738 results about "Metal catalyst" patented technology

The invention discloses a method for preparing a carbon monoxide oxidation catalyst by using a waste vanadium-titanium catalyst and electroplating sludge, which realizes the mutual reaction of metal components in the electroplating sludge and components in the waste vanadium-titanium catalyst through the synergistic effect of various physical and chemical treatment methods and additives in the whole preparation process. The complex multi-metal catalyst can be used for photo-catalytic oxidation of carbon monoxide, has a remarkable oxidation effect and has a good application prospect.

The invention discloses a preparation method for selectively oxidizing thioether into sulfoxide through photo-initiation, and belongs to the field of synthesis of medical compounds. The preparation method comprises the following steps that in the air atmosphere, a thioether compound is dissolved in an acetonitrile-water mixed solvent, inorganic metal salt catalysts such as ferric chloride and copper sulfate are added, the mixture reacts for 8-48 h at the temperature of 0-45 DEG C under illumination with the wavelength of 295-405 nm, selective oxidation is carried out, and the sulfoxide product is obtained, and the molar ratio of thioether to the catalysts is 5: 1. The method overcomes the problems of excessive oxidation risk, complicated operation, environmental pollution and the like caused by dependence of a noble metal catalyst and use of a strong oxidant in the existing thioether oxidation method, has the advantages of high catalytic efficiency, high yield and excellent selectivity, can greatly reduce the production cost, is suitable for later industrial synthesis and amplification, and has wide application prospects. The method has the advantages of no expensive metal catalyst or oxidant, simple preparation process, high efficiency, environmental protection, safety and cost saving.

A high thermal conductive silicone composition including: (A) an organopolysiloxane having at least two aliphatic unsaturated hydrocarbon groups in one molecule and a kinematic viscosity at 25 C of 100 to 100,000 mm2 / s; (B) an aluminum powder having an average particle size of 50 μm or more; (C) a thermal conductive filler having an average particle size of 0.1 to less than 50 μm; (D) an organohydrogenpolysiloxane having two or more hydrogen atoms bonded to a silicon atom (Si—H groups) in one molecule; (E) a hydrolyzable organopolysiloxane represented by the following general formula (1); and (F) a platinum group metal catalyst having an effective amount. The high thermal conductive silicone composition can conform to the warpage of a substrate due to an increased material thickness and can maintain heat dissipation performance due to a high thermal conductivity.

The invention discloses a dechlorination regeneration method of a chlorine poisoning noble metal catalyst and an application of the regenerated noble metal catalyst in polyolefin hydrogenolysis, and the dechlorination regeneration method comprises the following steps: dispersing the chlorine poisoning noble metal catalyst in water, adding a strong nucleophilic reagent for treatment, and carrying out centrifugal separation, washing and drying treatment to obtain the chlorine poisoning noble metal catalyst. The regenerated noble metal catalyst is obtained. A strong nucleophilic reagent dechlorination regeneration strategy under a room temperature mild condition is provided, chemically inert metal-chlorine bonds are broken through a nucleophilic substitution effect, noble metal particles are prevented from being agglomerated and sintered while deep dechlorination is realized, polyolefin hydrogenolysis activity of the catalyst can be completely recovered, activity improvement can be realized, and the catalyst has a good application prospect. Meanwhile, the regeneration cost is greatly reduced, and the regenerated noble metal catalyst can be used for efficiently hydrogenolyzing, upgrading and recycling waste polyolefin to obtain liquid alkane fuel with high additional value.

