267 results about "Catalytic reforming" patented technology

The invention relates to a methanol internal combustion engine high-temperature fuel cell hybrid power system based on double-path waste heat gradient utilization. The invention relates to the technical field of internal combustion engine waste heat recovery and new energy power system integration. The system comprises a fuel tank, a first pump body, a heat exchanger, a methanol internal combustion engine, a turbine, a gas compressor, an air compressor, a reformer, a high-temperature proton exchange membrane fuel cell, an evaporator and a second pump body. A methanol-water vapor mixture generated by heat exchange of a mixed solution of methanol and water and a high-temperature fuel cell stack coolant in a heat exchanger is introduced into a reforming reactor and is subjected to catalytic reforming to produce hydrogen by utilizing waste heat of high-temperature tail gas of an engine, and the produced hydrogen is directly supplied to an anode of a high-temperature fuel cell. Through a double-path methanol distribution strategy, collaborative design of internal combustion engine waste heat recovery, electric pile heat management and reforming hydrogen production is realized, and the comprehensive energy efficiency of the system is improved.

The invention relates to the field of reforming catalyst preparation, and discloses a supported reforming catalyst, preparation and application thereof, and a catalytic reforming method. The invention relates to a supported reforming catalyst. The catalyst comprises an alumina carrier containing rare earth metal and IVA group metal, and an active component supported on the alumina carrier, the active component comprises a platinum group metal; wherein in the alumina carrier, pores with the pore diameter of 6-10 nm account for 10-22% of the total pore volume, pores with the pore diameter of 10-20 nm account for 50-75% of the total pore volume, and pores with the pore diameter of 20-50 nm account for 10-25% of the total pore volume. The supported reforming catalyst provided by the invention has excellent catalytic performance, is applied to the field of hydrocarbon catalytic reforming, and has relatively high reaction activity and product selectivity.

The utility model relates to the technical field of hydrogen preparation devices, and specifically to an integrated methanol catalytic reforming reaction device, comprising a shell, wherein a reaction chamber is arranged on the upper part of the shell, a combustion chamber is arranged on the lower part, a circulation pipeline for circulating a heating medium is arranged between the reaction chamber and the combustion chamber; a heating tube array for providing heat to the heating medium is arranged in the combustion chamber, a fuel delivery module connected to a feed end of the heating tube array is arranged on the outside of the shell, the overall structure is compact, and no open flame heating is required during use, thereby improving production safety.

Disclosed in the present invention is an integrated reforming power generation test system having wide-range fuel adaptability, comprising a fuel supply subsystem, a catalytic reforming subsystem, a hydrogen purification subsystem, a power generation subsystem, and a test monitoring subsystem. A fuel pump and a fuel delivery pump are connected to a water-gas shift reactor by means of an evaporator and a reformer, the water-gas shift reactor is connected to a pressure swing adsorption device by means of a first gas-liquid separator, the pressure swing adsorption device is connected to a fuel cell stack by means of a hydrogen buffer tank, and a gas chromatograph is connected to the reformer by means of a third gas-liquid separator and to the water-gas shift reactor by means of a second gas-liquid separator. By using a variety of fuel resources to produce electricity, the present invention breaks through the limitation of the scope of traditional single-fuel reforming power generation systems, ensures the reliability of electricity supply, gets rid of the dependence on specific fuels, enhances regional energy safety, and improves the flexibility of energy supply.

The invention relates to the technical field of vehicles, in particular to a hybrid power system, a vehicle and a control method.The system comprises an ammonia engine and a fuel cell; the storage and conversion assembly is used for gasifying the stored liquid ammonia into first-path gaseous ammonia and second-path gaseous ammonia; the ammonia catalytic reforming device is used for catalytically reforming the second gaseous ammonia into a first path of hydrogen and a second path of hydrogen, the first path of gaseous ammonia and the first path of hydrogen are fed into an ammonia engine, and the ammonia engine utilizes mixed gas of the first path of gaseous ammonia and the first path of hydrogen for combustion; the hydrogen purification device is used for purifying the second path of hydrogen to obtain a third path of hydrogen, the third path of hydrogen is fed into the fuel cell, and the fuel cell utilizes the third path of hydrogen for combustion. Therefore, the problems that the ammonia engine and the hydrogen-oxygen fuel cell are difficult to be directly integrated together to be applied to the hybrid power system, the energy utilization efficiency is not high when the ammonia engine and the hydrogen-oxygen fuel cell are cooperatively applied to the same hybrid power system, and the working point of the engine cannot be effectively controlled in the prior art are solved.

