catalyst can be used in the hydrogenation, dehydrogenation, amination, dehalogenation or desulfurization reaction.

Composite carrier for supported catalyst, palladium/composite carrier catalyst as well as preparation method and application of palladium/composite carrier catalyst

The invention relates to the technical field of catalysts, in particular to a composite carrier for a supported catalyst, a palladium/composite carrier catalyst, a preparation method and application of the palladium/composite carrier catalyst and an isooctenal hydrogenation method. The composite carrier is prepared from a nitrogen-containing polymer and metal acid through coordination crosslinking; wherein the specific surface area of the composite carrier is 90-210 m < 2 >/g, and the pore volume is 0.3-0.65 cm < 3 >/g. According to the composite carrier provided by the invention, the specific surface area and the pore volume of the composite carrier can be regulated; meanwhile, the composite carrier is used as a carrier of a palladium catalyst, metal palladium is dispersed and loaded through dual effects of pore channels in the composite carrier and a coordination effect of nitrogen atoms, and the catalytic selectivity of the palladium catalyst is improved.

Platinum-cobalt dual-metal catalyst with room-temperature benzene hydrogenation activity and preparation method thereof

The invention discloses a platinum-cobalt dual-metal catalyst with room-temperature benzene hydrogenation activity and a preparation method thereof. The preparation method of the platinum-cobalt dual-The invention discloses a platinum-cobalt dual-metal catalyst with room-temperature benzene hydrogenation activity and a preparation method thereof. The preparation method of the platinum-cobalt dual-metal catalyst comprises the following steps: an activated carbon carrier is added to a solution A for water bath and is evaporated and baked to obtain a catalyst precursor; and the solution A is a wametal catalyst comprises the following steps: an activated carbon carrier is added to a solution A for water bath and is evaporated and baked to obtain a catalyst precursor; and the solution A is a water solution containing cobalt salt and platinum salt. The invention simplifies the baking step in the prior catalyst preparation method, simplifies technological flows and saves energy sources, and tter ...

Liquid phase hydrogenation reaction system, application thereof and maleic anhydride hydrogenation method

The present invention provides a liquid phase hydrogenation reaction system and application thereof, and a maleic anhydride hydrogenation method, the liquid phase hydrogenation reaction system comprises: a first-stage hydrogenation reactor, the first-stage hydrogenation reactor comprises a top gas phase feed port, an upper liquid phase feed port and a tower bottom discharge port; the first-section reaction product cooler and the first-section gas-liquid separator are sequentially connected in series to a discharge hole end of the tower bottom of the first-section hydrogenation reactor; the second-stage hydrogenation reactor is communicated with the first-stage gas-liquid separator in series, and the second-stage hydrogenation reactor comprises a top gas-phase feed port, an upper liquid-phase feed port and a tower bottom discharge port; the second-section gas-liquid separator is communicated with a tower bottom discharge hole of the second-section hydrogenation reactor in series; and the ...

Low-temperature catalytic benzene hydrogenation method and special catalyst thereof

The invention discloses a catalyzing method of benzene hydrogenation at low temperature and a special catalyst thereof. The catalyzing method of the benzene hydrogenation at the low temperature provided by the invention uses a co-based catalyst to catalyze the benzene hydrogenation to react; wherein, the co-based catalyst is a cobalt single metal catalyst / or a noble metal-cobalt bimetal catalyst. Compared with a Ni-based catalyst or a Pt-based catalyst which is used for catalyzing the benzene hydrogenation to react at present, the invention can realize the benzene hydrogenation reaction at low temperature or even under condition of room temperature by using the co-based catalyst to catalyze the benzene hydrogenation to react and is provided with high hydrogenation activity. The invention provides a novel co-based catalyst, namely the noble metal-cobalt bimetal catalyst which is used in the benzene hydrogenation reaction. The noble metal-cobalt bimetal catalyst is provided with higher ...

Composition and preparation method and application thereof

The invention discloses a composition and a preparation method and application thereof. The composition comprises (a) azone with content of 1-4wt% in terms of the composition, (b) a pharmaceutically acceptable carrier and (c) an active component prepared by the following components: 15-60 parts of the root of red-rooted salvia, 10-40 parts of pseudo-ginseng, 5-20 parts of golden thread, 5-20 parts of rheum officinale and 5-20 parts of baical skullcap root by weight. The total weight of (a) and (c) accounts for 1-10% of the total weight of the composition.

Supported catalyst as well as preparation method thereof

The invention discloses a supported catalyst. The supported catalyst comprises an organic high polymer material, and Reyne alloy particles supported on the surface of an organic high polymer material supporter, wherein parts of the Reyne alloy particles are embedded in the organic high polymer material supporter. The supported catalyst disclosed by the invention has the advantages of being easy to form, high in catalytic activity, good in selectivity, and the like, and can be applied in a fixed-bed catalytic reaction device.

Method for preparing isooctanal

The invention relates to the technical field of isooctanal preparation, and discloses a method for preparing isooctanal. The method comprises the following steps: in the presence of a catalyst, contacting isooctenal with hydrogen to carry out hydrogenation reaction, the catalyst comprises a carrier and an active component loaded on the carrier, the carrier is alumina microspheres coupled with a polymer, and the active component is Pd. By adopting the method provided by the invention to prepare the isooctanal through liquid-phase hydrogenation of the isooctenal, the selectivity of the isooctanal is remarkably improved.

Skin wound comprehensive detection method

The invention discloses a skin wound comprehensive detection method, including: the standard value of a three-dimensional measuring scale is obtained; information of a target image is acquired by shooting, the target image comprises a skin wound part image and the three-dimensional measuring scale image; correction deviation of the standard value of the three-dimensional measuring scale and the three-dimensional measuring scale image in the target image is obtained, restoring is carried out on the skin wound part image in the target image according to the correction deviation, and the actual information of the skin wound part image is obtained; and the actual information of the skin wound part image is uploaded to a database to be stored. The method can accurately record the skin wound data characteristic and is convenient for doctor to do follow-up visit and diagnosis and treatment.

