396 results about "Moving bed" patented technology

The invention belongs to the technical field of solar photo-thermal power generation, and discloses a tower type solar power generation system based on lunar soil particle moving bed heat exchange, which utilizes local materials of lunar soil to prepare solid heat storage particles as a heat transfer and heat storage medium, greatly reduces the mass and volume of the system and the cost and risk of transporting materials from the earth, and improves the energy efficiency. The efficient particle moving bed heat exchanger combining the particle receiver and the heat collector utilizes direct efficient contact heat exchange between solid particles and between the particles and a heat exchange working medium, has the characteristics of high heat exchange efficiency, small heat loss and compact structure, and is particularly suitable for space vacuum and microgravity environments; it is ensured that heat is reliably and stably transmitted to the Brayton cycle power generation system from concentrated solar energy, and power is generated through the Brayton cycle power generation system.

The invention discloses an efficient treatment process for salt-containing industrial wastewater, and relates to the technical field of wastewater treatment. Salt-containing industrial wastewater sequentially passes through an adjusting tank, a silicon and hardness removal unit, a biochemical unit, a secondary sedimentation tank, a fluorine removal unit, a filter unit, a catalytic ozonation unit, a moving bed bio-membrane reactor treatment unit, a powder carbon sedimentation unit and an ultrafiltration-reverse osmosis double-membrane unit to be treated, produced water is recycled, and concentrated water enters an evaporation and concentration unit; the silicon removal and hardness removal unit is used for treating the wastewater by adding a flocculating agent and a composite coagulant aid; the flocculating agent is a chitosan-based flocculating agent, and the addition amount of the flocculating agent is 10 to 20 mg / L; the composite coagulant aid is composed of a magnesium-aluminum hydrotalcite coagulant aid and alginic acid-silicate hybrid microgel according to the mass ratio of 2: (1-4), and the addition amount of the composite coagulant aid is 5-15 mg / L. The treatment effect of the salt-containing industrial wastewater is remarkably improved.

The invention provides a garbage pyrolysis gasification multi-stage directional regulation-gas-solid phase reforming synergistic hydrogen production treatment process which comprises the following steps: first-stage regulation: pretreatment and graded feeding: crushing, sorting, drying and catalytic coating treatment are performed on garbage through a physical-chemical directional means; second-stage regulation and control: performing low-temperature pyrolysis directional dechlorination, and performing thermochemical directional conversion on plastic and biomass garbage at 350-450 DEG C; third-stage regulation and control: gasifying and melting are coordinated and oriented, and a gas-solid phase coupling reaction is realized in double fluidized beds at 800-900 DEG C; four-stage regulation and control: multi-stage gas-solid phase reforming is carried out, and the hydrogen yield is increased through catalysis-adsorption synergistic effect in a 700 DEG C moving bed; and five-stage regulation and control: deep purification and hydrogen purification, wherein the synthesis gas is selectively oxidized by utilizing chemical looping combustion to release hydrogen with the purity being greater than or equal to 99.99%. According to the invention, the molten ash is used as a catalytic carrier, and the Fe-Ce active sites of the molten ash are utilized to synchronously realize tar cracking and synthesis gas reforming, so that the conversion rate of tar is effectively improved.

A bedslide assembly is provided. The bedslide assembly includes one or more of a movable deck frame assembly, a latching assembly, a longitudinally extending rod, and a latch. The latching assembly may be attached to the deck frame assembly. The latching assembly may include a plate that is pivotally coupled about an axis to the deck frame assembly. The longitudinally extending rod may be coupled to the plate at a location that is spaced apart from the axis such that movement of the grip moves the longitudinally extending rod which pivots the plate about the axis. The plate includes a latch arm. Movement of the longitudinally extending rod in a first direction pivots the plate which moves the latch arm in order to abut and move the latch.

The invention discloses a high-value preservation utilization and harmless treatment system and method for waste aluminum. Comprising the steps of waste aluminum pretreatment (three-dimensional screening and nano bubble cleaning), dynamic paint removal (moving bed partition low-temperature catalytic pyrolysis), smelting, melt deep purification (Ar gas rotary dehydrogenation, ceramic filtration and electromagnetic refining) and aluminum ash resourceful treatment (80 DEG C hydrolysis and ammonia gas and composite salt crystallization recovery). According to the method, the problems of high cost, degraded utilization, environment-friendly defects and incomplete aluminum ash treatment of the existing waste aluminum regeneration raw materials are solved, direct regeneration of 3004 / 5052 and other high-added-value aluminum alloy plate strip foils is realized, and the alloy component deviation is less than or equal to 0.3 wt%; carbon emission is reduced to 0.82 t CO per ton of aluminum, and is reduced by 31% compared with that of traditional secondary aluminum; and the recovery rate of aluminum ash ammonia reaches 92.5%, the purity of the composite salt product is 96.3%, the double targets of high-valued cyclic utilization and harmless treatment of waste aluminum resources are achieved, and the method has remarkable economic, environment-friendly and technical advantages.

