731 results about "Thermo chemical" patented technology

The invention relates to a high-strength stable solid waste-based composite cementing material and a preparation method and application thereof in the field of building materials. The high-strength stable solid waste-based composite cementing material is prepared from the following raw materials in parts by weight: 70-85 parts of composite solid waste micro powder; 10 to 20 parts of Portland cement clinker; 3-8 parts of a composite activator; 0.5 to 2 parts of a nano-scale function regulator; wherein the composite solid waste micro powder is prepared by mixing and grinding the following raw materials in parts by weight: 40-60 parts of blast furnace slag powder; 20 to 30 parts of fly ash; 10-20 parts of chemically modified electrolytic manganese residue powder; and 5-15 parts of steel slag powder. According to the preparation method, sodium metasilicate is adopted to assist medium-temperature calcination to chemically modify the electrolytic manganese residues, so that not only is the gelation activity of the electrolytic manganese residues effectively excited, but also free-state manganese, cadmium and other heavy metal ions in the electrolytic manganese residues are fixed in situ in newly formed zeolite-like silicate mineral lattices through thermochemical reconstruction; and a brand new technical path is opened up for safe and high-value utilization of the typical hazardous waste, namely the electrolytic manganese residues.

The invention discloses a double-medium thermochemical energy storage system and method. The double-medium thermochemical energy storage system comprises a first regulating valve, a gas storage tank, a thermochemical reactor, a fan, a steam pocket, a water feeding pump and a circulating water pump, the first regulating valve is communicated with an inlet of the gas storage tank through the fan and the electric heater, an outlet of the gas storage tank is communicated with an inlet of a heat exchange tube in the thermochemical reactor, an outlet of the heat exchange tube in the thermochemical reactor is divided into two paths, one path is communicated with an inlet of the fan, and the other path is communicated with a shell side inlet of the steam pocket; a bottom outlet on the shell side of the steam drum is communicated with an inlet of the circulating water pump after being combined with an outlet of the water feeding pump through a pipeline, an outlet of the circulating water pump is communicated with an inlet of a heat exchange pipe in the thermal chemical reactor, a shell side outlet of the thermal chemical reactor is communicated with the pipe side of the steam drum, and a pipe side inlet of the thermal chemical reactor is communicated with a drainage pipe. According to the system and the method, the heat exchange efficiency of the thermochemical reactor can be improved.

The invention relates to the technical field of sulfur-iodine circulating hydrogen production, in particular to a thermochemical iodine-sulfur-barium circulating hydrogen production process and a thermochemical iodine-sulfur-barium circulating hydrogen production system, which comprises the following steps: reacting excessive Ba < 2 + > with sulfuric acid in a Bunsen reaction product to obtain barium sulfate so as to obtain a first reaction mixed solution containing HI, BaSO4, H2O, BaI2 and a small amount of unreacted I2; sequentially carrying out cyclone separation, liquid removal and filter pressing to obtain a barium sulfate filter cake and a second mixed solution containing HI, H2O and BaI2; the method comprises the following steps: crushing a barium sulfate filter cake, performing high-temperature decomposition, returning gas generated by decomposition to participate in Bunsen reaction, and dissolving BaO generated by decomposition into Ba < 2 + >; and reboiling the second mixed solution to obtain hydrogen iodide steam, cooling a product obtained by decomposing the hydrogen iodide steam, carrying out gas-liquid separation to obtain hydrogen, and returning liquid obtained by gas-liquid separation to participate in the Bunsen reaction of the next cycle. Barium circulation is introduced, the process is simplified, the dosage of elemental iodine is reduced, and the cost is low.

A thermochemical system and method for thermochemical decomposition of a hydrocarbon feedstock such as methane or natural gas within an insulated volume where the important elements of the thermochemical system are located within the insulated volume. The insulated volume contains a heater and a thermal energy storage medium in thermal communication with the heater such that it is heated by the heater and stores the thermal energy it receives by a heat storage process. The thermal energy storage medium is also configured to release the thermal energy that it stored in the form of a released heat. The insulated volume also contains a hydrocarbon pyrolysis reactor thermally coupled with the thermal energy storage medium to receive the released heat and use it for driving pyrolysis of the hydrocarbon feedstock to produce pyrolysis products containing primarily hydrogen and a solid carbon product. Pyrolysis of the hydrocarbon feedstock is driven at a high temperature, such as between 700 ° C and 2, 000 ° C.

