643 results about "Catalyst regeneration" patented technology

A reactor system includes a reactor that treats a lipid feedstock using a metal oxide catalyst to produce a treated stream comprising a bio-oil. The reactor system includes a catalyst zone in which the metal oxide catalyst reacts with the lipid feedstock to produce the treated stream. The reactor system operates in a reaction mode, during which the lipid feedstock flows in a downward direction through the metal oxide catalyst to produce the treated stream. Alternately, the reactor also operates in a regeneration mode, during which coke is burned from the metal oxide catalyst thereby regenerating the metal oxide catalyst. In one aspect, a regeneration mode pressure is less than a reaction mode pressure within the reactor to fluidize the catalyst.

A process for upgrading plastic derived oil includes contacting the plastic derived oil with a mixed catalyst in a first reactor, where the mixed catalyst includes a decontamination catalyst and a cracking catalyst different from the decontamination catalyst. The first reactor reduces concentrations of halogen-containing compounds in the plastic derived oil. The process includes passing the first reactor effluent to a second reactor and contacting the first reactor effluent with the cracking catalyst to produce a second effluent comprising light olefins and naphtha range hydrocarbons. The process includes separating used mixed catalyst from the first reactor to produce a used decontamination catalyst and a second used cracking catalyst, and regenerating the decontamination catalyst and cracking catalyst in separate regenerators to reduce exposure of the cracking catalyst to halogen-containing compounds produced during regeneration of the used decontamination catalyst.

A process for upgrading plastic derived oil includes contacting a plastic derived oil stream with a decontamination catalyst in a first reactor, separating a first reactor effluent from a used decontamination catalyst, passing the first reactor effluent to a second reactor downstream of the first reactor, contacting the first reactor effluent with a cracking catalyst in the second reactor, and separating a second reactor effluent from a used cracking catalyst. The cracking catalyst is different from the decontamination catalyst. The process further includes regenerating the used decontamination catalyst in a decontamination catalyst regenerator to produce regenerated decontamination catalyst, and regenerating the used cracking catalyst in a cracking catalyst regenerator separate from the decontamination catalyst regenerator to produce regenerated cracking catalyst. Regenerating the used cracking catalyst separately reduces deactivation of the cracking catalyst by halogen-containing compounds produced during regeneration of the decontamination catalyst.

The invention discloses a method for realizing carbon dioxide emission reduction in a catalyst regeneration process, regenerated flue gas is subjected to dust removal and pressure reduction to obtain low-pressure flue gas, the low-pressure flue gas is divided into a first flue gas material flow and a second flue gas material flow, the first flue gas material flow is subjected to heat exchange, denitration and desulfurization dust removal treatment to obtain desulfurized flue gas, and the desulfurized flue gas is subjected to heat exchange, denitration and desulfurization dust removal treatment to obtain a second flue gas material flow; water vapor in the desulfurized flue gas is removed to obtain low-humidity flue gas, part of the low-humidity flue gas serves as circulating flue gas to participate in catalyst regeneration, part of the low-humidity flue gas and hydrogen are subjected to a combustion reaction, deoxidized flue gas is obtained, and high-concentration carbon dioxide is obtained after the deoxidized flue gas is dehydrated; the second flue gas material flow is subjected to heat exchange with the circulating flue gas or is returned together with the circulating flue gas to participate in catalyst regeneration or is mixed with the first flue gas material flow in the denitration process, and heat exchange, desulfurization and dust removal are continued to obtain desulfurized flue gas. The method solves the problems of large total carbon dioxide emission, low carbon dioxide concentration and high trapping cost of a hydrocarbon processing device in the prior art.