The invention provides a method for separating and purifying ergothioneine by simulated moving bed chromatography, which comprises the following steps: step 1, carrying out pretreatment, sterilization and ultrafiltration on fermentation liquor to obtain ultrafiltrate; 2, separating and purifying the ultrafiltrate by adopting a simulated moving bed chromatography system, and collecting a target component containing ergothioneine; and step 3, carrying out deep desalination, decoloration, concentration, cooling crystallization, centrifugation and drying on the target component to obtain a pure ergothioneine product. According to the method for separating and purifying the ergothioneine through the simulated moving bed chromatography, in the ergothioneine preparation process, the ergothioneine is purified from fermentation liquor through the simulated moving bed technology, and the method is high in efficiency and capable of achieving automatic and continuous large-scale production.

A method for separating and purifying 4MP1 from a mixture containing 4MTP2 and 1-Hexene comprises the following steps: continuously introducing a solution in which 4MTP2, 1-Hexene and 4MP1 with any concentration are dissolved into a simulated moving bed chromatography system as a raw material solution, collecting a high-purity 4MP1 solution from raffinate of the simulated moving bed chromatography system by adopting a metal organic framework material as a stationary phase, and separating the high-purity 4MP1 solution from the raffinate of the simulated moving bed chromatography system. The extraction liquid is a solution containing impurities 4MTP2 and 1-Hexene. The invention provides a brand new method for separating 4MP1 from 4MTP2 and 1-Hexene, and a complete separation scheme is provided for the prior art; in the separation of high-concentration 4MP1, the relative purity of the separated and purified 4MP1 can reach gt; the recovery rate is gt; and in the separation of low-concentration 4MP1, the rectification level is also exceeded, and the method is more suitable for 4MP1 thermosensitive substances.

The invention belongs to the field of adsorption, and discloses a multifunctional continuous adsorption system and an adsorption process method thereof, the system comprises a plurality of adsorption columns and a plurality of multi-way valves for controlling the flow directions of different solutions, and the functions of real-time adsorption, water washing, elution and the like of different adsorption columns and random switching of the functions are realized through combined rotating operation of the multi-way valves. The system overcomes the problems that a traditional fixed bed adsorption system has many valves and a continuous moving bed adsorption system is complex in structure and the like, and has the advantages of low investment cost and operation energy consumption, simple structure and operation, low failure rate and the like. Besides, on the basis of the system structure, upgrading, reconstruction and function expansion of an existing fixed bed adsorption system are easy to realize, so that maximum utilization of an adsorption material is realized while continuous adsorption operation is realized.

The invention discloses a moving bed gasification furnace. Belongs to the technical field of solid fuel thermal conversion and combustion boilers, the moving bed gasifier comprises a hearth, a fire grate assembly and an air injection assembly, the hearth is provided with a feeding port, a discharging port and a gasified gas discharging port, the fire grate assembly is arranged below the hearth, and the hearth and the fire grate assembly jointly define a first chamber, a second chamber and a third chamber which are sequentially arranged; the feeding port is communicated with the first cavity, the discharging port and the gasified gas discharging port are both communicated with the third cavity, the second cavity is communicated with the first cavity and the third cavity, and the aperture ratio of ventilation holes of the fire grate assembly is gradually increased in the direction from the first cavity to the third cavity. And the hearth is provided with an air injection assembly for injecting flow-adjustable air into the synthesis gas flow of the third chamber, so that oxygen and temperature can be strictly controlled, high-efficiency and low-tar gasification of biomass fuel is realized, and the quality of gasified gas is favorably improved.