Maleic anhydride hydrogenation reaction method and maleic anhydride hydrogenation reactor

The invention provides a maleic anhydride hydrogenation reactor and a hydrogenation reaction method thereof, and the method comprises the following steps: a maleic anhydride raw material and hydrogen enter a first hydrogenation reaction section of the hydrogenation reactor, a reaction material discharged from the first hydrogenation reaction section is led out of the reactor, is subjected to heat exchange by a cooler, and then returns to a lower hydrogenation reaction section; and the hydrogenation reaction is completed in each hydrogenation reaction section. According to the invention, one hydrogenation reactor is adopted, and the catalyst is filled in multiple layers, so that a plurality of reactors are saved, equipment and pipelines required for connecting the reactors are saved, and the investment is saved; the method can effectively control the reaction heat release amount, is good in gas-liquid-solid contact, is high in effective utilization rate of the catalyst, and is low in investment ...

Low-temperature catalytic benzene hydrogenation method and special catalyst thereof

The invention discloses a catalyzing method of benzene hydrogenation at low temperature and a special catalyst thereof. The catalyzing method of the benzene hydrogenation at the low temperature provided by the invention uses a co-based catalyst to catalyze the benzene hydrogenation to react; wherein, the co-based catalyst is a cobalt single metal catalyst / or a noble metal-cobalt bimetal catalyst. Compared with a Ni-based catalyst or a Pt-based catalyst which is used for catalyzing the benzene hydrogenation to react at present, the invention can realize the benzene hydrogenation reaction at low temperature or even under condition of room temperature by using the co-based catalyst to catalyze the benzene hydrogenation to react and is provided with high hydrogenation activity. The invention provides a novel co-based catalyst, namely the noble metal-cobalt bimetal catalyst which is used in the benzene hydrogenation reaction. The noble metal-cobalt bimetal catalyst is provided with higher ...

Composition and preparation method and application thereof

The invention discloses a composition and a preparation method and application thereof. The composition comprises (a) azone with content of 1-4wt% in terms of the composition, (b) a pharmaceutically acceptable carrier and (c) an active component prepared by the following components: 15-60 parts of the root of red-rooted salvia, 10-40 parts of pseudo-ginseng, 5-20 parts of golden thread, 5-20 parts of rheum officinale and 5-20 parts of baical skullcap root by weight. The total weight of (a) and (c) accounts for 1-10% of the total weight of the composition.

Method for low-temperature removal of micro oxycarbide

The invention discloses a method for low-temperature removal of micro oxycarbide. The method is characterized by comprising the following steps: enabling hydrogen-rich gas containing oxycarbide to be in contact with a fixed bed catalyst with high metal content in a fixed bed reactor, and performing methanation reaction under the conditions that the reaction temperature is 90-125 DEG C, the pressure is 0.1-7.0MPa, the gas space velocity is smaller than 6000/h, and the inlet CO concentration is smaller than 3000ppm. By adopting the method, the micro CO in hydrogen can be removed to be less than 5ppm.

Process for hydrogenation of butadiene

The invention relates to the technical field of preparation of 1-butene by selective hydrogenation of C4 fractions, and discloses a hydrogenation method of butadiene. The method comprises the following steps: under hydrogenation conditions, a butadiene-containing material is contacted with a catalyst, the catalyst comprises a carrier and metal active components loaded on the carrier, the metal active components comprise a first metal active component and an optional second metal active component, the first metal active component is Cu, and the optional second metal active component is Cu; the second metal active component is selected from at least one of transition metals except Cu, and the carrier is carbon-modified alumina microspheres. By adopting the method disclosed by the invention, a relatively high 1, 3-butadiene conversion rate can be obtained, and the selectivity of 1-butene is high.

Method for preparing ethanol

The invention relates to the technical field of ethanol preparation, and discloses a method for preparing ethanol, which comprises the following steps: acetic ester, hydrogen and a catalyst taking carbon-doped alumina microspheres as a carrier are contacted for hydrogenation reaction, the active component in the catalyst is Cu, the catalyst selectively contains an auxiliary agent, and the auxiliary agent is selected from Zn and/or Mg. By adopting the method provided by the invention to prepare ethanol by taking acetate as a raw material, the conversion rate of acetate and the selectivity of ethanol can be improved.

Composite catalyst and preparation method therefor

Disclosed is a composite catalyst, comprising carbon in a continuous phase and Raney alloy particles in a dispersed phase. The Raney alloy particles are dispersed evenly or unevenly in the carbon in a continuous phase, and the carbon in a continuous phase is obtained by carbonizing at least one carbonizable organic substance. The catalyst has good particle strength, high catalytic activity, and good selectivity.

Method for removing trace amount of oxycarbide in hydrogen-rich gas

The invention discloses a method for removing trace amount of oxycarbide in hydrogen-rich gas. The method for removing the trace amount of oxycarbide in the hydrogen-rich gas is characterized in that hydrogen-rich gas containing oxycarbide is in contact with an activated compound type catalyst, methanation reaction is carried out under the condition that the temperature is 150-350 DEG C, the pressure is 0.1-7.0MPa and the gas space velocity is 1000-40000/h, and CO at an exit is less than 5ppm.

Reforming effect of arginine to recessive harm of skin tissue of diabetic

The invention discloses the novel use of arginine in preparing therapeutic medicine compositions for treating skin recessive damage caused by diabetes, wherein the medicament can make the diabetes patient's skin recover to near the normal thickness.

Method for removing carbon monoxide

The invention relates to the technical field of carbon monoxide removal, and discloses a method for removing carbon monoxide, which comprises the following step: under the condition of oxidizing carbon monoxide, contacting a material containing carbon monoxide with a catalyst taking carbon-modified monodisperse alumina microspheres as a carrier. The specific alumina microspheres are subjected to carbon and nitrogen doping to obtain the carrier, then the carrier is loaded with the metal active component to obtain the catalyst, then the catalyst is used for a carbon monoxide removal reaction, and the removal rate of carbon monoxide is increased.