The invention relates to an aliphatic copolyester elastomer and a preparation method thereof, and belongs to the field of high polymer materials. The elastomer is prepared through a series ring-opening copolymerization reaction of epoxide and cyclic anhydride, and the method comprises the following steps: under the action of a metal-free catalyst (a phosphazene ligand P1-tert-octyl / triethyl boron system) and an initiator (terephthalyl alcohol), carrying out a series ring-opening copolymerization reaction on epoxide and cyclic anhydride, the preparation method comprises the following steps: reacting epoxide (such as epoxypropane and allyl glycidyl ether) with aliphatic anhydride (such as glutaric anhydride) in a xylene solvent to generate a polyester prepolymer retaining an active end; adding a second group of epoxide (such as cyclohexene oxide) and anhydride (such as tetrahydrophthalic anhydride and norbornene dianhydride), continuously reacting to form a block copolymer, and then crosslinking. The material performance can be regulated by changing the monomer combination, the atom economy is high, and the raw materials can be produced on a large scale. The process is simple and environment-friendly, and a new choice is provided for application of the degradable elastomer in the fields of medical treatment, environmental protection and the like.

A method for decomposing ammonia (NH3) to hydrogen (H2) and nitrogen (N2) includes contacting a H2-containing feed gas stream with a carbon material supported metal (M-C) catalyst at a temperature of about 500° C. to form a reduced M-C catalyst; contacting an NH3-containing feed gas stream with the reduced M-C catalyst at a temperature of about 200 to about 600° C. thereby converting at least a portion of the NH3 to H2 and N2, and regenerating the M-C catalyst to form a regenerated M-C catalyst, and producing a residue gas stream leaving the reactor; and separating the H2 from the residue gas stream to generate a H2-containing product gas stream. The regenerated M-C catalyst is substantially free of agglomerated particles and sintered particles.

The invention provides a nitrogen modified iron-cobalt bimetallic catalyst as well as a preparation method and application thereof, and belongs to the technical field of catalysts. The catalyst takes iron and cobalt as active components, and is prepared by adopting a coprecipitation-hydrothermal-step atmosphere heat treatment process: firstly, carrying out coprecipitation reaction on iron salt and cobalt salt, controlling the pH value to be 11 + / -0.5, carrying out aging and hydrothermal treatment, filtering, washing, drying and grinding to obtain a precursor; and calcining the precursor in a hydrogen-containing mixed atmosphere at 400-500 DEG C, and then calcining the precursor in an ammonia-containing mixed atmosphere at 450-600 DEG C to obtain the nitrogen surface modified iron-cobalt bimetallic catalyst. The catalyst is of a carrier-free iron-cobalt bimetallic structure, nitrogen atoms are embedded into alloy lattices or adsorbed on the surface in the form of pyridine nitrogen, pyrrole nitrogen or graphite nitrogen, and a Fe / Co-N high-activity interface is formed.

The invention belongs to the technical field of catalyst preparation, and discloses an activated carbon supported metal catalyst based on ammonia-assisted microwave reaming as well as a preparation method and application of the activated carbon supported metal catalyst. According to the activated carbon supported metal catalyst prepared through an ammonia water complexing route, metal ions can be more uniformly dispersed on an activated carbon carrier, the average size of particles is smaller, the dispersity of metal particles on the surface is high, and the catalyst has good catalytic activity. The metal precursor is dissolved in ammonia water, so that the defect of poor water solubility of partial metal is overcome, and the universality of catalyst preparation is expanded. Microwave heating is adopted for roasting and reduction, so that the catalyst preparation time is greatly shortened, and the energy consumption is reduced. In addition, the ammonia-assisted impregnation process is combined, the content of mesopores and macropores in the activated carbon metal catalyst is obviously increased, and a good pore expanding effect is achieved. The activated carbon supported metal catalyst shows better activity, selectivity and stability in high-carbon ketone synthesis reaction.