The invention provides a loess-based hydrogen sulfide adsorbent, a preparation method thereof and application of the loess-based hydrogen sulfide adsorbent in removal of hydrogen sulfide in natural gas. Loess with a specific substance content is taken as a raw material, the material is prepared through pretreatment, modification activation and extrusion molding, and modification activation comprises alkali activation, graphene oxide crosslinking and copper and zinc loading. According to the invention, specific loess is combined with a targeted modification and activation process, so that the porosity and the specific surface area are effectively improved, and a new active phase is formed and endowed with adsorption and catalytic oxidation effects. The prepared adsorbent has the remarkable advantages of low cost, high sulfur capacity, long penetration time, excellent regeneration performance and the like. In a medium-low-temperature dry desulfurization scene, HS (the concentration is reduced to 0.1 ppm or below) in natural gas can be efficiently removed, and the device is particularly suitable for small and medium-sized natural gas purification devices in various process scenes such as a fixed bed and a moving bed, and can also be expanded to various fields such as coal chemical industry, petrochemical industry, biogas purification, environmental protection and the like.

The present invention relates to a process for preparing lithium sulfide (LiS) from lithium hydroxide (LiOH) and hydrogen sulfide (HS), characterized in that the lithium hydroxide is sulfided in a reaction zone (9) comprising at least one moving-bed tubular reactor (9a) with an ascending oscillating spiral configuration, in which the lithium hydroxide (4) circulates countercurrently to an anhydrous gas mixture (10) containing hydrogen sulfide and at least one inert gas.

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 application discloses a built-in mobile bed desulfurization device for horizontal boiler system. The device is arranged in the high-temperature flue gas in the medium-temperature section of the boiler shell and comprises a multilayer mobile bed steel frame, more than one mobile bed insert is arranged in each layer of the mobile bed frame along the direction of the high-temperature flue gas flow, each mobile bed insert comprises a porous plate made air-permeable shell, a pneumatic conveying feeding port is arranged on the upper section of one side of the shell and is used for conveying granular desulfurizer filler into the air-permeable shell, a by-product discharging screw conveyor is arranged at the bottom of the shell, and a discharging pipe is arranged at the bottom of one side of the shell and corresponds to the by-product discharging screw conveyor. The device can be directly arranged in the horizontal boiler shell, only one set of desulfurizer storage and transportation circulating discharge system needs to be arranged outside the boiler, a desulfurization tower and a bag-type dust collector do not need to be arranged, project land occupation is greatly saved, and construction cost is low.

The invention discloses a moving bed type flue gas purification device which comprises a shell, an air inlet is formed in the lower surface of the shell, an air outlet is formed in the upper surface of the shell, a plurality of partition plates are arranged in the shell and divide the space in the shell into a plurality of flue gas channels, and a flue gas passing opening is formed in each partition plate; the left end and the right end of each flue gas channel are respectively connected with the two feeding and discharging channels through flue gas channel valves capable of being opened and closed; a plurality of flue gas purification modules, wherein the plurality of flue gas purification modules are arranged in each flue gas channel; the plurality of conveying devices are respectively arranged in the plurality of flue gas channels; and the two feeding and discharging devices are respectively arranged in the two feeding and discharging channels. The moving bed type flue gas purification device provided by the embodiment of the invention has the advantages of good purification effect, no need of shutdown replacement, adjustable purification efficiency and the like.

The invention relates to the technical field of high polymer material synthesis, in particular to a high-strength polycarbonate resin preparation method which comprises the following steps: 1, designing a fatigue life oriented monomer ratio; step 2, gradient polymerization of phase state perception: raising the temperature to a temperature T1 corresponding to a viscosity change rate threshold in the first stage, and maintaining until the distillation rate of a byproduct reaches a safety critical value; in the second stage, variable-rate cooling is implemented based on real-time cloud point detection, an end-capping reagent is injected at the critical point temperature T2 of terminal hydroxyl concentration, and the injection rate is linked with the pressure change rate of the reaction kettle; 3, amorphous confinement solid phase tackifying: treating the polymer particles in a moving bed dynamic temperature field, wherein the temperature field range is dynamically set according to the difference value between the glass transition temperature Tg and the crystallization starting temperature Tc; and step 4, performing electric field grading relaxation. Through the technical means of multi-stage temperature control, electric field adjustment, magnetic field orientation and the like, the molecular chain structure of the resin is comprehensively optimized, and the reliability of a final product in long-term use is ensured.