The invention provides a silicate nanotube photo-thermal composite catalyst with CeO2-ZrO2 compositely coated with Ni as well as a preparation method and application of the silicate nanotube photo-thermal composite catalyst, and belongs to the technical field of energy materials. The catalyst takes a layered silicate nanotube as a carrier, is loaded with an active component Ni, and is coated with a CeO2-ZrO2 composite shell layer. The preparation method comprises the steps that firstly, a Ni-PSNTs precursor is synthesized through microwave hydrothermal synthesis, then Ce-Zr hydroxide is deposited in an ethanol solvent, ZrO2 / CeO2 layers are stacked alternately through an atomic layer deposition method, H2 / N2 pulse reduction is conducted after calcination, and the target catalyst is obtained. The methane conversion efficiency and stability are obviously improved. The problems that a traditional catalyst is low in activity, poor in carbon deposition resistance and low in photo-thermal efficiency are solved, and the catalyst is suitable for the fields of efficient conversion of fossil energy and the like.

The invention relates to the technical field of fuel cells, and particularly provides a catalytic reforming hydrogen production fuel cell system for methane separation by a hydrate method. The cell system comprises a methane hydrate reaction module, a methane catalytic reforming module, a fuel cell module and a tail gas collection module. In the coal mining process, due to limitation of technical reasons, most low-concentration coal mine gas can be directly emptied, so that resource waste and environment damage are caused; in recent years, a hydrate technology is widely concerned to be used for separating and storing gas, and the method is relatively safe and can effectively reduce the risk of gas explosion. According to the invention, the low-concentration gas is separated and purified according to the temperature and pressure difference under the condition that different components in the low-concentration gas form hydrates, high-concentration CH4 is used as fuel and enters the fuel cell module, chemical energy is converted into electric energy, and the electric energy is provided for coal mine production and living places; the utilization scene of the low-concentration gas is expanded; and the utilization efficiency of the low-concentration gas is improved.

The invention relates to a multi-model-based petrochemical production stream molecular-level composition prediction method and system, and relates to the technical field of oil refining chemical molecule management, and the method comprises the steps: measuring the molecular composition of a raw material, splicing structural units based on a structural unit-bond electric matrix frame, and constructing a molecular digital structure topology; constructing a molecular composition model by combining a preset molecular database, a probability density function and a molecular property predictor; establishing a molecular-level reaction network based on a catalytic reforming reaction mechanism, and constructing a molecular-level reaction kinetic model in combination with a reaction rate expression; constructing a reactor model according to mass, energy and momentum transfer equations; inactivation and separation unit models are constructed, multiple models are coupled in sequence, a whole-process reaction-separation molecular level prediction model is generated, and any stream molecular level composition is predicted. The method solves the problem that traditional petrochemical production depends on measurement results to adjust process parameters and has operation lag, and can eliminate lag and improve production control precision by predicting stream molecular composition.

The invention discloses a process method for microwave multi-stage catalytic reforming. A microwave reaction device provided with a microwave generator, an automatic protection unit, a PLC (Programmable Logic Controller) control unit, a carrier gas adjusting unit and a multi-stage series reaction unit is adopted to realize a microwave pyrolysis process; the process method comprises the following steps: under the action of microwaves and a microwave absorbent, pyrolyzing a reaction material into raw material steam on a reaction material layer, and sequentially conveying the raw material steam to each catalyst bed layer under the pushing of carrier gas input by a carrier gas adjusting unit, and further pyrolyzing the raw material steam into an oil product component and / or a gas fuel component by using microwaves, a catalyst and a microwave absorbent to realize catalytic reforming of the reaction material.