The invention relates to the technical field of catalysts, in particular to a composite catalyst for nitrous oxide decomposition and a preparation method thereof.The composite catalyst is of a three-dimensional flower-shaped structure and comprises a composite carrier and active metal loaded on the composite carrier; the composite carrier is composed of a modification additive and a carrier oxide; the performance additive is composed of alkali metal oxide and rare earth metal oxide; the carrier oxide is selected from one of aluminum oxide, titanium dioxide and silicon dioxide; the active metal comprises cobalt oxide and vanadium oxide. The multi-metal catalyst has the advantages that the multi-metal catalyst with a three-dimensional flower-shaped structure is formed by loading cobalt and vanadium active metals on aluminum oxide and under the synergistic effect of alkali metal and rare earth metal, so that the stability and durability of the catalyst in a high-temperature environment are remarkably improved.

The invention discloses a copper-cobalt bimetallic catalyst and a preparation method and application thereof. The preparation method comprises the following steps: mixing ZIF-67, a copper source and a solvent, adjusting the pH value to 7.0, stirring, standing, centrifuging, washing and drying to obtain ZIF-67 adsorbed with copper ions, and calcining to obtain the copper-cobalt bimetallic catalyst. Compared with a conventional cobalt-based bimetallic catalyst, the copper-cobalt bimetallic catalyst prepared by the invention has the advantages of large specific surface area, multiple catalytic active sites, high catalytic activity, good structural stability and the like, is a novel catalyst with a novel structure and excellent performance, can efficiently activate peracetic acid and is used for degrading antibiotics; the method can realize deep oxidative degradation of various antibiotics in different water bodies, has the advantages of high reaction system activation rate, high degradation efficiency, wide pH application range, good reusability, low metal leaching amount, no secondary pollution and the like, and is high in use value and good in application prospect.

The invention discloses an alkaline electrode based on a nickel-based intermetallic compound as well as a preparation method and application of the alkaline electrode. The alkaline electrode comprises a composite diaphragm, a cathode and an anode, the surface of the composite diaphragm is zirconium oxide; the cathode is formed by mixing an MNi5 metal catalyst and ZrO2 in a gradient manner and then spraying the mixture on one side of the composite diaphragm, and M is Hf or Zr; and the anode is formed by mixing Ni-Fe oxide and ZrO2 in a gradient manner and then spraying the mixture on the other side of the composite diaphragm. The cathode of the alkaline electrode adopts an MNi5 metal catalyst, the cathode and anode catalysts are mixed with ZrO2 in a gradient manner and then sprayed on the two sides of the composite diaphragm to construct an integrated'electrode-diaphragm 'complex, and the catalytic activity and the electrolytic efficiency of the electrode are improved through improvement of a cathode catalytic material and an electrode structure.

The invention relates to the technical field of synthesis of organic compounds, and discloses a synthesis method of an o-aminoanisole compound, which comprises the following steps: preparing a composite alkali slow-release system consisting of inorganic alkali and organic alkali; preparing a catalytic reduction reaction system containing a metal complex stabilizer, a transition metal catalyst and a hydrophilic ether cosolvent; a catalytic reduction reaction of o-nitroanisole is carried out, and the slow-release alkali-coated material gradually releases the composite alkali to maintain a stable pH environment; after the reaction is completed, adding a packing material rapid digesting agent to remove a packing material structure, and meanwhile, rapidly separating and protecting a product by using a product protective extracting agent and an antioxidant synergistic protective agent; and purifying and recovering the final product to obtain a high-purity o-aminoanisole product. The reaction efficiency, the product purity, the service life of the catalyst and the separation efficiency are comprehensively improved through the synergistic effect of the eight components, the product purity reaches 99.5% or above, the catalyst can be recycled for 5-8 batches, and the separation time is shortened to 0.5-1 hour.