The invention discloses an intelligent steel slag granulation production system and a production cooling method, and belongs to the technical field of steel slag treatment.The intelligent steel slag granulation production system and the production cooling method are characterized in that the intelligent steel slag granulation production system comprises a production module, a monitoring module, an intelligent analysis module and a dynamic control module; the production module comprises a closed cover, a tipping machine, a granulating bed, a granulating machine and a spraying structure; the production cooling method comprises the steps that a slag tank containing molten steel slag is placed on the tipping machine, the tipping device pours the steel slag on the moving bed, the moving bed conducts reciprocating rectilinear motion to lay the steel slag, the granulation roller conducts forward and reverse rotation motion to cool and crush the steel slag, the monitoring module collects data, and the intelligent analysis module analyzes the data to generate an adjusting instruction. And the dynamic control module executes an adjusting instruction, so that the effects of monitoring the steel slag production process in real time, accurately regulating and controlling spraying and equipment operation according to the steel slag temperature and position, efficiently cooling and guaranteeing production are achieved.

The application discloses a kind of photothermal synergic catalysis co-pyrolysis system and method of marine organic solid waste, method includes the following steps: waste fishing net, plastic garbage and seaweed are crushed and mixed uniformly according to mass ratio (2-4):(3-5):(1-3);Mixed material and multifunctional composite photocatalyst prepared by seaweed are sent into moving bed reactor according to mass ratio (10-20):1, under the condition of concentrated solar energy leading, electric heating auxiliary, continuous co-pyrolysis is carried out;Pyrolysis product is separated by three-stage condensation to obtain heavy oil, light oil, water and gas.The method realizes the green cycle of "waste treatment", the catalyst cost is low, the degree of system intelligence is high, and provides an efficient, environmentally friendly, economically feasible innovative path for the resource utilization of marine organic solid waste.

The utility model belongs to the technical field of additionally arranging beds in hotels, and particularly relates to a movable bed body for additionally arranging beds in hotels, which comprises a base plate, a backrest plate, a connecting structure and a roller structure, the backrest plate is detachably fixed to the bed head end of the base plate through the connecting structure, the backrest plate is made of solid wood, the side face, close to the base plate, of the backrest plate is covered with a second soft cushion layer, and the idler wheel structure comprises universal wheels arranged on the side face, away from the base plate, of the backrest plate. The base plate and the backrest plate are made of solid wood plates, the overall mass is increased, the wood material face of the base plate is shielded and covered with the first soft cushion layer, the texture of the bed body is improved, the backrest plate is shielded and covered with the first soft cushion layer, a user is prevented from touching hard materials in the using process, and the use experience of the user is improved.

This invention relates to a method for the liquid-phase adsorption separation and purification of 2,3-dichloronitrobenzene and 3,4-dichloronitrobenzene, belonging to the field of chemical separation. This method for the simultaneous separation and purification of 2,3-dichloronitrobenzene and 3,4-dichloronitrobenzene involves preparing small spherical molecular sieve adsorbents from USY molecular sieves, silicon coupling agent-modified illite, and biomass polysaccharides, which are then loaded into a countercurrent simulated moving bed for separation and purification. This method can simultaneously obtain 2,3-dichloronitrobenzene and 3,4-dichloronitrobenzene with a purity ≥99%. The separation and purification method adopted in this invention is not only energy-efficient and highly effective, but also enables continuous production of two high-purity dichloronitrobenzenes, possessing significant industrial application value.

The invention discloses a process method for selective deep desulfurization and denitrification of aromatic-rich fractions. The process method comprises the following steps: (1) mixing aromatic-rich diesel oil with hydrogen, and then feeding the mixture into a pre-hydrogenation reaction zone I for pre-hydrogenation dealkene reaction; (2) a product obtained in the step (1) enters a hydrofining reaction zone II for a hydrofining desulfurization and denitrification reaction; (3) carrying out flash evaporation on the product obtained in the step (2) to separate recycle hydrogen, enabling the obtained refined diesel oil to enter a moving bed adsorption denitrification reaction zone III, and carrying out deep adsorption denitrification reaction on the refined diesel oil under the action of an adsorption denitrification agent to obtain a desulfurized and denitrified refined aromatic-rich diesel oil component; and (4) enabling the inactivated adsorption denitrification agent in the step (3) to enter an adsorbent regeneration area IV, and completing reduction and drying of the inactivated adsorption denitrification agent under the action of a desorption agent to obtain the cyclically regenerated adsorption denitrification agent. According to the process method, deep removal of the sulfur-containing nitrogen-containing compound can be realized, and the investment cost is also greatly reduced.