The invention discloses a high heat storage density stable thermochemical adsorption composite heat storage material and a preparation method thereof, the high heat storage density stable thermochemical adsorption composite heat storage material comprises 54%-57% by mass of mixed salt and 43%-46% by mass of a porous material, the mixed salt comprises MgSO4 and MgCl2, the mass ratio of MgSO4 to MgCl2 is 9: 1-6: 4, and the porous material is expanded perlite modified by nano alumina or a silane coupling agent. The high-heat-storage-density stable thermochemical-adsorption composite heat storage material provided by the invention is simple in preparation method, and the modified expanded perlite is used as a carrier of the mixed hydrated salt; the obtained composite heat storage material has excellent performance: the salt-containing load rate is 114-121%, the water absorption rate is 1.2-1.28 g / g, the heat storage density is 1123.5-1208.6 kJ / kg, the heat storage temperature is 133.4-141.3 DEG C, the structural strength is 10.346-12.631 kPa, the structural stability is 99.27-99.53%, and the stability is 79.7-83.3% after circulation for 30 times, that is, the composite heat storage material is high in heat storage density, high in water absorption rate, low in heat storage temperature, high in strength and not easy to scatter and fall off, and the composite heat storage material is suitable for large-scale production. And the material also has relatively good cycling stability.

The invention relates to a rapid prediction method for curing deformation of a resin-based composite material component. The method comprises the following steps: firstly, modeling a forming mold; secondly, thermal-chemical simulation is conducted on the composite material component, and temperature loads are applied to the molded surface of the forming mold in stages: in the heat preservation stage, the temperature distribution on the molded surface of the forming mold is uniform, and in the temperature rising stage and the temperature lowering stage, temperature fields of the temperature rising stage and the temperature lowering stage are obtained according to actual measurement data; and finally, carrying out thermo-mechanical analysis on the composite material component subjected to thermo-chemical simulation to obtain the stress, strain and deformation of the composite material component. According to the method, the simulation process is simplified, the simulation steps are reduced, the prediction efficiency is improved, the solving efficiency can be improved on the premise of ensuring the prediction precision, and a basis is provided for mold design and compensation.

The invention discloses a method for preparing a carbon source from kitchen waste anaerobic pretreatment slurry, belongs to the field of organic waste treatment and resource recycling, and can realize resource recycling and high-value utilization of slurry generated in the kitchen waste anaerobic pretreatment process. The method specifically comprises the following steps: 1, carrying out thermochemical hydrolysis on slurry generated in the anaerobic pretreatment process of the kitchen waste as a raw material to obtain hydrolysate; 2, carrying out preliminary centrifugal filtration on the material after the thermochemical hydrolysis reaction to obtain a primary carbon source product; 3, carrying out secondary membrane filtration separation on the centrifugally filtered material to obtain a secondary carbon source product; 4, performing low-temperature evaporation and concentration on the carbon source product subjected to membrane filtration to obtain a final carbon source product; and 5, carrying out heat drying on the residues subjected to membrane filtration to obtain dried residues. The method provided by the invention can realize high-value utilization of the kitchen waste slurry, and the obtained carbon source product can be used for nitrogen removal by denitrification of leachate and municipal sewage.

An apparatus and method for initiating thermochemical events in an adiabatic reaction calorimeter are provided. The apparatus and method may be used in safety research of lithium battery and reactive chemical thermal runaways. The apparatus comprises a motor-driven conductive heating element in thermal contact with the outer surface of the reaction in the sample container for heat transfer during heating ramp. The heating element is heated and coupled to the sample container to initiate thermal runaway and decoupled once thermal runaway is initiated, which is much faster than many existing slow heating methods used to initiate thermal runaway. Alternatively, when the heating element is kept attached until the completion of the thermal event, a power-compensation DSC curve is resulted.

The invention discloses an energy system and method for coupling calcium-based thermochemical heat storage and carbon capture. The energy system comprises a calcination unit, a carbon dioxide pretreatment storage unit, a calcium oxide heat exchange storage unit, a carbonation reaction unit and a heat utilization unit which are arranged based on a boiler. The calcining unit takes green valley electricity as energy to drive calcining reaction to realize heat storage, and generated CaO is processed by the calcium oxide heat exchange storage unit and then is stored for use in a heat release stage; generated COs are stored for standby application after passing through the carbon dioxide pretreatment storage unit; in the heat release stage, CaO and the desulfurized flue gas are subjected to heat release carbonation reaction in the carbonation reaction unit, and heat is released; caCO3 generated by the carbonation reaction can be used for the next heat storage stage; and the heat released by the carbonation reaction is conveyed to the heat utilization unit for heat exchange. Through coupling of calcium-based thermochemical heat storage and carbon capture, green electricity and off-peak electricity are fully utilized, and efficient storage and gradient utilization of energy are achieved.