The invention belongs to the field of photovoltaic technology, and provides a photovoltaic packaging adhesive film, a preparation method and application thereof, and a recovery method of a photovoltaic module. The photovoltaic packaging adhesive film comprises the following raw materials in specific amounts: matrix resin, a low-temperature cross-linking agent, a low-temperature catalyst, a silane coupling agent, an ultraviolet light stabilizer, an organic peroxide initiator, an assistant cross-linking agent and an alcohol compound serving as a reversible dynamic transesterification reaction group, the matrix resin is EVA (ethylene vinyl acetate), POE (polyolefin elastomer) and / or ethylene-butylene copolymer; the low-temperature cross-linking agent is a carboxylic ester type cross-linking agent, a bisoxazoline type cross-linking agent and / or a metal-organic ligand cross-linking agent with the reaction temperature of 150 DEG C or below; the low-temperature catalyst is a polynuclear metal catalyst, a solid acid resin catalyst, a solid base catalyst and / or a bimetallic MOF derivative catalyst with the reaction temperature of 150 DEG C or below. The adhesive film can realize recycling of the adhesive film and a photovoltaic module in a more efficient and energy-saving manner, is wide in adaptability, and has high crosslinking degree, peel strength and PID resistance.

The invention relates to the field of organic chemical synthesis, in particular to a quinazolinone compound synthesized by carbon dioxide and a preparation method of the quinazolinone compound. According to the preparation method for synthesizing the quinazolinone compound from carbon dioxide, carbon dioxide, a 2-aminobenzamide compound and aryl halide are taken as raw materials, and are subjected to a heating reaction in the presence of a palladium metal catalyst, a ligand, a reducing agent, alkali and an organic solvent to generate the quinazolinone compound. The mechanism is as follows: carbon dioxide forms an intermediate A under the conditions of alkali and a reducing agent, aryl halide and the intermediate A form a carbonyl metal compound B under the action of a palladium metal catalyst, and then the carbonyl metal compound B reacts with a 2-aminobenzamide compound under the action of the alkali and the reducing agent to obtain the quinazolinone compound. The catalyst system has universality to various types of 2-aminobenzamide and derivatives and aryl halides thereof, the raw materials are wide in source, cheap and easy to obtain, and the reaction process is simple and controllable.

The invention provides a method for catalyzing hydrogen-deuterium replacement of heterocyclic aromatic hydrocarbon by using a binary cheap metal, and belongs to the technical field of organic synthesis.The method comprises the steps that a heterocyclic aromatic hydrocarbon compound serves as a raw material, heavy water and a binary cheap metal catalyst are added under the condition that a solvent is added or not added, under inert gas protection, heating is conducted for hydrogen-deuterium replacement reaction, and after the reaction is finished, a product is obtained; and separating and purifying the product to obtain the heterocyclic aromatic hydrocarbon deuterated compound. The preparation method provided by the invention adopts cheap heavy water as a deuterium source and cheap double-element metal as a catalyst, so that the cost is low, the operability is high, the applicability is wide, and the deuteration rate is high; a cheap and efficient heterocyclic aromatic hydrocarbon deuteration technology is realized, and the limitation of the existing heterocyclic aromatic hydrocarbon deuteration technology is solved.

The application discloses a phosphine ligand modified nitrogen-doped graphene oxide / porous carbon supported metal catalyst and a preparation method and application thereof. The catalyst comprises phosphine ligand modified nitrogen-doped graphene oxide / porous carbon and rhodium supported on the nitrogen-doped graphene oxide / porous carbon; and the molar ratio of rhodium to phosphine is 1:1-100 in terms of elements. The phosphine ligand modified nitrogen-doped graphene oxide / porous carbon supported metal catalyst has better catalytic activity and product selectivity.

The application provides a kind of sodium sulfide nine hydrate and activated olefin / acetylene preparation polyether and its method, belong to sulfur-containing polymer technical field.The structural formula of polyether in the application, R 1 And R 2 Independently be substituted or unsubstituted alkyl, substituted or unsubstituted alkoxy, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl;The number of carbon atoms of the alkyl is 1-10, the number of carbon atoms of alkoxy is 1-10, the number of carbon atoms of aryl is 1-30, the number of carbon atoms of heteroaryl is 3-30;Substituted alkyl and substituted alkoxy independently are one or more;N is an integer of 2-4000.The application is used as sulfur source sodium sulfide nine hydrate, under the condition of no metal catalyst, polyether is synthesized by polymerization reaction;Reaction condition is mild, reaction is efficient, economic and environmental protection, meet the current green production concept and can avoid the use of dangerous reagent.