The present invention belongs to the technical field of coal chemical processing, and discloses a coal hydrogasification furnace system and a hydrogasification method of a liquid slag removal moving bed. In the hydrogasification system of the present invention, the gas outlet of the hydrogasifier is sequentially connected to the air inlet of the hydrogen membrane separator through a pressure reducing tank, a chilled water scrubber, and a gas-liquid separator. A hydrogen outlet and a methane-rich outlet are provided on the hydrogen membrane separator, wherein the hydrogen outlet of the hydrogen membrane separator is divided into two paths and connected to the second air inlet and the third air inlet of the hydrogasifier, and the pressure reducing tank, the chilled water scrubber and the liquid outlet of the gas-liquid separator are all connected to a tar collector. The hydrogasification method of the present invention can realize the controllable product components in the process of stabilizing the hydrogasification of coal, enhance the adaptability of raw materials and the diversity of products, and the methane yield and the yield of high light aromatics (BTX, PCXN) are high.

This invention relates to the field of carbon dioxide capture technology, and particularly to an apparatus and method for directly capturing carbon dioxide from the air and recovering the capture liquid. The invention utilizes a thin-layer moving bed to spray droplets of a lean capture liquid and achieve carbon dioxide capture through air convection. When the carbonate concentration in the capture liquid reaches a certain value, it is defined as a rich capture liquid. The lean capture liquid is recovered using an electrolytic process. A specific structure and connection relationship achieve good interaction, enabling efficient, rapid, low-energy, and controllable absorption of carbon dioxide from the air under low partial pressure (440–460 ppm). This achieves high-efficiency, large-scale carbon dioxide capture and allows for continuous production of high-purity hydrogen and carbon dioxide products. The capture liquid is reused, realizing an integrated capture and desorption system design. Using 0.5 MkOH as the lean capture liquid, a 600m³… 3 Under the condition of / h induced draft, it is converted into a rich liquid after 13h, and the average CO2 concentration at the outlet is 380ppm, which is 80ppm lower than the CO2 concentration in the inlet air.

The invention belongs to the technical field of chemical engineering and environment-friendly separation engineering, and discloses a continuous moving bed automatic control system for accurately controlling flow inlet and outlet based on a PID algorithm. Comprising an area identification module, a PID parameter dynamic switching module, a multivariable cooperative control module, a feedforward compensation module and a flow regulation execution unit, all algorithms are solidified and run in the same PLC kernel, and through three core technology innovations of partition PID control, multivariable cooperative control and a composite anti-interference strategy, the flow regulation performance is improved. The problems that a traditional continuous moving bed system is low in flow control precision, slow in response, weak in anti-interference capacity and the like are solved. The accuracy of flow control is improved, and the requirement of human intervention is reduced; and through automatic adjustment, the production efficiency is effectively improved. The failure rate is reduced; the system is high in response speed and can adapt to flow change in real time, and the automation level of the industrial production process is improved.

The utility model discloses an automatic feeding device for a flue gas moving bed dry desulfurization calcium-based desulfurizing agent, which relates to the technical field of desulfurization equipment and comprises a stock bin and an elevator which are mounted on one side of a desulfurization bin, a discharge port of the stock bin is communicated with a feed port of the elevator, and a discharge port of the elevator is communicated with a chute three-way distributor; a second belt conveyor and a third belt conveyor which are arranged in parallel and a first belt conveyor connected with the second belt conveyor are mounted at the top of the desulfurization bin, and two discharge ports of the chute three-way distributor are respectively communicated with the first belt conveyor and the third belt conveyor; the second belt conveyor and the third belt conveyor are each provided with a discharging opening communicated with a desulfurizing agent feeding opening of the desulfurizing bin. According to the utility model, the desulfurizing agent can be automatically added, the labor intensity of workers is low, the number of personnel allocation is small, the adding amount is accurate, and the utilization rate of the desulfurizing agent is improved while the desulfurization rate is ensured.

The present application provides a kind of low-loss transmission dense moving bed device and its operating method, including adsorption tank, regeneration tower and displacement cleaning tank, adsorption tank, regeneration tower and displacement cleaning tank use the moving bed operation mode of lower liquid inlet upper liquid outlet, and the top of at least two of adsorption tank, regeneration tower and displacement cleaning tank is provided with gas inlet, by inputting gas with pressure, for resin delivery provides downward power, and the transfer of resin is optimized from gravity discharge to gravity+power dual-action discharge, so that resin transfer delivery is stable, not easy to block;Can not need additional transport water.Additionally, resin breakage problem caused by high-speed impact, mechanical collision and other factors can be avoided from the root;Realize low-loss transmission.