The invention discloses a hydrotalcite precursor calcium-based material as well as a preparation method and application thereof. The method comprises the following steps: taking calcium hydroxide and aluminum hydroxide as a calcium source and an aluminum source, and performing constant-temperature water bath and phase transformation in an alkaline environment created by sodium carbonate to obtain a hydrotalcite precursor material with a layered double hydroxide structure; the preparation method comprises the following steps: performing high-temperature calcination on a hydrotalcite precursor, performing phase transformation on the hydrotalcite precursor to form a composite structure containing active CaO and a mayenite skeleton phase, and introducing oxygen vacancies into the material to improve the COadsorption capacity and cycling stability to obtain the calcium-based material based on hydrotalcite phase transformation modification. The problems of high-temperature sintering and agglomeration of the calcium carbonate calcium-based heat storage material in multiple heat charging and discharging processes can be solved, and the service life of the material is prolonged. Meanwhile, oxygen deficiency is introduced into the material in the phase transformation process, the reaction cycle stability and the thermochemical heat storage efficiency are improved, and the material is suitable for the field of medium-high temperature thermochemical industrial energy storage.

The invention discloses a distributed measurement method for fuel conversion rate and component content in a hydrocarbon fuel thermochemical process. The method comprises the following steps: pumping a target substance into a reaction tube, and heating to a target temperature required by thermal cracking; relevant parameters are monitored in real time; cooling in real time and collecting gas-phase and liquid-phase substances after thermal cracking of the target substance; analyzing the component distribution of the target substance after thermal cracking on line to obtain the component distribution of the target substance after thermal cracking at different temperatures; changing the pressure, and continuing the above steps to obtain component distribution of the target substance after thermal cracking under different pressures; based on component distribution of a target substance subjected to thermal cracking at different temperatures and different pressures, functions of the conversion rate and the component content of the target substance changing along with the temperature are obtained respectively, and distribution conditions of the conversion rate and the component content of the target substance along a reaction tube are obtained respectively. The invention further discloses a device adopting the method. According to the method and the device, the distributed fuel conversion rate and the content of each component are accurately measured.

The invention belongs to the technical field of water electrolysis hydrogen production, and particularly relates to a catalyst for water electrolysis hydrogen production and a preparation method and application thereof. The catalyst for hydrogen production through water electrolysis comprises a CuO / Cu2O heterojunction structure doped with a metal element X, wherein the metal element X is selected from nickel, iron or a composition of the nickel and the iron. According to the preparation method, a chemical bath deposition method and a thermal chemical treatment method are adopted, and the X-doped CuO / Cu2O heterojunction (X-CuO / Cu2O) rich in oxygen vacancies is constructed on foamy copper. The catalyst has excellent catalytic activity under an alkaline condition, has a small Tafel slope value in HER, OER and MOR reactions, and is fast in reaction kinetics; the charge transfer resistance is small in the water electrolysis process; the electrochemical surface area and the double-electric-layer capacitance Cdl are relatively large, and the electrochemical active area is large; and the stability is lasting, and constant electrolysis lasts for at least 48 hours.

The invention relates to a thermochemical energy-storage heat-preservation coring device and method for oil and gas coring, magnesium sulfate heptahydrate is preset in an interlayer of a heat-preservation cylinder of the coring device, the underground temperature is stored by utilizing dehydration and heat absorption of the magnesium sulfate heptahydrate, and then the stored heat energy is released by utilizing water absorption and heat release of the magnesium sulfate to carry out core heat preservation. The thermochemical energy storage thermal insulation structure comprises a thermal insulation cylinder and a thermal insulation trigger device, wherein a thermochemical energy storage material and reactant water are placed in an interlayer in the thermal insulation cylinder; the heat preservation trigger device comprises a trigger probe, a self-trigger and a trigger spring. The underground temperature is stored through dehydration and heat absorption of the magnesium sulfate heptahydrate, the stored heat energy is released through water absorption and heat release of the magnesium sulfate for rock core heat preservation, and extra energy supply is not needed; meanwhile, the magnesium sulfate heptahydrate is non-toxic and stable in property, can store different heat in different temperature stages, and is suitable for heat preservation coring of different reservoir depths.