Method for preparing decanol by liquid phase hydrogenation of decenal

The invention discloses a method for preparing decanol by liquid phase hydrogenation of decenal. The method includes following steps: performing a hydrogenation reaction to an aldehyde to prepare an alcohol in a fixed bed reactor with a Raney nickel catalyst supported on an organic high-molecular supporter; enabling the decenal to flow dropwisely through a catalyst bed in a liquid status under a hydrogen atmosphere; and performing a complete hydrogenation reaction to the decenal on the raney nickel catalyst supported on the organic high-molecular supporter at a certain temperature and under a certain pressure to obtain the corresponding decanol. The catalyst is high in activity, is good in selectivity and is stable in performances. A hydrogenated product is less in residual decenal and is good in quality.

COMPOSITE CATALYST AND PREPARATION METHOD THEREFOR

Disclosed is a composite catalyst, comprising carbon in a continuous phase and Raney alloy particles in a dispersed phase. The Raney alloy particles are dispersed evenly or unevenly in the carbon in a continuous phase, and the carbon in a continuous phase is obtained by carbonizing at least one carbonizable organic substance. The catalyst has good particle strength, high catalytic activity, and good selectivity.

Monatomic palladium catalyst and preparation method thereof

The invention relates to the technical field of catalysts, in particular to a monatomic palladium catalyst and a preparation method thereof. The atomic palladium catalyst comprises a carrier and an active component palladium, the carrier is a high-molecular metal complex, a high-molecular ligand contained in the high-molecular metal complex is a nitrogen-containing polymer, and metal ions contained in the high-molecular metal complex are molybdenum ions; wherein the active component palladium is distributed on the carrier in a monatomic form. According to the monatomic palladium catalyst provided by the invention, the metal polymer complex which does not need to be modified is used as a carrier, monatomic dispersion loading of palladium metal is realized, and the loading capacity of the palladium metal can be reduced. Meanwhile, the method is simple, the technological process is simplified, and industrial production is facilitated.

Method for removing micro-scale carbon monoxide at low temperature

The invention discloses a method for removing micro-scale carbon monoxide at a low temperature. The method includes following steps: (1) contacting a hydrogen-rich gas containing the carbon oxide with a supported catalyst in a fixed bed reactor; and (2) performing a methanation reaction at a reaction temperature of 90-125 DEG C under a reaction pressure of 0.1-7.0 MPa at a gas space velocity being less than 6000 h<-1> with the concentration of carbon monoxide at an inlet being less than 3000 ppm. The method can allow the micro-scale CO in the hydrogen-rich gas to be removed to be less than 5 ppm.

Pyrolysis gasoline selective hydrogenation method

The invention discloses a pyrolysis gasoline selective hydrogenation method which is characterized in that a reaction is carried out between a liquid-phase material flow, containing a pyrolysis gasoline C6-C8 and/or C5-C9 hydrocarbon compound middle fraction and/or a pyrolysis gasoline C5-204 DEG C hydrocarbon compound total fraction and hydrogen, which are employed as raw materials, through contact with a catalyst supported on an organic high-molecular material and being placed in a fixed bed reactor, wherein reaction conditions are described as follows: a reaction temperature is 35-120 DEG C; a reaction pressure is 2.0-5.0 MPa, the space velocity of fresh oil liquid is 1-16/hours; and a volume ratio of hydrogen to the oil is 25-300.

Crude hydrogen gas purification method

The present invention discloses a gas purification method. According to the present invention, a liquid catalyst reactor and a fixed bed catalyst are connected in series to remove trace amount of CO gas in hydrogen gas, and the liquid catalyst is the introduced efficient nanometer precious metal liquid-phase catalysis system, such that the gas-liquid double-phase (quasi two-phrase) methanation reaction in the solution condition is achieved, and the method is the completely-new methanation method; with the new liquid-phase nanometer precious metal catalysis and traditional gas-solid double-phase catalyst combined method, the reactor temperature runaway phenomenon and the carbonyl metal hazard are effectively avoided; and the method of the present invention is used for hydrogenation removal on the trace amount of carbon oxides in hydrogen-rich gas in fields of ethylene devices, ammonia plant synthesis devices and fuel cells.

Tubular reactor for preparing butanedioic anhydride and method for preparing butanedioic anhydride

The invention provides a tubular reactor for preparing butanedioic anhydride, which comprises a tube layer and a shell layer, the tube layer is used for preparing butanedioic anhydride by hydrogenation reaction of a maleic anhydride raw material, and the shell layer is used for circulating a cooling medium; the raw material heat exchanger is connected with a bottom liquid-phase feeding hole of the pipe layer; a feeding hole of the gas-liquid separator is connected with a discharging hole in the top of the pipe layer; a gas phase outlet in the top of the gas-liquid separator is connected with a gas phase feeding hole in the lower part of the pipe layer; the cooling medium storage tank is used for providing a cooling medium for the shell layer. The invention provides a method for preparing butanedioic anhydride, which is characterized in that in a hydrogenation reaction stage, a cooling medium is introduced into a shell layer through a cooling medium storage tank to remove reaction heat in ...

Method for selective hydrogenation of pyrolysis gasoline

The invention discloses a method for selective hydrogenation of pyrolysis gasoline. The method comprises the following steps: fixing a metal-polymer catalyst on a rotor of a rotating packed bed reactor to form a compact catalyst bed layer; enabling pyrolysis gasoline and hydrogen to pass through the rotating catalyst bed layer in a countercurrent or co-current flow manner; and performing selective hydrogenation reaction on unsaturated hydrocarbon on a metal-polymer catalyst under a high gravity field. The catalyst disclosed by the invention is almost free of acidity on the surface, and has relatively high catalytic performance; the packed bed reactor has the advantages of good mass transfer performance and heat transfer performance, small volume, low investment cost, large processing capacity and good operation elasticity; meanwhile, the waste catalyst disclosed by the invention is relatively convenient to recycle; and a high-molecular polymer can be removed by heating a catalyst to certain ...