The invention discloses an underground ore body in-situ embedded leaching-adsorption circulating system which is installed in an underground ore body provided with a channel system. The channel system comprises a vertical shaft and a plurality of horizontal roadways; a mounting channel is drilled in the vertical direction between the middle sections of any two horizontal roadways which are adjacent up and down; an in-situ embedded leaching-adsorption circulating system for an underground ore body comprises an underground sealed pipeline type moving bed, a leaching solution collecting device and a barren solution recycling device, the underground sealed pipeline type moving bed comprises a sealed material storage tank, middle double pipes and a lower liquid inlet tank, the underground sealed pipeline type moving bed is fixedly mounted in a target mounting channel and two horizontal roadways communicated with the upper end and the lower end of the target mounting channel; the lixivium collecting device comprises a liquid extraction pipe, a lixivium collecting tank and a liquid extraction pump A; the barren solution recycling device comprises a leaching solution blending tank, a spraying pipe, a cross-layer pipeline and an infusion pump B; the method is used for completing adsorption and enrichment of the leaching solution and closed-loop regeneration of the leaching solution in situ in a mining layer of an underground ore body.

1. Name of the product in this design: Moving bed pump. 2. Purpose of this design: For medical staff to transfer and move patients using the levitation force of the air blanket inflated by the bed transfer pump during the patient transfer process. 3. The key point of the design of this product lies in its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The application provides a method for preparing phenol by oxidizing benzene with N2O in a mobile bed reactor, which comprises: the mobile bed reactor comprises a movable part and at least three catalyst fixed beds which are fixed on the movable part and can switch positions with the movement of the movable part; the at least three catalyst fixed beds are divided into a reaction zone, a regeneration zone and a standby zone; the conveying pipeline of N2O and benzene is communicated with the catalyst fixed bed of the reaction zone, and N2O and benzene are introduced into the catalyst fixed bed of the reaction zone to carry out an oxidation reaction to prepare phenol; after the oxidation reaction is completed, the movable part is moved to disconnect the conveying pipeline of N2O and benzene from the reacted reaction zone and to communicate the conveying pipeline of N2O and benzene with the catalyst fixed bed of the standby zone, and the oxidation reaction is continuously carried out; meanwhile, the regeneration pipeline is communicated with the reacted reaction zone to carry out catalyst regeneration. The catalyst has a long service life, the reaction can be continuously carried out, the process flow is simple, and the method has a good application prospect.

The invention relates to a reactor (1) at least for pyrolyzing a hydrocarbon-containing fluid at least for producing an at least hydrogen-containing fluid, comprising a reactor housing (2) and a reactor space (3) arranged inside the reactor housing (2), the reactor (1) having a reactor top (4) and a reactor bottom (5), the reactor top (4) and the reactor bottom (5) each have a supply opening (6) and an outlet opening (7), which can be closed at least intermittently and through which at least fluids or solids, in particular particles, can be introduced or discharged, in order to produce the moving bed (8), particles are introduced into the reactor space (3) at least intermittently and continuously through the reactor top (4). In a reactor capable of preventing an electrical heat input from being unstable in a methane pyrolysis process for producing hydrogen and pyrolytic carbon, provision is made for a plurality of conical components (9) to be arranged in the reactor space (3), each conical component (9) being hollow and having an input opening (10) and an output opening (11), and the diameter of the input opening (10) being larger than the diameter of the output opening (11).

The application discloses a biomass double-moving-bed gasification hydrogen production system and method, and relates to the field of biomass hydrogen production technology. The system comprises a feeding unit for providing and continuously feeding pretreated large-size high-density biomass raw materials mixed with biochar containing alkali metal oxides and salts thereof; a microwave pyrolysis unit comprising a microwave heating cavity and a conveying screw, which is used for receiving the biomass raw materials from the feeding unit, and performing microwave pyrolysis on the biomass raw materials while the biomass raw materials are pushed and moved in the microwave heating cavity; the microwave heating cavity is provided with a washing gas channel for radial circumferential injection; a combustion gasification unit arranged at the lower part of the microwave pyrolysis unit and receiving gaseous volatile components and solid biochar from the microwave pyrolysis unit; the combustion gasification unit is provided with a throat combustion zone and a gasification zone. The application can effectively improve the biomass pyrolysis efficiency, enhance the lightness of pyrolysis products, reduce hydrogen loss caused by combustion, significantly improve the hydrogen production yield, improve the tar removal intensity of combustion gasification, and create better conditions for obtaining a final hydrogen product with higher quality.