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.

The invention relates to the technical field of environmental restoration, in particular to a core-shell structure nitrided zero-valent iron material obtained through gas-phase thermochemical synthesis as well as a preparation method and application of the core-shell structure nitrided zero-valent iron material. The invention provides a core-shell structure nitrided zero-valent iron material prepared through gas-phase thermochemical synthesis. The core of the core-shell structure nitrided zero-valent iron material is zero-valent iron, and the shell of the core-shell structure nitrided zero-valent iron material is Fe4.4N; the content of zero-valent iron is 60-70wt% based on the mass of the nitrided zero-valent iron material with the core-shell structure. According to the core-shell structure nitrided nano zero-valent iron material obtained through gas-phase chemical thermal synthesis, zero-valent iron is used as a core, and Fe4.4N is used as a shell; the obtained core-shell nitrided nano zero-valent iron material has a more stable surface iron-nitrogen compound, has higher electronic efficiency, and can overcome the problem of rapid passivation of nano zero-valent iron in the repair process.

The invention discloses a thermochemical energy storage composite material with a bionic ordered structure and a preparation method of the thermochemical energy storage composite material, and relates to the crossing field of new energy materials and thermochemical energy storage technologies. Through an optimization strategy of coordination of geometrical shape, internal channel and surface effect, efficient adsorption / desorption kinetics and solar energy direct drive heat storage are realized. The thermochemical energy storage composite material comprises a matrix with a bionic multi-scale mass transfer structure and hygroscopic inorganic salt uniformly loaded in the matrix, wherein the matrix is activated by KOH and then is loaded with the hygroscopic inorganic salt; the appearance of the base body imitates that of red blood cells, and the base body is in a single concave disc shape; and a vein-like layered directional vein network is arranged in the base body. The problems of moisture absorption and caking, slow mass transfer and low photothermal conversion efficiency of a traditional hydrated salt material are solved, and a new scheme is provided for efficient storage of renewable energy sources.

A method of manufacturing a piston for a brake actuator mechanism, the piston including a bushing and a nut, the nut including an outer peripheral wall, wherein prior to securing the bushing to the outer peripheral wall of the nut, the bushing is subjected to an abrasion-and corrosion-resistant thermochemical treatment at a temperature Ts until a nitrogen-rich abrasion-and corrosion-resistant surface layer is obtained, and the nut is subjected to a thermochemical hardening treatment including heating to a temperature Tc at least 200° C. higher than Ts, followed by quenching and tempering to a temperature Tr at least 100° C. lower than Ts, and obtaining a carbon-rich hardened surface layer at least locally at the nut thread.

Described is a method for mitigating particulate settling in a drilling fluid. A set of rheological data for a first drilling fluid is obtained, where the set of rheological data includes a measured viscosity value. A thermal effect of the measured viscosity value is determined, and a predicted viscosity value for a second drilling fluid having a similar composition as the first drilling fluid is determined based on the thermal effect. Based on the predicted viscosity value, an amount of a thermochemical fluid to add to the second drilling fluid is determined to increase a temperature and a viscosity of the second drilling fluid such that settling of a particulate is mitigated.

The invention discloses a thermochemical energy storage system and method of an integrated heat pump, an outlet of a water storage tank is communicated with a shell side inlet of a thermochemical reactor through a first water pump and a pipe side of a steam generator, and a shell side outlet of the thermochemical reactor is communicated with an inlet of the water storage tank through a shell side of a preheater and a pipe side of a waste heat recoverer; an outlet of the second water pump is divided into two paths, one path is communicated with the pipe side of the thermochemical reactor, the other path is communicated with the pipe side of the high-temperature heat exchanger through the pipe side of the preheater, and an outlet of the compressor is communicated with an inlet of the expansion machine sequentially through the shell side of the steam generator and the shell side of the high-temperature heat exchanger. And an outlet of the expansion machine communicates with an inlet of the compressor through the shell side of the waste heat recoverer. By means of the system and method, heat can be effectively recovered.