Method for preparing cyclohexane through hydrogenation of benzene

The invention discloses a method for preparing cyclohexane through hydrogenation of benzene. The method is characterized in that the cyclohexane is prepared by catalysis of hydrogenation of benzene with a supported catalyst in a fixed bed reactor, wherein the supported catalyst comprises an organic high-molecular material supporter and Raney alloy particles supported on the surface of the organic high-molecular material supporter. The method can solve problems of low catalytic activity and poor catalytic stability and the like in a hydrogenation reaction for preparing the cyclohexane from the benzene in the prior art.

Bionic dermis as well as preparation method and application thereof

The invention discloses bionic dermis. An implant is a three-dimensional braided fabric of biocompatible fiber, and the fiber adsorbs, absorbs or is wrapped with protein substance favorable for skin or dermis restoration. The invention also discloses a preparation method for the bionic dermis and application thereof.

Method for preparing octanol

The invention relates to the technical field of octanol preparation, and discloses an octanol preparation method, which comprises: in the presence of hydrogen, contacting octenal and an optional solvent with a catalyst, the catalyst comprises a carrier as well as a carbon element and an active component which are loaded on the carrier, the carrier is alumina microspheres, the active component is at least one of Ni, Cu and Co, and the content of the active component in the obtained catalyst is 30-50wt% in terms of metal elements according to the dosage of the active component. By adopting the method for preparing the octanol, the conversion rate of the octenal and the yield of the octanol can be improved.

Method for preparing octanal from octenal

The invention relates to the technical field of octanol preparation, and discloses a method for preparing octanal from octenal, and the method comprises the following steps: in the presence of a catalyst, octenal is contacted with hydrogen to carry out hydrogenation reaction; wherein the catalyst is prepared by the following steps: (1) providing alumina microspheres, the particle diameter of which is 200-800 [mu] m, and the coefficient of variation of which is 3-8%; (2) mixing the alumina microspheres with sugar, and carbonizing to obtain a carrier; and (3) loading the transition metal active component on the carrier. By adopting the method for preparing octanal, the conversion rate of octenal and the selectivity of octanal can be improved.

COMPOSITE CATALYST AND PREPARATION METHOD THEREFOR

Disclosed is a composite catalyst, comprising carbon in a continuous phase and Raney alloy particles in a dispersed phase. The Raney alloy particles are dispersed evenly or unevenly in the carbon in a continuous phase, and the carbon in a continuous phase is obtained by carbonizing at least one carbonizable organic substance. The catalyst has good particle strength, high catalytic activity, and good selectivity. 1. An activated catalyst , comprising carbon as a continuous phase , activated Raney alloy particles as a dispersed phase dispersed in the continuous phase , and at least one promoter selected from the group consisting of Mo , Cr , Ti , Pt , Pd , Rh and Ru ,wherein the activated Raney alloy particles comprise at least one first metal selected from the group consisting of nickel, cobalt, copper and iron, andwherein the activated catalyst has a porous structure.2. The activated catalyst of claim 1 , wherein the activated Raney alloy particles have a content of from 10 wt. % to 90 wt. % claim 1 , based on the total weight of the activated catalyst.3. The activated catalyst of claim 1 , wherein the activated Raney alloy particles have a content of from 40 wt. % to 80 wt. % claim 1 , based on the total weight of the activated catalyst.4. The activated catalyst of claim 1 , wherein the at least one promoter has a content of from 0.01 wt % to 5 wt % of the total weight of the Raney alloy particles.5. The activated catalyst of claim 1 , wherein that the activated Raney alloy particles have an average particle size of from 0.1 micron to 1000 microns.6. The activated catalyst of claim 1 , wherein the activated catalyst is in a shape selected from the group consisting of sphere claim 1 , semi-sphere claim 1 , ring claim 1 , semi-ring claim 1 , trilobal extrudate claim 1 , cylinder claim 1 , semi-cylinder claim 1 , hollow cylinder claim 1 , prism claim 1 , cube claim 1 , cuboid claim 1 , tablet claim 1 , pellet claim 1 , tooth claim 1 , and irregular particles.7. The ...

活性无细胞真皮基质

A non-cell active derminal matrix used for skin transplanting contains the derminal matrix containing basically no cells and the cell factor chosen from fibroblast growth factor, vascular endothelialgrowth factor, platelet derived growth factor, transforming growth factor-alpha, or their mixture. Its advantages are high successful rate of skin transplantation and high transplant effect.

Method for removing alkyne from C4 fraction through hydrogenation

The invention relates to the technical field of C4 fraction hydrogenation alkyne removal, and discloses a C4 fraction hydrogenation alkyne removal method. The method comprises: under a hydrogenation condition, contacting a C4 fraction with a catalyst, the catalyst comprising a carrier and metal active components loaded on the carrier, the metal active components comprising a first metal active component and an optional second metal active component, the first metal active component being Cu, and the optional second metal active component being Cu, the second metal active component is selected from at least one of Ni, Co, Pt, Pd, Rh, Ru, Mn, Co and Ag, and the carrier is carbon modified alumina microspheres. When the method provided by the invention is used for hydrogenation alkyne removal of the C4 fraction, a higher alkyne removal rate can be obtained under the condition of ensuring the lowest loss rate of butadiene.

Preparation method of C2 selective hydrogenation catalyst

The invention discloses a preparation method of a C2 selective hydrogenation catalyst. The preparation method includes the steps of: 1) dissolving water-soluble cellulose ether in deionized water in a water bath, mixing with a salt solution of a catalyst active component, adjusting the pH value to a neutral state and stirring, wherein the weight ratio of deionized water, the catalyst active component and water-soluble cellulose ether is 1:(0.0001-0.001):(0.0001-0.005); 2) loading; and 3) drying and roasting. The of water-soluble cellulose ether provided by the invention can be used as an effective stabilizer to form in the solution mono dispersed palladium nanoparticles, which are loaded to a carrier by an immersion method to form more active centers. The method provided by the invention improves the catalyst activity and the selectivity hydrogenation products, enhances the dispersion and utilization rate of palladium and reduces the load capacity of palladium.