The invention provides a method for preparing 3, 4-diaminobenzoic acid methyl ester, which comprises the following steps: preparing 3, 4-diaminobenzoic acid from 3, 4-dichlorobenzoic acid by using a metal catalyst and a ligand catalyst; and preparing methyl 3, 4-diaminobenzoate by using the 3, 4-diaminobenzoic acid. The method provided by the invention has the advantages of easily available raw materials, simple process route, no dangerous reaction, no use of expensive heavy metal catalysts, yield and product purity which are equivalent to or superior to those in the prior art, and easiness in large-scale production.

The application discloses a nitrogen-doped carbon-coated three-metal catalyst and a preparation method and application thereof, and belongs to the field of catalyst preparation and application. The method adopts sucrose, melamine and metal salt as low-cost raw materials, and forms an alkaline environment with the assistance of sodium hydroxide. In the environment, melamine is hydrolyzed into cyanuric acid, which is complexed with sucrose metal ions to form a stable supramolecular aggregate precursor containing metal, and then realizes effective encapsulation of the metal in a high-temperature pyrolysis process. The synergistic effect of the three metal elements Co, Ni and Zn significantly improves the performance of the catalyst, so that CoNiZnO@NC-600 not only exhibits high conversion rate (98.4%) and selectivity (99%) in the reaction of hydrogenation conversion of furfural to furfuryl alcohol, but also has excellent cycle stability, thereby providing a new efficient method for the hydrogenation conversion of biomass-derived compounds.

The application discloses a copper-bismuth bimetallic catalyst and a preparation method and application thereof. The copper-bismuth bimetallic catalyst comprises a copper substrate and copper-bismuth nanowires grown on the copper substrate, the copper-bismuth nanowires comprise copper nanowires and a metal bismuth layer loaded on the copper nanowires, and the mass fraction of bismuth in the copper-bismuth nanowires is 40% to 60%. The preparation method of the catalyst comprises the following steps: after in-situ growth of copper hydroxide nanowires on the copper substrate, the copper-bismuth bimetallic catalyst is prepared through heat treatment, electrochemical reduction treatment and bismuth deposition. Meanwhile, the copper-bismuth bimetallic catalyst can not only make full use of the copper and bismuth bimetallic effect, effectively improve the activity, stability and selectivity of electrocatalytic reduction of carbon dioxide, but also has the advantages of simple and controllable preparation, wide application potential window and wide application environment.

The invention discloses a cerium oxide carrier loaded ruthenium-gadolinium bimetallic heterogeneous catalyst and a preparation method and application thereof, the heterogeneous catalyst takes a cerium oxide nanorod as a carrier, and metal ruthenium and metal gadolinium are loaded on the carrier; wherein the loading capacity of the metal ruthenium and the loading capacity of the metal gadolinium are independently larger than 0 and smaller than or equal to 10 wt%. The cerium oxide loaded ruthenium-gadolinium bimetallic catalyst provided by the invention can improve the catalytic activity and selectivity of ester prepared by an olefin esterification one-step method, ester compounds can be synthesized at a relatively high yield, and the ester selectivity of 99% or more is obtained. Besides, the cerium-loaded ruthenium-gadolinium heterogeneous catalyst prepared by the method is easy to separate from reactants and products and can be repeatedly used, and a new technology suitable for industrialization is provided for ester preparation through esterification of olefin compounds under efficient and selective mild conditions.