The invention belongs to the field of catalyst regeneration, and provides a regeneration method of a platinum-based low-carbon alkane dehydrogenation catalyst, which specifically comprises the following steps of: simultaneously carrying out charking and oxychlorination operations before a deactivated catalyst reaches the highest roasting temperature, and adding agent pouring treatment in the regeneration process, and measures for protecting the dispersity of platinum on the catalyst are added in the reaction heating process of the catalyst and after the application is finished, so that the service life of the catalyst is prolonged. According to the regeneration method, the regeneration step of the deactivated catalyst is simplified, chlorine injection, water injection, vulcanization and other operations are not needed, charking, oxychlorination and different reduction depths caused by different positions of the catalyst are avoided, the performance uniformity of the catalyst and the redispersity of platinum are improved, and the regeneration efficiency is improved. The problems that in an existing regeneration method, the dispersity of active components is low, the number of repeated regeneration times is small, and the performance of the catalyst is reduced are solved, the regenerated catalyst obtained through the regeneration method is not lower than that of a fresh catalyst in the aspects of catalyst conversion rate, selectivity and stability, and the regeneration effect is remarkable.

The invention relates to the technical field of desulfurization catalyst regeneration, in particular to a desulfurization catalyst integrated regeneration device and a processing technology thereof.The desulfurization catalyst integrated regeneration device comprises a reduction tower body, an L-shaped supporting rod is fixedly connected to the upper surface of the reduction tower body, a driving mechanism is fixedly connected to the upper end of the L-shaped supporting rod, and a stirring mechanism is fixedly connected to the side face of the L-shaped supporting rod; a turning mechanism is arranged between the driving mechanism and the stirring mechanism, a lifting mechanism is fixedly connected to the upper surface of the reduction tower body, and an air exchange mechanism is arranged on the inner wall of the reduction tower body. The baffles are driven by the sliding rods to turn over on the side faces of the special-shaped sliding grooves, and the baffle at the other end is driven by the third transmission belt, so that the two communicating transoms can exchange air through the air inlet electric fan and the air outlet electric fan, the constant temperature in the reduction tower body is guaranteed, the manufacturing cost is low, and the service life is long; constant temperature is adjusted in a physical ventilation mode, and the error rate is greatly reduced.

The invention relates to the field of biomass energy conversion, in particular to a multi-mode intelligent purification system and method for a biomass gasifier, and the system integrates five modules of self-adaptive multi-field coupling tar cracking, multi-dimensional real-time intelligent monitoring, in-situ nano catalyst regeneration, energy cascade recovery and digital twin driving. According to the system, through the synergistic effect of an electric field, ultrasonic waves, catalysis and a temperature gradient, the tar removal efficiency is remarkably improved to 99.5% or above, the content of tar at an outlet is lower than 5 mg / Nm < 3 >, an intelligent monitoring module collects technological parameters in real time, and precise control is ensured; the catalyst regeneration module performs in-situ regeneration on a catalyst based on monitoring data to maintain efficient operation of the system; the energy recovery module utilizes heat energy in a gradient mode and optimizes energy configuration, the digital twin module constructs a system digital model, optimization and predictive maintenance of real-time data driving are achieved, and the system achieves innovation breakthrough of intelligence and energy conservation while improving the biomass gasification purification efficiency.

The utility model discloses low-temperature denitration catalyst regeneration equipment, and relates to the technical field of denitration catalyst regeneration, the low-temperature denitration catalyst regeneration equipment comprises a treatment box and a soaking box, a water flow driving mechanism is arranged at the bottom of the treatment box and is used for driving water flow to separate dust particles which are stubborn in adhesion; according to the low-temperature denitration catalyst regeneration equipment, three-dimensional circulating vertical water flow is formed through the water flow driving mechanism, and the low-temperature denitration catalyst regeneration equipment is formed by combining the chemical action of a cleaning agent; according to the low-temperature denitration catalyst regeneration cleaning device, double cleaning of physical washing and chemical dissolution of stubborn dust particles on the surface and in pores of a low-temperature denitration catalyst body is achieved, the problem that dust is difficult to separate in traditional soaking cleaning is effectively solved, and the regeneration separation effect is remarkably improved; accurate movement of the low-temperature denitration catalyst body in the horizontal direction and the vertical direction is achieved, and manual intervention is reduced through automatic operation.