The present invention provides a calcium-based thermochemical heat storage material modified with high-entropy fluorite oxide and a preparation method thereof. The material comprises a calcium-based material and a high-entropy fluorite oxide, with the calcium-based material accounting for 70-85% by mass. The calcium-based material is calcium oxide, and the high-entropy fluorite oxide is a fluorite-structured oxide formed by zirconium, cerium, lanthanum, neodymium, and ytterbium, with a molar ratio of 1:1:1:1:1 for the oxides of zirconium, cerium, lanthanum, neodymium, and ytterbium. The invention utilizes the high-entropy fluorite oxide as an anti-sintering component to disperse calcium oxide and prevent its sintering, while simultaneously promoting the adsorption, dissociation, and migration of CO2 on the surface of the material, thereby enhancing the cycling stability and energy density of the heat storage material.

The invention relates to a motor vehicle comprising a passenger compartment, an electric traction machine, a battery pack, at least one power electronics unit, and a cooling radiator, a thermochemical system (10) comprising a first enclosure called a reservoir (1), containing gas in liquid phase and a second enclosure called a reactor (2) containing reactive salts, the two enclosures being configured to be selectively placed in fluid communication at least via a control solenoid valve (3), the reactor being able to be heated by supplying calories from the operation of the electric traction machine, and / or the battery pack, and / or the power electronics unit, and the reactor is capable of delivering calories, following an opening of the control solenoid valve, to the passenger compartment of the vehicle, and / or the battery pack, and / or the cooling radiator of the vehicle.

An apparatus and method for initiating thermochemical events in an adiabatic reaction calorimeter are provided. The apparatus and method may be used in safety research of lithium battery and reactive chemical thermal runaways. The apparatus comprises a motor-driven conductive heating element in thermal contact with the outer surface of the reaction in the sample container for heat transfer during heating ramp. The heating element is heated and coupled to the sample container to initiate thermal runaway and decoupled once thermal runaway is initiated, which is much faster than many existing slow heating methods used to initiate thermal runaway. Alternatively, when the heating element is kept attached until the completion of the thermal event, a power-compensation DSC curve is resulted.

The thermal chemical heat storage and carbon capture system comprises a coal-fired boiler, a calcination reactor and a carbonation reactor, the calcination reactor extracts high-temperature flue gas from the front wall of a hearth of the coal-fired boiler, the high-temperature flue gas drives CaCO3 in the calcination reactor to be decomposed into CaO and CO2, and heat storage is achieved; the reacted flue gas is pumped back into a tail flue of the coal-fired boiler, and the flue gas flow required by the reaction is controlled through a flow control valve on a pumping pipeline; caO generated by the calcination reaction can enter the carbonation reactor in the heat release stage, a heat release carbonation reaction is carried out, heat is released, CaCO3 obtained after the heat release reaction returns to the calcination reactor through a pipeline to serve as a reaction raw material, and CO2 obtained after the heat release reaction is output to a heat supply system. The integration of heat storage, heat release and carbon capture is realized by utilizing calcium-based material circulation, and the peak regulation capacity and the carbon capture economy of the coal-fired unit are remarkably improved.

The invention provides a dark metal modified lithium orthosilicate-based thermochemical heat storage material as well as a preparation method and application thereof, and belongs to the technical field of energy and material science. The components of the heat storage material comprise lithium orthosilicate and dark metal, the proportion of the dark metal in the heat storage material is 2-10 mol%, and the source of the dark metal comprises one or more of manganese dioxide, ferric oxide, nickel oxide and copper oxide. Metal ions introduced into the obtained dark metal modified lithium orthosilicate-based thermochemical heat storage material have the effects of promoting the ion migration rate and resisting material sintering, and specifically, the heat storage density and the cycling stability of the material are remarkably enhanced. In addition, due to the introduction of the dark metal oxide, the color of the heat storage material is remarkably deepened, the solar spectrum absorptivity is greatly improved, the light absorption performance of the material is greatly enhanced, and the heat storage material has higher photo-thermal conversion efficiency and is more suitable for a concentrating solar energy storage system.

Porous ePTFE articles coated with a hydrophilic coating are provided. The coating may be modified by covalent modifications to the PVOH coating. Covalent modifications may include small molecule grafting, polymer grafting to or from the PVOH backbone, modifying the PVAc precursor of the PVOH, crosslinking of the polymer via thermal or photochemistry, crosslinking of the polymer with a multifunctional crosslinking agent, and the like, and combinations thereof.