The application relates to the technical field of batteries, in particular to a hard carbon negative electrode material and a preparation method and application thereof. A preparation method of a negative electrode hard carbon material comprises the following steps: carrying out first heat treatment on a mixture of an organic metal catalyst and biomass activated carbon, introducing a gas-phase carbon source and carrying out second heat treatment to obtain first material, and carrying out carbonization treatment and acid pickling treatment on the first material. The method can improve the capacity and initial efficiency of the hard carbon negative electrode material through cooperation of various steps; the method is simple in process and easy to realize large-scale production.

The application discloses a composite metal catalyst for catalytic degradation of VOCs at low temperature and a preparation method thereof, and belongs to the field of environmental protection catalysis technology. The composite metal catalyst comprises the following components in percentage by weight: 5-25% of a multi-component composite metal oxide, 65-90% of modified mesoporous zeolite, 2-6% of a composite additive, and 1-3% of a high-temperature-resistant binder. The multi-component composite metal oxide is a copper / manganese / cerium / zirconium quaternary composite oxide, and the molar ratio of copper, manganese, cerium and zirconium is 1:(0.8-1.2):(0.5-0.8):(0.2-0.5). The modified mesoporous zeolite is ZSM-5 mesoporous zeolite which is modified by rare earth ions and an amphoteric surfactant. The application adopts the copper / manganese / cerium / zirconium quaternary composite metal oxide as an active component, the introduction of cerium and zirconium forms a solid solution structure, greatly improves the oxygen storage capacity and the redox performance of the active component, and the synergistic effect of copper and manganese and cerium and zirconium significantly reduces the oxidation and decomposition temperature of VOCs.

The invention discloses a hydrogenation catalyst as well as a preparation method and application thereof. The hydrogenation catalyst comprises a carrier and active metal, the carrier is an aluminum oxide core wrapped by a carbon shell, the active metal is Mo and Ni, and on the basis of the weight of the catalyst, the content of MoO3 is 7.5 wt%-15.5 wt%, the content of NiO is 1.5 wt%-4.5 wt%, the content of carbon is 20 wt%-45 wt%, and the content of aluminum oxide is 35 wt%-70 wt%; and the ratio delta 1 of the content of the active metal in the shell layer to the content of the active metal in the core layer is 0.25: 1-0.75: 1. The preparation method comprises the following steps: (1) preparing active metal modified flour; (2) preparing active metal modified pseudo-boehmite microspheres; and (3) rolling the active metal modified flour and the active metal modified pseudo-boehmite microspheres for molding, then carrying out heat treatment, drying and roasting to obtain the hydrogenation catalyst. The catalyst disclosed by the invention has relatively high metal impurity capacity and relatively high Ca, Fe, Ni and V removal capacity, and is suitable for being used as a hydrogenation protection catalyst and a hydrodemetallization catalyst in a residual oil hydrogenation process.

This invention discloses a chiral [oxyindole-pyrrolidine-β-lactam] bispirocyclic compound containing trifluoromethyl groups, with the following structural formula: The preparation includes the following steps: 1. Sequentially adding a metal catalyst, a chiral ligand, a base, indigo-derived trifluoromethylimine ylide, and 3-methylene β-lactam, followed by the addition of an organic solvent to obtain a mixture. The mixture is stirred at a reaction temperature of 0℃ to 50℃. 2. After the reaction is complete, the chiral [oxyindole-pyrrolidine-β-lactam] bispirocyclic compound containing trifluoromethyl groups is obtained through post-processing. The chiral [oxyindole-pyrrolidine-β-lactam] bispirocyclic compound containing trifluoromethyl groups prepared in this application lays a material foundation for in-depth drug activity research based on new drug development.