The utility model discloses a regenerator for esterification reaction catalyst, which relates to the technical field of catalyst regeneration, and comprises a bracket, a reaction vessel arranged on the bracket, and a steam heating jacket sleeved on the outside of a sealing groove, wherein a sampling port is arranged on the reaction vessel, a gate valve is arranged on the sampling port, a feed port of the gate valve is connected with the reaction vessel through the sampling port, a connecting pipe is arranged on the gate valve, a sampling tank is threadedly connected on the connecting pipe, the sampling tank is connected with the discharge port of the gate valve through the connecting pipe, and a sealing component is arranged between the sampling tank and the connecting pipe. The utility model can make it unnecessary to increase the pressure in the reaction vessel or to cool down the steam heating jacket during sampling, and at the same time, the closing of the gate valve can ensure the sealing between the reaction vessel and the outside world, so that sampling can be made more convenient, quick and easy to operate, and the purpose of multiple sealing between the sampling tank and the reaction vessel is achieved, so as to ensure the normal and orderly progress of the regeneration work.

The invention discloses a method for efficiently preparing 1, 1, 2, 3-tetrachloropropene, which comprises the following steps: by taking 1, 1, 2, 2, 3-pentachloropropane / 1, 1, 1, 2, 3-pentachloropropane as a raw material, carrying out dehydrochlorination reaction in a tank reactor under the action of a composite catalyst to prepare the 1, 1, 2, 3-tetrachloropropene. Compared with the traditional dehydrochlorination of alkali liquor, the method has the advantages of less generation of three wastes, simple process operation and easiness in industrial implementation. The prepared composite catalyst can be suitable for pentachloropropane of different structures as a raw material, the catalyst compatibility is high, the application scene is wide, the composite catalyst is good in catalytic activity and high in selectivity, and the selectivity of tetrachloropropene is 95% or above and can reach 99% to the maximum. Meanwhile, the composite catalyst is good in regeneration performance, the inactivated catalyst is easy to regenerate, and the catalytic activity is not reduced after regeneration; the composite catalyst material is easy to obtain and low in price, the production cost can be greatly saved, and industrial production is facilitated.

The invention relates to a combustion optimization and cryogenic separation-based carbon dioxide enrichment and hydrogen production synergy process for a combined device, which is characterized in that regeneration of a spent catalyst in a catalytic cracking device is changed into pure oxygen incomplete combustion, and circulating carbon dioxide is used for stabilizing fluidization and controlling tail combustion. And after the regenerated flue gas is subjected to deep purification and cryogenic separation, the part rich in carbon monoxide is fed into a medium-temperature change reactor of the steam hydrocarbon reforming device for hydrogen production, so that resource upgrading of catalytic coke is realized. And compressing and cooling the part rich in carbon dioxide to obtain about 98% of liquid phase product for subsequent application. According to the catalytic cracking device, only the regenerator needs to be adjusted, the deep purification and compression cryogenic separation unit is additionally arranged, the hydrogen production device can improve the treatment capacity of the medium-temperature change reactor, implementation is convenient, and the catalytic cracking device is suitable for new and old devices. The invention further relates to a system for carbon dioxide enrichment and hydrogen production synergy of the integrated device based on combustion optimization and cryogenic separation.

The invention discloses a regeneration method of a metal modified mordenite catalyst used in a methanol amination reaction, and belongs to the technical field of catalyst regeneration. The catalyst regeneration method comprises the following steps: firstly, removing non-framework aluminum in a catalyst by using an organic acid solution, and then washing by using an organic solvent to remove residual organic acid and part of carbon deposit after acid treatment; oxidizing carbon deposit on the surface of the catalyst by adopting a hydrogen peroxide solution and inert mixed gas containing ozone; and finally, reducing active metal components in the catalyst by adopting hydrogen. According to the regeneration method, carbon deposit on the surface of the catalyst can be well and effectively removed under the low-temperature condition, generation of non-framework aluminum on the surface of mordenite in the regeneration process is reduced, the service life of the catalyst is effectively prolonged, and the regenerated catalyst can keep good reaction performance in the methanol amination reaction.