The invention discloses a bio-oil enhanced hydrodenitrogenation method, which comprises the following steps: adding bio-oil, a catalyst, formic acid and deionized water into a reaction kettle, uniformly stirring to obtain a mixed solution, continuously stirring for reaction, and after the reaction is finished, carrying out suction filtration and distillation to obtain reformed bio-oil. The preparation method of the catalyst comprises the following steps: mixing corn straw and ammonium molybdate, adding deionized water after mixing, stirring and dipping, and then carrying out vacuum drying and calcining to obtain the catalyst. In the catalytic reforming process, formic acid is innovatively introduced to serve as a hydrogen source, the gas-liquid interface transmission resistance of a traditional gaseous hydrogen source is eliminated through the homogeneous hydrogen supply characteristic of liquid formic acid, the flammable and explosive risk of high-pressure hydrogen is avoided, the process safety is improved, meanwhile, formic acid is subjected to in-situ decomposition on the surface of the catalyst to generate active hydrogen species, and the catalytic reforming efficiency is improved. And a synergistic catalysis mechanism is formed with a platinum-like active site of the catalyst, so that the kinetic advantage of the hydrodenitrification reaction is enhanced, and an efficient, safe and environment-friendly bio-oil hydrodenitrification process system is constructed.

The invention discloses an oil-containing solid waste and plastic co-pyrolysis method based on carbon residue in-situ catalysis, and belongs to the technical field of solid waste resource utilization. The method comprises the following steps: pre-treating and mixing oil-containing solid waste and waste plastic, and co-pyrolyzing to prepare primary carbon residue and pyrolysis steam; performing acid dipping or oxidation modification on the primary carbon residue to obtain modified carbon residue, performing in-situ catalytic reforming on the pyrolysis steam and the modified carbon residue under the condition that the temperature is not lower than the final pyrolysis temperature, performing fractional condensation separation on a product to obtain pyrolytic oil and hydrogen-rich gas, and performing high-valued preparation on a functional material from the secondary residue. According to the method, the problems that a catalyst needs to be additionally added and the product quality is low in the existing co-pyrolysis technology are solved. No additional catalyst is needed in the whole process, the process cost is reduced, and related secondary pollution of the catalyst is avoided; product quality improvement is effectively achieved, two kinds of solid waste are treated synchronously, and remarkable environmental protection and economic and social benefits are achieved.

The invention discloses a methanol water reforming hydrogen production method, and relates to the technical field of hydrogen energy preparation, and the method comprises the following steps: 1) catalytic reforming reaction; and 2) separation and purification. The preparation method comprises the following steps: performing nitrogen doping modification on activated carbon by a hydrothermal method to prepare an N-AC carrier; then Co is preferentially anchored to the carrier at low temperature by utilizing the steric hindrance effect of a cobalt-ammonia complex, and a highly dispersed CoxOy active center is formed through thermal decomposition; and finally, co-dipping Cu and Zn precursors, precipitating and reducing to form a Cu-Zn active center, and constructing a Cu-Zn-CoxOy / N-AC bifunctional concerted catalytic system which is used for hydrogen production by reforming methanol and water. After methanol and desalted water are mixed and gasified, the mixture is introduced into a reforming reactor loaded with a Cu-Zn-CoxOy / N-AC catalyst for reaction, generated reformed gas is subjected to cooling and gas-liquid separation and then is purified through a CO adsorption bed and a pressure swing adsorption system, and high-purity hydrogen is obtained.