An ink composition for additive manufacturing comprises at least a first phase, the first phase being a liquid phase, and inorganic particles being distributed in the first phase. The inorganic particles are redox active. The first phase furthermore comprises at least one organic processing additive. In a method of additive manufacturing a structure for use in a thermochemical fuel production process and / or in a heat transfer application, said ink composition is deposited so as to form a precursor structure, and said precursor structure is subjected to at least one thermal treatment so as to form the structure for use in the thermochemical fuel production process and / or in the heat transfer application.

An autothermal process of concentric bubbling fluid double bed for the production of syngas by gasification with biomass steam, in the presence of a granular material includes: continuous gasification under stationary bed condition of said granular material in bubbling fluidisation regime of biomass with water vapour with thermochemical transformation of the fuel into raw syngas and char, the raw syngas including heavy hydrocarbons in the steam state and any harmful compounds in traces, in a first reaction volume; combustion in bubbling fluidised bed with air of the char and of auxiliary fuel in a second reaction volume; the transfer velocity of the granular material between the first and second reaction volumes being such that the thermal difference does not exceed 20° C.; separation from the raw syngas by hot filters; and elimination of any harmful compounds in traces.

The invention relates to the field of hydrogen production by water decomposition through thermochemical sulfur-iodine circulation, in particular to an HIx phase purification process and system for hydrogen production through thermochemical sulfur-iodine circulation, the process comprises a Bunsen reaction, a sulfuric acid decomposition reaction and an HI decomposition reaction, and an HIx phase obtained through the Bunsen reaction flows into an HIx phase purification tower; sulfuric acid impurities in the HIx phase are subjected to temperature reduction, pressure reduction and temperature rise in the tower to be converted into hydrogen sulfide; hydrogen sulfide gas is separated out from the solution and then enters a hydrogen sulfide combustion tower, the hydrogen sulfide gas and oxygen generated by decomposition of sulfuric acid are combusted into sulfur dioxide under the oxygen-enriched condition, and sulfur is returned to Bunsen for reaction in the form of sulfur dioxide. According to the method, a side reaction path regulation strategy is adopted, sulfuric acid impurities in the HIx phase are completely converted into sulfur dioxide, harm of sulfur dioxide to a hydroiodic acid decomposition catalyst is avoided, extra impurities are not introduced in the whole purification process, extra energy consumption input is not needed, system heat management is optimized, and the heat efficiency and the energy utilization rate of the whole system are improved.

The invention provides a thermochemical conversion system coupled with high-temperature heat energy storage. A high-temperature heat source is provided for various industrial processes through gradient utilization of a heat storage medium. Comprising the following steps: in a calcium carbide production process, an electric heating fluidized bed is combined with high-temperature heat storage gas of 1500 DEG C or above to supply heat, so that efficient reaction is realized and high-purity carbon monoxide is recycled; in the field of biomass conversion, a cracking zone is constructed by using a heat storage medium at 800-1200 DEG C, so that the tar conversion efficiency is remarkably improved; in the reforming hydrogen production process, a heat storage medium is used for replacing traditional natural gas combustion for heat supply, and a stable reaction environment of 800-1000 DEG C is maintained; in the aspect of waste plastic treatment, deep conversion of organic components is realized by means of high-temperature heat storage, tar generation is effectively reduced, and dioxin formation is inhibited. By arranging a heat transfer path of a heat storage medium in each process, the energy utilization rate of each independent process is increased by more than 30%, the carbon emission is reduced by 50%, and a modularized high-temperature heat supply decarburization solution is provided for the industrial field.

The invention discloses a biomass clean gasification method and system, and belongs to the technical field of substance thermochemical conversion. Biomass raw materials are dried, the dried steam and oxygen are mixed and then completely participate in gasification reaction, external source water vapor is replaced with evaporated water of the raw materials, the temperature control and fluidization effects are achieved, and the raw materials participate in the gasification reaction; the utilization of raw water and evaporation heat of raw materials is realized, the gas water vapor content is reduced, and the downstream condensate water treatment difficulty and cost are reduced. Biomass raw material drying, biomass gasification and tar high-temperature cracking are completed in a grading mode, gas sensible heat is used for raw material drying, fly ash energy is used for tar high-temperature cracking, the gasification heat efficiency is effectively improved, raw material raw water is used for fluidization and gasification reactions, external source water vapor is replaced, and the gas quality and the gasification heat efficiency are improved.