The invention relates to the technical field of high-value chemical recycling of waste plastics, in particular to a method for producing a high-value product through mixed catalytic cracking of waste plastics and heavy oil, which comprises the following steps: A) crushing the waste plastics, and carrying out anhydrous cleaning treatment to obtain clean waste plastic fragments; b) mixing the clean waste plastic fragments with a solvent in a liquefaction unit, and heating and liquefying to obtain waste plastic liquefied liquid; c) filtering the waste plastic liquefied liquid in a filtering unit; d) contacting the filtered filtrate with a fluidized catalyst in a catalytic cracking unit for catalytic cracking reaction to obtain an oil-gas mixture and a spent catalyst; e) performing product separation on the oil-gas mixture; heavy oil is recycled to the liquefaction unit; conveying the spent catalyst to a catalyst regeneration unit, and regenerating under an aerobic condition; the regenerated hot catalyst circularly enters the catalytic cracking unit. According to the invention, high-valued cyclic utilization of the waste plastics can be realized.

The invention relates to the technical field of petrochemical industry, and discloses a dehydrogenation catalyst regeneration method, which comprises: (1) carrying out first charring on a spent catalyst in a first-stage charring zone, and carrying out second charring on the spent catalyst in a second-stage charring zone; (2) enabling the product after the second charring to pass through a drying zone, an oxychlorination zone and a cooling zone to obtain a regenerated catalyst; wherein gases discharged from the first-section charring area, the second-section charring area and the oxychlorination area are respectively and independently circulated. According to the method, the drying area is arranged below the scorching area, so that independent circulation of gases in the scorching area and the oxychlorination area is realized, the noble metal dispersity of the low-carbon alkane dehydrogenation catalyst can be improved, and the regeneration effect of the catalyst is improved.

The present invention relates to a temperature regulation device and a temperature regulation method for denitration catalyst regeneration. The device includes a first furnace unit, a second furnace unit and a temperature regulation component. The method includes: putting a catalyst into the first furnace unit, closing the first pipeline, heating the first furnace unit to a preset temperature threshold; opening the first pipeline and turning on the induced draft fan, adjusting the rotational speed of the induced draft fan to control the cooling rate in the first furnace unit within a first preset speed range. When the temperature difference between the first furnace unit and the second furnace unit is within a preset temperature difference range, close the first pipeline, and connect the first furnace unit to the atmosphere, and adjust the rotational speed of the induced draft fan to control the cooling rate in the first furnace unit within a second preset speed range. When the temperature in the first furnace unit reaches room temperature, turn off the induced draft fan and take out the catalyst. The device and method provided by the present invention not only control the first furnace unit and the second furnace unit to alternately heat up and cool down, but also can accurately adjust the heating / cooling rate, and also utilize the waste heat in the furnace to save energy.

The invention relates to the technical field of synthesis of organic compounds, and discloses a dibenzoylmethane preparation method, which comprises the following steps: preparation of a functionalized ionic liquid, preparation of a deep eutectic solvent, construction of a composite system, implementation of a condensation reaction, regeneration of catalytic active sites, pH adjustment, crystal separation and the like. According to the method, a temperature-responsive two-phase system formed by the functionalized ionic liquid and the deep eutectic solvent is combined with a catalyst regeneration process and a pH regulation crystallization separation technology, so that the greenization, high efficiency and integration of the dibenzoylmethane synthesis process are realized, the product purity and yield are remarkably improved, and the environmental pollution and the production cost are reduced.

A method includes 1) removal oil from aluminum-based platinum rhenium-containing spent catalysts; 2) mixing the spent catalyst and sodium hydroxide powder and heating in an oxygen-free environment to obtain a clinker; 3) leaching the clinker in a weakly alkaline aqueous solution to obtain a first leach solution containing the elements Al and Re and a first leach residue containing Pt and Re; 4) converting the first leaching solution into a sodium meta-aluminate solution and a sodium perrhenate solution; 5) adding an aqueous solution of an acidic reagent and an aqueous solution of an oxidizing reagent to the first leaching residue for oxidizing acid leaching to obtain a second leaching solution containing precursors including platinum and rhenium; 6) reducing and loading the precursors on a carbon carrier to obtain the modified platinum based catalyst for fuel cell. The method enables the recovery of Re and Al elements from spent catalysts.