Naphtha reforming catalysts are described. The catalyst includes a support comprising a solid solution or a homogenous mixture of atoms in solid state having a single crystal structure comprising AI2O3, and / or 0.01 to 3 wt% of a first metal of Group 2 or Group 15 of the Periodic Table, or a combination thereof. It also includes 0.05 to 5.0 wt% Pt and 0.05 to 5.0 wt% Re; 0.01 to 2 wt% of at least one additional metal from Groups 1, 2, 3, 9, or 15 of the Periodic Table, or combinations thereof; 0.03 to 1.0 wt% S; and 0.5 to 2 wt% of a halogen. The catalyst has an average bulk density in a range of 0.25 - 1.50 g / cc and a surface area in a range of 50-300 m2 / g. Catalytic reforming processes are also described.

The invention discloses a method for promoting sludge catalytic cracking and reforming to efficiently produce hydrogen by using sludge pyrohydrolysis byproduct melanin, and belongs to the field of organic solid waste energy recovery. Aiming at the problems that melanin in a high-temperature pyrohydrolysis-pyrolysis process inhibits sludge decomposition, pyrolysis gas components are complex and H2 directional regeneration is difficult, the byproduct melanin in the high-temperature pyrohydrolysis process is extracted and is used for enhancing the pyrolysis gas production efficiency of the pyrohydrolysis sludge. The sludge is subjected to low-temperature pyrohydrolysis treatment, the surface is loose, and the organic matter devolatilization degree is enhanced, so that solid-phase pyrolysis gas production of the pyrohydrolysis sludge is promoted. Furthermore, the melanin-like compound shows excellent reaction catalytic activity due to carboxyl and a nitrogen-containing structure, the optimal effect is achieved when the concentration is 2.5 mg / g DW, the total gas production rate is increased by 6.54%, the melanin-like compound induces pyrohydrolysis sludge cracking mixed gas to generate methane catalytic cracking CH4-> C + 2H2 and catalytic reforming CH4 + CO2-> 2CO + 2H2 reactions, and the hydrogen yield is increased by 35.92% at most. The method effectively solves the engineering bottleneck problems of melanin-like negative effects in the thermal hydrolysis-pyrolysis field and low green energy recovery rate.

The utility model relates to the technical field of methane reforming hydrogen production, in particular to a catalytic reforming hydrogen production device which comprises a reactor main body, a water vapor pre-storage tank body, a methane vapor pre-storage tank body, a first micro air pump and a flow control valve, the top of the water vapor pre-storage tank body and the top of the methane vapor pre-storage tank body are each provided with a port type feeding pipe, and each port type feeding pipe is provided with an electromagnetic valve; the number of the first micro air pumps and the number of the flow control valves are both two. A port type feeding pipe on the water vapor pre-storage tank body is communicated with the reactor main body through the water vapor pre-storage tank body, a first micro air pump and a flow control valve in sequence; the port type feeding pipe on the methane steam pre-storage tank body is communicated with the reactor main body through the methane steam pre-storage tank body, the first micro air pump and the flow control valve in sequence. The utility model can solve the problem that the existing reforming reactor is difficult to realize quantitative regulation and control of methane steam and water steam, and improves the reforming reaction effect.

The invention discloses a high-yield and low-carbon-deposition regulation and control method and system for a continuous regenerative catalytic reforming reaction. The method comprises the following steps: at the beginning, setting a weighted average inlet temperature for the four-in-one reforming reactor and setting an inlet temperature of each bed layer; measuring the content of naphthenic hydrocarbon in naphtha to be added at the beginning, and setting the initial average pressure of the four-in-one reforming reactor according to the content of naphthenic hydrocarbon in naphtha to be added; naphtha is added into the four-in-one reforming reactor for a reaction; in the reaction process, the weighted average inlet temperature of the four-in-one reforming reactor, the inlet temperature of each bed layer, the catalyst circulation rate and the average pressure are regulated and controlled in real time; and ending the experiment. The method breaks through the critical path of the current technical bottleneck, and has important significance for improving the product selectivity of the continuous regeneration catalytic reforming process, reducing the energy consumption and prolonging the service life of the catalyst.