The invention provides a copper-based composite catalyst and a preparation method and application thereof, and belongs to the technical field of metal catalyst preparation. According to the invention, the Cu / Cu2O / CuO nano-catalyst with abundant and tightly coupled Cu0 / Cu + interfaces is synthesized by using a simple wet chemical method. A heterogeneous interface of the catalyst has strong interface binding energy, agglomeration of Cu0 particles can be inhibited, Cu < + > can also be inhibited from being excessively reduced into Cu0, and dynamic oxidation-reduction balance is formed, in the reaction, the reduced Cu < + > can be re-oxidized into Cu < + > by dissolved oxygen CO2 in an electrolyte, the oxidized Cu0 can be re-reduced into Cu0 by electrons of an external circuit, the stability of the Cu0 / Cu < + > ratio at the interface is maintained, and the stability of the Cu0 / Cu < + > ratio at the interface is improved. Therefore, long-period stable operation of the catalyst is realized.

The invention relates to the technical field of preparation of integral foam metal catalysts, in particular to a lattice distortion induced catalyst for catalytic oxidation of acetone and a preparation method thereof, and the preparation method comprises the following steps: step 1, selecting and cutting raw materials; step two, acid pretreatment and cleaning; 3, preparing a solution; step 4, hydro-thermal synthesis; 5, washing and drying the catalyst; and 6, performing electrothermal induction on the catalyst. The lattice distortion induced monolithic catalyst for electrothermal concerted catalytic oxidation of acetone is prepared in a hydrothermal synthesis manner, active component loading and electronic structure regulation are synchronously realized, energy consumption is remarkably reduced in catalytic oxidation of acetone, the problems of catalyst sintering and active center inactivation are relieved, and the method is suitable for industrial production. And the activity at low temperature is improved.

The application discloses a kind of carbonaceous material with coating and its preparation method, material is made by following method: (1) form microstructure groove on the surface of matrix, and prepare metal catalyst layer;(2) using silicon-containing slurry is impregnated to matrix;(3) carbonaceous material matrix is heated to grow and form silicon carbide nanowire connecting layer, obtain intermediate product A;(4) on intermediate product A deposition form silicon carbide nanowire reinforced silicon carbide layer, obtain intermediate product B;(5) on intermediate product B deposition preparation silicon carbide-zirconium carbide composite layer, post-processing obtains intermediate product C;(6) on intermediate product C deposition preparation zirconium carbide layer.The application avoids the problem of single coating in prior art, ensures the transition and bonding strength between coating and matrix, promotes coating and matrix to present three-dimensional interpenetration mechanical cooperation structure, effectively improves the interface bonding strength of coating and matrix by mechanical connection and interface constraint.

An eggshell catalyst support has a porous support structure that is impregnated with an active metal catalyst. The metal catalyst is heterogeneously distributed so that the catalyst is concentrated at or near the exterior surface of the porous support structure. The catalyst may be concentrated by impregnating the support structure using a molten metal catalyst to contact bulk catalyst supports. A relatively smaller volume of molten catalyst relative to the pore volume of the support may be utilized to concentrate the catalyst in a band near the exterior surface of the supports. The viscosity of the molten metal catalyst may be adjusted to control the depth of the metal catalyst within the porous supports.

The present application provides a kind of porous carbon and carbon nanotube combined preparation system and method, including activation fluidized bed, carbonization fluidized bed and carbon nanotube preparation fluidized bed;Activation fluidized bed is filled with energy carbon carrier, after oxygen and activating gas are imported, energy carbon carrier and oxygen occur combustion heat release, make activation fluidized bed temperature rise, first tail gas formed is imported into carbonization fluidized bed filled with carbon particle precursor, carbon particle precursor is carbonized under the action of high temperature carried by first tail gas, and generates carbide particle, and the second tail gas containing C1-C 30 ;Carbide particle is transported to activation fluidized bed, by controlling the gas flow rate of first gas inlet, so that carbide particle is always in the upper part of activation fluidized bed, and makes carbide particle activate in activating gas, and forms porous carbon particle;Second tail gas enters carbon nanotube preparation fluidized bed, and under the action of nanometer metal catalyst, C1-C 30 In it, is converted into carbon nanotube to realize low-cost co-production of porous carbon and carbon nanotube.