The invention discloses an internal circulating fluidized bed and method for calcium cycle catalytic methane dry reforming, the internal circulating fluidized bed comprises an outer reactor and an inner reactor, the outer reactor sleeves the inner reactor, and the inner part of the inner reactor is used as a carbon capture zone for carbon dioxide adsorption reaction; an area between the inner reactor and the outer reactor is used as a carbon conversion area for methane dry reforming and catalyst regeneration reaction; the bottoms of the carbon capture area and the carbon conversion area are communicated through a circulating feed port, a discharge port in the top of the carbon capture area is connected with a gas-solid separator, and a solid outlet of the gas-solid separator is connected with the carbon conversion area; the bottom of the inner reactor is provided with a waste gas inlet and an air distribution plate, the bottom of the side wall of the outer reactor is provided with a raw material gas inlet, and the top of the outer reactor is provided with a synthesis gas outlet and a material supplementing port; by adopting the internal circulating fluidized bed technology, the problem of discontinuous reaction of a fixed bed reactor is solved, the continuous and stable proceeding of the calcium circulating methane dry reforming reaction is realized in the same reactor, and the production efficiency is remarkably improved.

A process for upgrading plastic derived oil includes contacting the plastic derived oil with a mixed catalyst in a first reactor, where the mixed catalyst includes a decontamination catalyst and a cracking catalyst different from the decontamination catalyst. The first reactor reduces concentrations of halogen-containing compounds in the plastic derived oil. The process includes passing the first reactor effluent to a second reactor and contacting the first reactor effluent with the cracking catalyst to produce a second effluent comprising light olefins and naphtha range hydrocarbons. The process includes separating used mixed catalyst from the first reactor to produce a used decontamination catalyst and a second used cracking catalyst, and regenerating the decontamination catalyst and cracking catalyst in separate regenerators to reduce exposure of the cracking catalyst to halogen-containing compounds produced during regeneration of the used decontamination catalyst.

The invention discloses a production system and method for preparing high-carbon aldehyde through carbonyl synthesis of high-carbon olefin. The system comprises a reaction device, a separation device, an aldehyde condensing device, a product tank, a polymer supplementing unit and a recycling unit, the polymer supplementing unit is connected with the separating device; the cyclic utilization unit comprises an extraction separation device connected with a liquid phase outlet of the separation device, a polymer recovery device connected with a water phase outlet of the extraction separation device, and a catalyst regeneration device connected with an organic phase outlet of the extraction separation device. According to the method, a carbonyl metal catalytic system is adopted to catalyze reaction of high-carbon olefin and synthesis gas, and heating separation of reaction liquid is performed by introducing an organic polymer protection catalyst; the separated catalyst liquid phase is subjected to water extraction separation and post-treatment, and the organic polymer and the catalyst are recycled. Recycling of the catalyst and efficient separation of the product are realized, and the stability of the catalyst separation section is enhanced.

The present invention relates to a production process for synthesizing hexamethylenediamine by catalytic hydrogenation of adiponitrile. The process comprises the following steps: 1) preparing a catalyst precursor; 2) calcining the catalyst precursor to obtain a catalyst; 3) catalytic hydrogenation of adiponitrile under the condition of the catalyst to synthesize crude hexamethylenediamine; 4) separating hexamethylenediamine from the discharge of a fluidized bed reactor containing crude hexamethylenediamine. The present invention uses Ni(NO3)2 and / or Mg(NO3)2 as main raw materials, doped with transition metal oxides, and then performs ultrasonic adsorption using Al2O3 as a catalyst carrier to load Ni(NO3)2 and / or Mg(NO3)2 and transition metal oxides on Al2O3, and obtains a catalyst through high-temperature calcination. The doping of transition metal oxides can improve the basicity of the catalyst, eliminating the need to add a strong basic co-catalyst in the catalytic reaction stage, reducing by-product formation. Moreover, it increases the specific surface area of the catalyst, thereby reducing the adsorption of the reaction product hexamethylenediamine on the catalyst, extending the service life of the catalyst, and saving the energy consumption for catalyst regeneration.