Low-temperature methanation catalyst and preparation method thereof

The invention discloses a low-temperature methanation catalyst including an organic high-molecular material supporter and Raney alloy particles supported on a surface of an organic high-molecular material supporter, wherein the Raney alloy includes following components, by weight, 30-60% of nickel, 0.01-5% of iron, 0.01-5% of chromium, 0.01-5% of lanthanum and 30-60% of aluminum. The catalyst is high in activity in a low-temperature methanation reaction.

Composite type catalyst and preparation method thereof

The invention discloses a composite type catalyst comprising a continuous-phase carbon and dispersed-phase raney alloy particles, wherein the dispersed-phase raney alloy particles are evenly or unevenly dispersed in the continuous-phase carbon, and the continuous-phase carbon is obtained by carbonizing carbonizable organic compounds and mixtures thereof at a high temperature. The catalyst has the advantages of good particle strength, high catalytic activity, good selectivity and the like.

C4 hydrocarbon catalytic distillation method

The invention discloses a method in which a Raney catalyst is employed for selective hydrogenation in catalytic distillation of C4 hydrocarbons, wherein the method includes a step of when a C4 material flow is subjected to rectification in a debutanization column, performing a partially or a totally selective hydrogenation process to unsaturated hydrocarbon impurities in the C4 material flow by means of the Raney catalyst. The Raney catalyst being supported on a high-molecular material is easy to prepare, is low in cost, is high in catalytic activity and is excellent in selectivity.

Man-machine interaction animation generation method and device, computer equipment and storage medium

The invention relates to a man-machine interaction animation generation method and device, computer equipment, a storage medium and a computer program product. The method comprises the steps of displaying a musculoskeletal template corresponding to a target role in response to a selection operation triggered on an animation editing page; in response to a triggering operation on the musculoskeletal template, performing musculoskeletal filling on the skin of the target role to obtain the target role containing the musculoskeletal; adjusting the musculoskeletal template in the target role to obtain an adjusted target role; determining the muscle fiber direction of each muscle area in the adjusted target role, and generating muscle fibers corresponding to each muscle area based on the muscle fiber direction to obtain a target role containing the muscle fibers; the muscle fibers can generate corresponding deformation when the skeleton of the target role moves; and generating a skeletal animation ...

Method for removing carbon monoxide in crude hydrogen gas through low-temperature methanation and hydrogen refined by adopting method

The invention discloses a method for removing carbon monoxide in crude hydrogen gas through low-temperature methanation, which comprises the following steps of: contacting a carbon-modified alumina microsphere loaded catalyst with the crude hydrogen gas to perform methanation reaction to remove the carbon monoxide; the carbon-modified alumina microsphere loaded catalyst comprises a carbon-modified alumina microsphere composite carrier and an active component loaded on the composite carrier, on the basis that the weight of the composite carrier is 100%, the content of the carbon is 0.01-10 wt%; on the basis that the weight of the catalyst is 100%, the content of the active component is 20-60 wt%. According to the method, the carbon-modified alumina microsphere-loaded catalyst is adopted, trace CO is removed through methanation reaction under the gas-solid two-phase condition, and the trace CO in the crude hydrogen gas can be removed to 1 ppm or below.

Palladium-silver-doped carbonized Raney copper catalyst, preparation method thereof and method for preparing 1-butene through selective hydrogenation of C4 raffinate

The invention relates to the technical field of C4 raffinate hydrogenation, in particular to a palladium-silver doped carbonized Raney copper catalyst, a preparation method thereof and a method for preparing 1-butene through selective hydrogenation of C4 raffinate. The preparation method of the catalyst comprises the following steps: (1) mixing a carbonizable organic matter, a curing agent and a curing accelerator to obtain a mixture; (2) carrying out molding treatment on copper powder, aluminum powder, silver powder, palladium powder, a binder, nitric acid and the mixture to obtain a catalyst precursor; (3) calcining the catalyst precursor to obtain a calcined product; and (4) carrying out aluminum extraction treatment on the calcined product by using a caustic alkali aqueous solution to obtain the palladium-silver doped carbonized Raney copper catalyst. Compared with a common Raney copper catalyst, the catalyst provided by the invention has a lower bulk ratio, has higher catalytic activity ...

Method for preparing methyl isobutyl ketone through liquid phase hydrogenation of 4-methyl-3-pentene-2-ketone

The invention relates to the technical field of unsaturated ketone hydrogenation, and discloses a method for preparing methyl isobutyl ketone through liquid phase hydrogenation of 4-methyl-3-pentene-2-ketone. The method comprises the following steps: in the presence of a catalyst, contacting 4-methyl-3-pentene-2-ketone with hydrogen to carry out hydrogenation reaction, wherein the catalyst is prepared by the following method: (1) contacting alumina microspheres with a polymer solution, so that the polymer is coupled to the alumina microspheres; and (2) under the condition that the polymer is not decomposed, loading a metal active component on the aluminum oxide microspheres coupled with the polymer obtained in the step (1). By adopting the method provided by the invention to prepare the methyl isobutyl ketone through liquid phase hydrogenation of the 4-methyl-3-pentene-2-ketone, the conversion rate of the 4-methyl-3-pentene-2-ketone can be ensured, and meanwhile, the selectivity of the ...

Skin wound comprehensive detection method

The invention discloses a skin wound comprehensive detection method, including: the standard value of a three-dimensional measuring scale is obtained; information of a target image is acquired by shooting, the target image comprises a skin wound part image and the three-dimensional measuring scale image; correction deviation of the standard value of the three-dimensional measuring scale and the three-dimensional measuring scale image in the target image is obtained, restoring is carried out on the skin wound part image in the target image according to the correction deviation, and the actual information of the skin wound part image is obtained; and the actual information of the skin wound part image is uploaded to a database to be stored. The method can accurately record the skin wound data characteristic and is convenient for doctor to do follow-up visit and diagnosis and treatment.