The utility model discloses an SOFC (Solid Oxide Fuel Cell) power generation system taking biomass as a raw material, which comprises a downward moving bed, a catalytic reformer, an SOFC electric pile, a first combustor, a second combustor, a thermoelectric generator, a second separator and a compressor, and the downward moving bed comprises an organic matter feed port and a catalyst feed port. According to the utility model, organic matters are subjected to catalytic cracking and catalytic reforming, so that the organic matters are converted into micromolecular hydrogen and CO, and the micromolecular hydrogen and CO are used as fuel of the SOFC for power generation in the SOFC; a solid product obtained by cracking is combusted, and heat generated by combustion is used for power generation, so that the utilization rate of chemical energy in organic matters is increased.

The present application relates to the technical field of catalyst recovery, in particular to a recycling method of waste aluminum-based platinum-rhenium catalyst, a reforming catalyst and its application, and a method for catalytic reforming of naphtha. The recycling method comprises the following steps: S1, the waste aluminum-based platinum-rhenium catalyst is divided into two parts, one part is dissolved with an acid solution, and a first filtrate and a first filter residue are obtained by filtration; the other part is mixed with a hydroxide and then melted, the melt is dissolved with water, and a second filtrate and a second filter residue are obtained by filtration; S2, rhenium and platinum in the first filter residue and the second filter residue are separated; platinum and rhenium in the first filtrate are separated, and a tail liquid is obtained; S3, the second filtrate is mixed with the tail liquid obtained in step S2 to prepare alumina; S4, platinum and rhenium from the first filtrate, the first filter residue and the second filter residue in step S2 are enriched and loaded on the alumina prepared in step S3. The present application has high platinum and rhenium recovery rate, high economic benefit, and can realize full life cycle utilization of waste aluminum-based platinum-rhenium catalyst.

The invention discloses a nickel-silicon spinel catalyst doped with rare earth metal and based on an attapulgite-based silicon source as well as a preparation method and application of the nickel-silicon spinel catalyst, the catalyst comprises the attapulgite-based silicon source serving as a carrier, nickel which is loaded on the carrier and serves as an active component, and rare earth metal serving as an auxiliary agent, the catalyst forms a nickel silicon spinel structure. When the catalyst is used for catalyzing CH4-CO2 reforming to prepare synthesis gas, the methane / carbon dioxide conversion rate exceeds 80%, the high methane / carbon dioxide conversion rate can still be achieved within 650 h, the H2 / CO ratio in the synthesis gas is 0.8-1.2, and it is indicated that the catalyst has good stability and long service life.

The present application relates to the field of renewable energy hydrogen production, and more particularly to solar-assisted organic waste gasification and reforming hydrogen production. The system comprises a tower heat absorption device, a molten salt energy storage device, a gasifier, a catalytic reforming device, and a CO2 reaction reducer. The molten salt is heated and stored by solar heat collection, the high-temperature molten salt is used for indirect heat exchange of CO2 reduction and catalytic reforming process, the gasification process is directly heated and driven by the molten salt as a reaction medium, and the molten salt as a reaction medium has a catalytic effect to effectively inhibit the generation of tar. The system breaks through the gas production model relying on electricity, matches the tower type light absorption based on the characteristics of the molten salt, and avoids the efficiency loss caused by single medium or cross-temperature zone heat collection. Not only the energy consumption is reduced, but also a stable technical closed loop of organic waste hydrogen production under multi-level energy gradient is constructed. At the same time, the generated CO2 is introduced into the CO2 reduction reactor to complete the reduction reaction and complete the carbon cycle.

The present invention relates to a process for producing olefins and aromatics from a hydrocarbon feedstock comprising crude oil, the process comprising the following steps: a) an atmospheric distillation step; b) a fluid catalytic cracking step; c) a fixed bed hydrocracking step; d) a steam cracking step; e) a catalytic reforming step; f) an aromatics transformation and / or separation step; g) a one-step oligomerization and catalytic cracking step. Figure 1 to be published