The invention discloses a catalytic filter material loaded with a Mn-CoOx composite metal oxide, a preparation method of the catalytic filter material and a regeneration method after sulfur poisoning, and belongs to the technical field of industrial tail gas denitration. According to the catalytic filter material prepared by the invention, through a complete technical route of surface functional modification of polydopamine, hydrothermal in-situ growth of a manganese-cobalt catalyst and activation by dipping in hydrogen peroxide, the dust removal function of the catalytic filter material used as the filter material is reserved, and the originally inert polymer fiber surface is activated, so that the catalyst is uniformly dispersed on the surface of the filter material and is firmly loaded on the surface of the filter material. The catalytic filter material which is poisoned and inactivated by sulfur dioxide is soaked in the hydrogen peroxide solution, so that the catalyst is regenerated, the method has the advantages of greenness, simplicity, convenience, low cost and the like, and the service life of the catalytic filter material is effectively prolonged. In conclusion, the catalytic filter material prepared by the invention is high in denitration rate, strong in combination firmness, good in stability, renewable after inactivation, green and low in cost, and has important application value in the technical field of dust removal and denitration.

A catalyst regeneration gas loop is operated in a heat exchanger decoking mode. A regeneration gas is diverted away from a burn zone of the catalyst regeneration gas loop and to a heat exchanger, where coke deposits are disposed on a surface of the heat exchanger. The regeneration gas is prevented from flowing to an oxychlorination / calcination zone of the catalyst regeneration gas loop. Within the heat exchanger, the coke deposits are combusted with oxygen of the regeneration gas, thereby removing the coke deposits from the surface of the heat exchanger and producing carbon dioxide. Oxygen is replenished to the regeneration gas. The regeneration gas is recycled to the heat exchanger.

The invention relates to the technical field of carbon dioxide separation, and discloses a method and a device for capturing and fixing carbon dioxide in ship tail gas. The method comprises the following steps: introducing seawater, an amine catalyst and ship tail gas into a CO2 trapping tower to complete CO2 absorption reaction, and discharging decarburized tail gas and a mixed solution I; introducing the mixed solution I into a CO2 immobilization reactor, carrying out solid-liquid separation after completing a CO2 immobilization precipitation reaction, and discharging a CO2 immobilization product and a mixed solution II; the mixed solution II is introduced into a catalyst regenerator, after a catalyst regeneration reaction is completed, solid-liquid separation is carried out, a CO2 fixed product and a mixed solution III are discharged, and the mixed solution III is concentrated and reused in S1. By adopting the method disclosed by the invention, the regeneration energy consumption of the amine catalyst can be reduced, and the CO2 is directly fixed to form a solid-phase product after being captured, so that the subsequent processes of compressing, liquefying and storing the CO2 in a storage tank can be omitted, and the occupied area of the device is reduced.

The utility model discloses an online regeneration sintering flue gas CO removal system. The system comprises a CO reactor, a zoning flow guide device and a CO catalyst layer are arranged in the CO reactor, the CO catalyst layer is arranged above the zoning flow guide device, the zoning flow guide device comprises a plurality of independent flow guide channels, each flow guide channel is provided with a regeneration burner and communicated with a gas pipeline, and the regeneration burner is communicated with the gas pipeline. A heating combustor is arranged below the CO reactor and communicated with a gas pipeline, a flue at the top end of the CO reactor is connected with a combustion-supporting air pipeline, a pipeline is connected to the combustion-supporting air pipeline to a combustion-supporting fan, and an outlet of the combustion-supporting fan is provided with a plurality of pipelines which are communicated with the regeneration combustors and the heating combustor respectively. According to the method, the combustor is used for heating part of the flue gas in a partitioned mode to enable the flue gas to reach the CO catalyst regeneration temperature, low-energy-consumption CO catalyst online regeneration is achieved, meanwhile, the influence on the overall flue gas temperature is small, and good economical efficiency is achieved.

The present invention discloses a platinum-based catalyst regeneration method, a regenerated platinum-based catalyst and its application. The platinum-based catalyst regeneration method provided by the present invention adds the platinum-based catalyst to a mixed solution of hydrochloric acid and hydrogen peroxide, so that the platinum sintered on the catalyst after the active component platinum is sintered is converted into chloroplatinic acid, and the chloroplatinic acid can be uniformly and stably loaded on the platinum-based catalyst carrier after removing the water in the solution system, and then after calcination, uniformly dispersed platinum single substance particles are formed, and the particle size of the single substance particles is uniform, which is similar to the size of the platinum single substance particles on the platinum-based catalyst before sintering. Due to the good dispersibility of the active component, the platinum-based catalyst regenerated by the regeneration method provided by the present invention has excellent target reaction selectivity and reactant conversion rate when catalyzing the reaction of dehydrogenating propane to prepare propylene.