Bionic dermis and preparation method and application thereof

The invention discloses a bionic dermis. An implant is a three-dimensional braided fabric of biocompatible fiber, and the fiber is adsorbed, absorbed or enwrapped with an extracellular matrix component substance of normal skins and/or dermis tissues which is advantageous for repairing skins or dermises. The invention also discloses a preparation method and application of the bionic dermis.

Method for refining glycol

The invention discloses a method for refining glycol. According to the method, a loaded type Raney nickel catalyst is used for removing aldehyde from the glycol in a fixed bed reactor. The catalyst comprises an organic high-molecular material carrier and Raney nickel alloy particles which are loaded on the surface of the organic high-molecular material carrier, wherein the high-molecular material carrier is plastic or a modification product of the plastic; the Raney nickel alloy comprises Raney nickel and an element which can be leached; the element which can be leached is at least one of aluminum, zinc and silicon; the weight ratio of the Raney nickel to the element which can be leached is 1:99 to 10:1. The catalyst is relatively high in polymerization activity and good in selectivity when being used for removing the aldehyde from the glycol in a fixed bed. The method can be used for easily recycling metals in a waste catalyst, small pollution is caused, and the obtained glycol is high ...

Method for preparing alcohol by decylenaldehyde hydrogenation

The invention discloses a method for preparing alcohol by decylenaldehyde liquid-phase hydrogenation. The method is characterized by comprising the step of contacting liquid-phase decylenaldehyde with an activated composite catalyst to prepare alcohol in the presence of hydrogen, at a reaction temperature of 50-200 DEG C and a reaction pressure of 0.5-8.0MPa, and under the condition that by the liquid-state volume of aldehyde, a reaction air speed is 0.05-5.0/h and the volume ratio of hydrogen to aldehyde is (200 to 10000): 1. The method disclosed by the invention is high in conversion rate, good in selectivity and stable in performance, residual olefine aldehyde in the obtained product is few, and the quality of the product alcohol is good.

Experiment integrated management system, routing apparatus, experiment management control system and method

The invention relates to a test total management system, a routing device, a test management and control system and a method. The test total management system comprises a testing equipment information allocation cell, a memory cell, a communication cell and a task scheduling cell. The routing device comprises a route module, a general multiplex-interface module and a general purpose interface bus. The test management and control system comprises a management and control device and a test total management system. The method of the invention comprises that connected routing device ports are provided for each test device, and the configuration information is stored and command texts are initialized; corresponding initialized command texts are utilized at one time according to triggering information for starting a test and corresponding test device is initialized. The one-time initialization of all test devices needed for the test avoids the initialization of every test device, simplifies the ...

Ethylene glycol hydrofining method

The invention discloses an ethylene glycol hydrofining method which adopts a composite hydrogenation catalyst. The catalyst comprises continuous-phase carbon and disperse-phase Raney alloy particles, wherein the disperse-phase Raney alloy particles are uniformly or nonuniformly dispersed in the continuous-phase carbon. The catalyst particles have high strength and high catalytic activity, and obviously enhance the ultraviolet transmittance of the hydrogenated ethylene glycol.

Remote electrocardio monitoring system

The invention discloses a remote electrocardio monitoring system, which comprises data acquisition terminal users, an equipment manufacturer information system group and an electrocardio consultation system, wherein the data acquisition terminal users collect electrocardio data and user information and transmit the electrocardio data and the user information through a network; the equipment manufacturer information system group identifies, receives, stores and analyzes the electrocardio data and the user information at the same time; the electrocardio consultation center receives the analyzed electrocardio data and user information, converts into the electrocardio data and the user information into a uniform standard format and transforms the electrocardio data with the uniform standard format into an electrocardiogram, and a remote electrocardio doctor conducts diagnosis and sends the diagnostic information to the data acquisition terminal users through the network. Therefore, various ...

Method for removing micro-scale aldehyde through hydrogenation of alcohol

The invention discloses a method for removing micro-scale aldehyde through hydrogenation of alcohol. The method is characterized by comprising following steps: contacting the alcohol containing the aldehyde with a supported catalyst under a hydrogen atmosphere to carry out a hydrogenation reaction at a reaction temperature of 50-200 DEG C under a reaction pressure of 0.5-8.0 MPa at a liquid space velocity of 0.05-5.0 h<-1> according to a liquid volume of the alcohol with a volume ratio of the hydrogen to the alcohol being 100-5000:1, wherein the content of the aldehyde in the alcohol is 0.05-5 wt%. The catalyst supported on a high-molecular material supporter is easy to prepare, is low in cost, is high in catalytic activity and can increase selectivity of a targeted product.

N-butyl alcohol composition obtained through hydrogenation reaction of n-butyraldehyde

The invention discloses an n-butyl alcohol composition obtained through hydrogenation reaction of n-butyraldehyde. The n-butyl alcohol composition comprises, beside the n-butyl alcohol, less than 0.05% by weight of n-butyl ether and other common components during production of the n-butyl alcohol. The n-butyl alcohol composition prepared with a high-molecular-polymer supported Raney nickel catalyst is quite low in the content of the n-butyl ether, so that production energy consumption is reduced and quality and yield of the product are increased.

Method for realizing page insertion in WEB application and WEB server

The invention discloses a method for realizing page insertion in WEB application and a WEB server, which are applied to the technical field of networks. The method comprises the following steps of: after receiving a WEB page request initiated by a user terminal by the WEB server, determining a corresponding WEB page file according to a website in the request and analyzing; when analyzing an expanded point in the WEB page file, searching the expansion realization corresponding to the expanded point according to a preliminarily generated expanded relation corresponding base, wherein the expanded point is used for hanging the expansion realization and the expansion realization refers to the realization content hung on the corresponding expanded point; and inserting the realization content of the expansion realization corresponding to the expanded point and returning a result after the WEB page file operates to the user terminal. The method and the device provided by the embodiment of the invention ...