The invention discloses a rare earth element modified nickel-based nano-catalyst and a preparation method and application thereof.The rare earth element modified nickel-based nano-catalyst comprises a carrier and an active component loaded on the carrier, and the carrier is cerium dioxide and yttrium oxide co-doped three-dimensional ordered silicon dioxide nanoparticles; the active component is metal nickel. The application refers to the application of the catalyst in preparation of synthesis gas through carbon dioxide methane reforming. According to the invention, rare earth element doped and modified three-dimensional ordered silicon dioxide nanoparticles are used as a carrier, nickel metal is loaded on the nanoparticles, and the problem of carbon deposition can be effectively reduced by adjusting the interaction of alkaline sites and oxygen vacancies on the surface of the catalyst and the metal carrier. The method provided by the invention is helpful for realizing industrialization of a carbon dioxide methane catalytic reforming reaction, realizing a carbon emission reduction target and solving a green electricity energy storage problem.

The present invention relates to a catalyst for reforming comprising: - a porous support essentially comprising alumina; - platinum at a content of between 0.2 and 0.6% by mass; - at least one element from group VA chosen from antimony, bismuth and phosphorus, at a content of between 0.2 and 0.8% by mass; - at least one element from group IA chosen from lithium, sodium and potassium, at a content of between 0.004 and 0.2% by mass; - at least one element from group IIIA chosen from gallium, indium and thallium, at a content of between 0.02 and 0.6% by mass.

The application discloses a method for directional reduction of valuable metals by hydrogen production through catalytic pyrolysis of waste ternary lithium battery separators, and belongs to the field of waste lithium battery recycling industry. After discharge, disassembly, crushing and screening, the waste ternary lithium battery is obtained as a shell, positive and negative electrode materials, a current collector, a separator and an electrolyte. The separator is used as a raw material to release volatile matter in a pyrolysis unit in an inert atmosphere. Less than 10% of the positive electrode material is taken as a catalyst, and the volatile matter is introduced into a catalytic reforming unit to obtain hydrogen-rich gas. The hydrogen-rich gas is introduced into a medium-temperature reduction unit to realize the reduction of high-valence metals such as nickel, cobalt and manganese in more than 80% of the positive electrode material. The solid particles collected from the catalytic reforming unit and the medium-temperature reduction unit are used as reduction black powder, and the reduction black powder is added to an acid solution without an additional reducing agent for leaching and recycling of valuable metals. Therefore, the method can effectively utilize the endogenous separator and positive electrode material of the lithium battery, obtain hydrogen-rich gas with high yield, and the catalyst has strong stability, avoiding the problems of easy sintering and poor reusability of conventional catalysts. The recovery rate of valuable metals is more than 90%, and the problems of high cost and serious secondary pollution caused by the introduction of an additional reducing agent are solved.

The present application relates to the technical field of petroleum chemical industry, and discloses a method and system for generating dimethylbenzene. The method comprises: sequentially performing alkylation reaction and transalkylation reaction; wherein, under alkylation reaction conditions, alkanes are contacted with benzene and hydrogen to perform alkylation reaction; under transalkylation reaction conditions, C9+ heavy aromatic hydrocarbons, toluene and hydrogen from the alkylation reaction are contacted to perform transalkylation reaction; wherein, the alkanes are raffinate oil and / or hydrogenated raffinate oil; wherein, the weight ratio of the benzene to the alkanes is 1-9:1; wherein, the weight ratio of the C9+ heavy aromatic hydrocarbons to the toluene is 1-5:1. The method uses non-aromatic hydrocarbons (C5-C9), especially catalytic reforming or steam cracking by-product non-aromatic hydrocarbons and C9+ heavy aromatic hydrocarbons as raw materials, combines alkylation reaction and transalkylation reaction, and has the characteristics of high non-aromatic hydrocarbon conversion rate and high dimethylbenzene yield.