The invention provides a catalyst regeneration energy recovery power device, and belongs to the technical field of thermodynamics and thermodynamic. An air channel outside is communicated with the charring-regeneration system through a heat source regenerator, and the charring-regeneration system is further provided with a smoke channel which is communicated with the outside through a heat source heat exchanger and the heat source regenerator. The compressor is provided with a first steam channel communicated with the low-temperature expansion machine through the heat regenerator, the low-temperature expansion machine is communicated with the evaporator through a low-pressure steam channel, the compressor is communicated with the heat source heat exchanger through a second steam channel, and the condenser is communicated with the heat source heat exchanger through the booster pump and the evaporator. The heat source heat exchanger further communicates with a high-temperature expansion machine through a steam channel, the high-temperature expansion machine further communicates with an evaporator through a low-pressure steam channel and a heat regenerator, and the evaporator further communicates with a compressor and a condenser through a low-pressure steam channel. The condenser further communicates with the outside through a cooling medium channel, the low-temperature expansion machine and the high-temperature expansion machine are connected with the compressor and transmit power, and the catalyst regeneration energy recovery power device is formed.

The present invention provides a catalyst regeneration apparatus and a catalyst regeneration method that can regenerate a degraded catalyst while suppressing a decrease in production efficiency during the production of a predetermined product. [Solution] A catalyst regeneration device for a reactor 3 that produces a predetermined product by catalytic action of catalysts in each reaction tube 2 using a plurality of reaction tubes 2, each filled with catalyst C, while continuing to introduce the raw material gas, the device comprises a catalyst degradation detection unit for detecting whether or not the catalyst C in each of the plurality of reaction tubes 2 has deteriorated, a regeneration gas supply unit 6 capable of supplying a predetermined regeneration gas to each reaction tube 2 for regenerating the deteriorated catalyst C, and a control unit 7 that controls the regeneration gas supply unit to supply regeneration gas to the reaction tube 2 having a catalyst C that has been detected to have deteriorated based on the detection results from the catalyst degradation detection unit.

The invention relates to the technical field of hydrogen production through methane cracking, in particular to a sea urchin-shaped composite catalyst, a preparation method thereof and application of the sea urchin-shaped composite catalyst in hydrogen production through methane cracking. The obtained sea-urchin-shaped composite catalyst has a sea-urchin-shaped appearance, can efficiently catalyze methane cracking to produce hydrogen, simultaneously captures CO2 produced by vapour gasification carbon deposition in a catalyst regeneration process to generate CaCO3, promotes the gasification hydrogen production of the carbon deposition and strengthens the removal effect of the carbon deposition, and the generated CaCO3 can also be converted into CO in situ, so that the catalyst has a good application prospect. The obtained catalyst has good anti-sintering performance and excellent recycling performance.

The invention discloses a method for regenerating and scorching a molecular sieve catalyst of a moving bed light hydrocarbon conversion device. The method comprises the following steps: a to-be-regenerated molecular sieve catalyst reacted by a moving bed light hydrocarbon conversion device enters a regenerator scorching zone and a drying zone for catalyst scorching regeneration, the scorching zone is divided into three sections, namely a pre-scorching section, a first scorching section and a second scorching section, and the regenerated catalyst is recycled; a horizontally arranged baffle plate is arranged between the pre-burning section and the first-section burning section; the charred regeneration gas is led out from the upper part of the regenerator, is subjected to heat exchange, cooling, drying or compression and then is divided into two paths, the first path enters a pre-charring section for pre-charring carbon powder on the surface and in the molecular sieve catalyst to be regenerated so as to prevent temperature runaway of a catalyst bed, and the charred regeneration gas is combined with the second path and then is divided into three paths, the first path is supplemented with air and heated and then enters a first-section charring section, the second path is supplemented with air and heated and then enters a second-section charring section, and the third path serves as drying gas and enters a regenerator drying area. The method provided by the invention can effectively control the temperature of the catalyst bed, ensure the burning effect of the catalyst and prolong the service life of the catalyst.