Method for preparing cyclohexane by hydrogenating benzene

The invention relates to a method for preparing cyclohexane by hydrogenating benzene. A gas-phase series-connected double-fixed bed reactor is adopted, and the gas-phase series-connected double-fixed bed reactor comprises a first reactor and a second reactor; the first reactor is filled with a load type cobalt-based catalyst; the second reactor is filled with a load type nickel-based catalyst. Compared with the traditional process for preparing the cyclohexane by hydrogenating the benzene, the method disclosed by the invention can effective control the generation of reaction heat and prevent the phenomenon of 'temperature runaway' generated by excessively high reaction speed; in addition, the method disclosed by the invention sufficiently makes up the cost raise brought by increasing a reactor in such a way that double reactors both adopt non-noble metal catalysts and can provide high transformation ratio.

Catalyst used for catalytic rectification selective hydrogenation, preparation method and application thereof

The invention discloses a catalyst used for catalytic rectification selective hydrogenation, which includes an organic supporter and a metal catalyst powder embedded inside the surface of the organic supporter. On the total weight of the catalyst, the content of the organic supporter is 20.0-91.85% by weight and the content of the metal catalyst powder is 8.15-80.0% by weight. The metal catalyst powder is 50-100 meshes in particle size. The organic supporter is selected from at least one of the group comprising thermoplastic resin/plastic, thermosetting resin/plastic, rubber and a modified material of the high-molecular polymer. The catalyst, when being used in a catalytic rectification selective hydrogenation technology, is excellent in activity, selectivity, anti-wearing performance, stability and mechanical strength and is better in liquid distribution, can increase a gas-liquid exchange area and a bubbling center, is high in efficiency and is less in liquid holdup. The catalyst has ...

Alumina microsphere supported catalyst, preparation method thereof and ethylene glycol hydrofining purification method

The invention relates to an alumina microsphere supported catalyst. The alumina microsphere supported catalyst comprises a nitrogen-containing high-molecular polymer modified alumina microsphere composite carrier and an active component supported on the composite carrier. The preparation method of the catalyst comprises the following steps: adding aluminum oxide microspheres into a nitrogen-containing high-molecular polymer solution, and then carrying out solvothermal reaction and post-treatment to obtain a nitrogen-containing high-molecular polymer modified aluminum oxide microsphere composite carrier; and immersing the nitrogen-containing high-molecular polymer modified alumina microsphere composite carrier into an active component precursor solution, drying, and reducing to obtain the catalyst. The alumina microsphere supported catalyst is high in activity, good in selectivity and narrow in particle size distribution, can be used for ethylene glycol hydrofining reaction, and has good ...

Method for preparing decanol by liquid phase hydrogenation of decenal

The invention discloses a method for preparing decanol by liquid phase hydrogenation of decenal. In the method, a first hydrogenation step is carried out by means of at least one liquid phase hydrogenation reactor with a first catalyst, wherein the first catalyst is a nickel-series or a copper-series catalyst supported on an oxide; a second hydrogenation step is carried out by means of at least one liquid phase hydrogenation reactor with a second catalyst, wherein the second catalyst is a Raney nickel catalyst supported on an organic high-molecular supporter. By means of the two-step hydrogenation process, residual decenal in a hydrogenated product is less. The decanol is good in quality and is high in yield.

Carbon-modified aluminum oxide microsphere-loaded catalyst as well as preparation method and application thereof

The invention discloses a carbon-modified alumina microsphere loaded catalyst as well as a preparation method and application thereof. The catalyst comprises a carbon-modified alumina microsphere composite carrier and an active component loaded on the composite carrier. The preparation method of the catalyst comprises the following steps: adding aluminum oxide microspheres into a nitrogen-containing high-molecular polymer solution, and then carrying out solvothermal reaction and post-treatment to obtain a nitrogen-containing high-molecular polymer modified aluminum oxide microsphere composite carrier; roasting the aluminum oxide microsphere composite carrier modified by the nitrogen-containing high-molecular polymer in an inert atmosphere to obtain a carbon-modified aluminum oxide microsphere composite carrier; and immersing the carbon-modified alumina microsphere composite carrier into the active component precursor solution, taking out, drying and roasting to obtain the carbon-modified ...

Method for removing trace aldehydes by alcohol hydrogenation

The invention discloses a method for removing trace aldehydes by alcohol hydrogenation, which is characterized by comprising the following steps: in a hydrogen atmosphere, contacting aldehyde-containing alcohol with an activated composite catalyst, and carrying out hydrogenation reaction at 50-200 DEG C under the reaction pressure of 0.5-8.0 MPa, wherein the liquid air speed by alcohol liquid volume is 0.05-5.0 h<-1>, the volume ratio of the hydrogen to the alcohol is (100-5000):1, and the aldehyde content in the alcohol is 0.05-5 wt%. The catalyst has the advantages of simple preparation method, favorable strength, high temperature resistance, high catalytic activity and favorable selectivity for the target product.