The invention discloses a preparation method and application of a hollow spherical high-entropy catalyst with a controllable particle size, a spinel high-entropy oxide is used as a design basis to prepare a base metal high-entropy catalyst with an (ABCDE) 3O4 configuration (five metal components A, B, C, D and E comprise Fe, Co, Ni, Cr and Mn, or four of the five metal components A, B, C, D and E is a combination of any four of Fe, Co, Ni, Cr or Mn, and one of the five metal components A, B, C, D and E is any one of Mg or Zn), can be applied to a catalytic reforming technology to prepare hydrogen-rich synthesis gas, and has excellent catalytic performance on pyrolysis / gasification volatile components of complex components and excellent selectivity on hydrogen. In addition, the catalyst has the characteristics of high temperature resistance, multiple functions, high activity, high selectivity, carbon deposition resistance, long service life and the like, the hydrogen yield can be greatly improved, and stable catalysis can be carried out for an extremely long time.

The invention discloses a device for producing fuel gas from biomass materials, and relates to the technical field of production of fuel gas from biomass materials. The heat trap catalysis box comprises a plurality of laminated plates which are stacked together in a staggered mode, the surfaces of the laminated plates are coated with catalysts, and holes are formed in the laminated plates. According to the invention, the concentric pretreatment gasification bed, the annular secondary air curtain, the heat trap catalysis box, the pulsating jet heat integrator and the liquid seal deslagging structure are integrated and synergistically designed; a plurality of key technological processes such as pretreatment, pyrolysis, gasification, catalytic reforming, heat recovery and continuous deslagging of biomass raw materials are efficiently and smoothly joined and completed in a single reactor, so that the fuel gas yield and quality are remarkably improved, and the energy consumption and complexity of the system are effectively reduced; and efficient, compact and stable operation of the biomass gas production device is realized.

The invention provides a waste plastic catalytic reforming device and a reforming method, and belongs to the technical field of waste plastic resourceful treatment. The technical problems that in a traditional pyrolysis process, a catalyst is prone to carbon deposition and deactivation, carbon dioxide emission is out of control, and synthesis gas quality is unstable are solved. The waste plastic catalytic reforming device comprises a glass tube reactor, wherein a copper crucible is arranged in the glass tube reactor; the catalysis-adsorption assembly comprises a steel wire ball catalyst which is filled below the copper crucible in the glass tube, and a three-dimensional network structure of the steel wire ball catalyst provides catalytic active sites; the calcium oxide cake-shaped adsorption layer is used for adsorbing carbon dioxide generated by reaction; the spring heating ring is coaxially wound on the outer side of the copper crucible; a heating coil of the electromagnetic induction heating device is arranged around the glass tube reactor; the inert gas cylinder is used for providing inert gas for the reaction system; the product collecting unit comprises a conical flask used for drying the synthesis gas; and the aluminum foil gas production bag is used for storing the purified synthesis gas. The device is mainly used for waste plastic pyrolysis.

The invention discloses a carbon-containing molecular sieve catalyst loaded with high-dispersion active metal as well as a preparation method and application of the carbon-containing molecular sieve catalyst, and belongs to the technical field of catalyst preparation. The structure of the carbon-containing molecular sieve catalyst loaded with the high-dispersion active metal provided by the invention is that the high-dispersion active metal is loaded on a carbon-containing mesoporous silica molecular sieve. The catalyst shows relatively high reaction activity, good carbon deposition resistance and excellent hydrothermal stability in hydrogen production by catalytic reforming of methane, and meanwhile, the preparation method of the catalyst is controllable in condition, rapid, simple in step, high in efficiency and beneficial to large-scale production and application.

According to a first aspect, the present invention relates to a process and apparatus for the production of aromatic compounds, in which the raffinate (16) from an aromatic extraction unit (14) is sent to a dedicated catalytic reforming unit (17) to produce a reformate effluent (18), which is successively treated by: a recontacting section (4) to separate hydrogen (5); a stabilization section (7) to separate C1-C2 hydrocarbon compounds (8) and C3-C4 or C3-C5 hydrocarbon compounds (9); and a reformate separation column (11) to separate a C6-C8 fraction (12) and a C8+ fraction (13), the C6-C8 fraction (12) being sent back to the aromatic extraction unit (14). The present invention also relates to a method for modifying an existing apparatus for the production of aromatic compounds, comprising installing the process according to the first aspect in the existing apparatus. Figure 1 to be published