SUPPORTED CATALYST, ITS ACTIVATED FORM, AND THEIR PREPARATION AND USE

A supported catalyst and preparation method thereof, the catalyst comprising an organic polymer material carrier and Raney alloy particles supported on the organic polymer material carrier, wherein substantially all of the Raney alloy particles are partially embedded in the organic polymer material carrier. The catalyst can be used in hydrogenation, dehydrogenation, amination, dehalogenation or desulfuration reactions. 1. A supported catalyst , comprising: an organic polymer material support and Raney alloy particles supported on the organic polymer material support , wherein substantially all of the Raney alloy particles are partially embedded into the organic polymer material support.2. The catalyst of claim 1 , wherein the Raney alloy comprises at least one Raney metal and at least one leachable element.3. The catalyst of claim 2 , wherein the at least one Raney metal is chosen from nickel claim 2 , cobalt claim 2 , copper claim 2 , and iron claim 2 , and the at least one leachable element is chosen from aluminum claim 2 , zinc claim 2 , and silicon.4. The catalyst of claim 2 , wherein the weight ratio of the Raney metal to the leachable element in the Raney alloy is from 1:99 to 10:1.5. The catalyst of claim 4 , wherein the weight ratio of the Raney metal to the leachable element in the Raney alloy is from 1:10 to 4:1.6. The catalyst of claim 2 , wherein the Raney alloy further comprises at least one promoter chosen from Mo claim 2 , Cr claim 2 , Ti claim 2 , and Ru in an amount of from 0.01 wt. % to 5 wt. % claim 2 , based on the total weight of the Raney alloy.7. The catalyst of any one of to claim 2 , wherein the organic polymer material is a plastic or a modified plastic.8. The catalyst of any one of to claim 2 , wherein the organic polymer material is chosen from polyolefins claim 2 , polyamides claim 2 , polystyrenes claim 2 , epoxy resins claim 2 , phenolic resins claim 2 , and mixtures and blends thereof.9. The catalyst of any one of to claim 2 , wherein ...

Supported Catalyst, Its Activated Form, and their Preparation and Use

A supported catalyst and preparation method thereof, the catalyst comprising an organic polymer material carrier and Raney alloy particles supported on the organic polymer material carrier, wherein substantially all of the Raney alloy particles are partially embedded in the organic polymer material carrier. The catalyst can be used in hydrogenation, dehydrogenation, amination, dehalogenation or desulfuration reactions. 1. A supported catalyst , comprising: an organic polymer material support and Raney alloy particles supported on the organic polymer material support , wherein substantially all of the Raney alloy particles are partially embedded into the organic polymer material support.2. The catalyst of claim 1 , wherein the Raney alloy comprises at least one Raney metal and at least one leachable element.3. The catalyst of claim 2 , wherein the at least one Raney metal is chosen from nickel claim 2 , cobalt claim 2 , copper claim 2 , and iron claim 2 , and the at least one leachable element is chosen from aluminum claim 2 , zinc claim 2 , and silicon.4. The catalyst of claim 2 , wherein the weight ratio of the Raney metal to the leachable element in the Raney alloy is from 1:99 to 10:1.5. The catalyst of claim 4 , wherein the weight ratio of the Raney metal to the leachable element in the Raney alloy is from 1:10 to 4:1.6. The catalyst of claim 2 , wherein the Raney alloy further comprises at least one promoter chosen from Mo claim 2 , Cr claim 2 , Ti claim 2 , and Ru in an amount of from 0.01 wt. % to 5 wt. % claim 2 , based on the total weight of the Raney alloy.7. The catalyst of any one of to claim 2 , wherein the organic polymer material is a plastic or a modified plastic.8. The catalyst of any one of to claim 2 , wherein the organic polymer material is chosen from polyolefins claim 2 , polyamides claim 2 , polystyrenes claim 2 , epoxy resins claim 2 , phenolic resins claim 2 , and mixtures and blends thereof.9. The catalyst of any one of to claim 2 , wherein ...

supported catalyst, process for preparing catalyst, activated supported catalyst, process for preparing activated supported catalyst, and use of catalyst

catalisador suportado, processo para preparar o catalisador, catalisador suportado ativado, processo para preparar o catalisador suportado ativado e uso do catalisador um catalisador suportado e método de preparação do mesmo, o catalisador compreendendo um veículo de material polimérico orgânico e partículas de liga raney suportadas sobre o veículo de material polimérico orgânico, sendo que substancialmente todas as partículas de liga raney são parcialmente embebidas no veículo de material polimérico orgânico. o catalisador pode ser utilizado em reações de hidrogenação, de desidrogenação, aminação, deshalogenação ou reações de dessulfuração.

Catalisador suportado, processo para preparar o catalisador,catalisador suportado ativado, processo para preparar o catalisador suportado ativado e uso do catalisador

CATALISADOR SUPORTADO, PROCESSO PARA PREPARAR O CATALISADOR, CATALISADOR SUPORTADO ATIVADO, PROCESSO PARA PREPARAR O CATALISADOR SUPORTADO ATIVADO E USO DO CATALISADOR. Um catalisador suportado e método de preparação do mesmo, o catalisador compreendendo um veículo de material polimérico orgânico e partículas de liga Raney suportadas sobre o veículo de material polimérico orgânico, sendo que substancialmente todas as partículas de liga Raney são parcialmente embebidas no veículo de material polim érico orgânico. O catalisador pode ser utilizado em reações de hidrogenação, de desidrogenação, aminação, deshalog enação ou reações de dessulfuração.

Maleic anhydride hydrogenation method and succinic acid production method comprising same

The present invention relates to a process for producing succinic anhydride by maleic anhydride hydrogenation, comprising (1) feeding a maleic anhydride solution and a hydrogen raw material respectively to a first-stage hydrogenation reactor from an upper liquid-phase feed port and a top gas-phase feed port of the first-stage hydrogenation reactor for a first-stage hydrogenation reaction to obtain a first-stage hydrogenation product; (2) feeding the first-stage hydrogenation product to a second-stage hydrogenation reactor for a second-stage hydrogenation reaction to obtain a second-stage hydrogenation product, optionally, before entering the second-stage hydrogenation reactor, subjecting the first-stage hydrogenation product to a first-stage gas-liquid separation to obtain a first-stage gas phase and a first-stage liquid phase, and then feeding the first-stage gas phase and the first-stage liquid phase respectively from a top gas-phase feed port and an upper liquid-phase feed port of the second-stage hydrogenation reactor; and (3) subjecting the second-stage hydrogenation product to a second-stage gas-liquid separation to obtain a second-stage gas phase and a second-stage liquid phase, returning a part of the second-stage liquid phase to step (1) to be mixed with the maleic anhydride solution for the first-stage hydrogenation reaction, and optionally, using part or all of the second-stage gas phase as a circulating hydrogen. The present invention also relates to a process for producing succinic acid comprising such process, a liquid-phase hydrogenation reaction system, and a system for producing succinic acid comprising such system.