38 results about "Organic fuel" patented technology

The invention discloses a preparation method of a perovskite type high-temperature-resistant CO2 methanation catalyst, which comprises the following steps: firstly, preparing CaZrO3, then dissolving CaZrO3 powder, a nickel source, a soluble organic fuel and a certain amount of ethylene glycol in deionized water according to a molar ratio of 1: (0.2-0.8): (0.1-0.5), stirring to obtain a dispersion liquid, then putting carrier monoclinic ZrO2 powder in the dispersion liquid, and stirring to obtain the perovskite type high-temperature-resistant CO2 methanation catalyst. The preparation method comprises the following steps: uniformly mixing the raw materials, carrying out ultrasonic treatment for 5-12 hours, heating the obtained mixture at 300-550 DEG C until spontaneous combustion, carrying out high-temperature calcination at 800-900 DEG C for 1-2 hours after flame is extinguished, collecting the calcined product, and carrying out ball milling and granulation to obtain the NiO-CaZrO3 / ZrO2 catalyst with a certain mesh number. According to the preparation method of the catalyst, a solution combustion method is introduced in the preparation process, so that active components of the prepared catalyst are fully dispersed, and further high-temperature calcination is performed on the basis, so that the active components are stably anchored on the surface of the ZrO2 carrier, and the catalytic activity and the stability of the catalyst are improved.

The invention provides a lithium ferric manganese phosphate precursor and a preparation method thereof, and lithium ferric manganese phosphate and a preparation method thereof, and relates to the technical field of lithium ion battery positive electrode materials. A preparation method of a lithium ferric manganese phosphate precursor comprises the following steps: (1) respectively providing ferric salt, phosphorus salt and manganese salt, dissolving the ferric salt, the phosphorus salt and the manganese salt in pure water, uniformly stirring at normal temperature, adding organic fuel, and uniformly stirring to obtain a precursor solution; (2) sintering the precursor solution under the ultrasonic action to obtain a lithium ferric manganese phosphate precursor; the sintering temperature ranges from 350 DEG C to 750 DEG C, the sintering time ranges from 0.5 h to 2 h, and the ultrasonic power ranges from 1000 W to 2000 W. The synthesized lithium ferric manganese phosphate precursor has a fine and uniform three-dimensional pore structure, and the compaction density of the lithium ferric manganese phosphate positive electrode material and the capacity of the battery are improved.

The invention belongs to the technical field of high-entropy metal oxide nano powder materials, and particularly relates to a novel high-entropy metal oxide material for a negative electrode of a lithium ion battery and a preparation method of the novel high-entropy metal oxide material. On the basis of a solution combustion synthesis technology, a redox reaction system is constructed by adopting metal nitrate and organic fuel (such as citric acid, urea and the like), three spinel type high-entropy metal oxide nano powder materials with good electrochemical performance are provided and comprise (FexCoyNizCrmLin) 3O4, (FexCoyNizCrmLinZnq) 3O4 and (FexCoyNizCrmLinMgq) 3O4, the ratio of x: y: z: m: n: q is (0.1-1): (0.1-1): (0.1-1): (0.1-1): (0.1-1): (0.1-1): (0.1-1): (0.1-1): (0.1-1), and the reversible specific capacity can reach 442.2-1190.3 mAhg <-1 > after 400 cycles under the current density of 500 And the rapid synthesis process significantly shortens the time required by traditional sintering, the obtained powder product also has the characteristics of narrow particle size distribution, high grain boundary purity, excellent chemical uniformity and the like, and an effective preparation way is provided for developing a high-performance electrode material.

The preparation method comprises the following steps: dissolving lithium nitrate, manganous nitrate, cobalt nitrate, nickel nitrate, an organic fuel and an organic carbon source in deionized water to obtain a uniform mixed solution, atomizing the mixed solution to form carbon-containing fog drops, and preparing the lithium-rich manganese-based positive electrode material with the hierarchical pore micro-nano structure by taking nitrogen as a protective gas and a carrier gas, so as to obtain the lithium-rich manganese-based positive electrode material with the hierarchical pore micro-nano structure. Carrying out self-propagating combustion reaction on the carbon-containing fog drops at a certain ignition temperature to obtain combustion product powder; placing the combustion product in a crucible, and calcining in an inert atmosphere to obtain calcined powder; placing the calcined powder in a crucible, and calcining in an air atmosphere to remove carbon; and fully grinding the calcined product to obtain the lithium-rich manganese-based positive electrode powder with the hierarchical pore micro-nano structure. The lithium-rich manganese-based positive electrode material with the microporous-mesoporous hierarchical pore micro-nano structure is obtained, and the cycling stability of the lithium-rich manganese-based positive electrode material can be effectively prolonged. The method is simple and convenient in process, low in energy consumption, low in price and high in capacity preservation rate, and has a relatively good industrial application prospect.

The invention relates to a photocatalytic fuel cell based on a cadmium sulfide titanium dioxide composite photo-anode and application, and relates to the technical field of preparation of novel photo-electrode materials, the cell adopts a continuous ion deposition method to prepare a CdS quantum dot modified TiO2 photo-anode with a specific layer number, and the CdS quantum dot modified TiO2 photo-anode, a platinum cathode and an ion exchange membrane form a synergistic system. The layer number and the particle size of CdS quantum dots in the photo-anode are accurately controlled, an efficient heterojunction structure is constructed, and the visible light utilization and charge separation efficiency is improved to the maximum extent; a chemical bonding effect is formed on the surface of the photo-anode by using carboxyl-containing organic fuel, so that an electron transmission path is obviously accelerated; the dual functions of organic wastewater degradation and electric energy synchronous output are achieved, and long-term operation stability is kept. The technology provides an efficient and low-consumption solution for resourceful treatment of industrial organic wastewater.

The invention relates to a soot aerosol generating device and a working method thereof. The device comprises a soot aerosol generating system and a gas supply system. The soot aerosol generating system comprises an oxidizing gas laminar flow cavity, a combustion cavity and a cooling and uniform mixing cavity; the oxidizing gas laminar flow cavity is provided with an oxidizing gas inlet and a fuel gas conveying pipe; a laminar flow plate is arranged at the lower end of the oxidizing gas laminar flow cavity; a plurality of laminar flow holes are formed in the laminar flow plate; the gas outlet end of the fuel gas conveying pipe penetrates through the oxidation gas laminar flow cavity and then extends into the combustion cavity, and a bluff body combustion head is installed at the gas outlet end of the fuel gas conveying pipe. Based on the diffusion flame combustion process of the organic fuel under different combustion conditions, soot aerosols with different particle sizes and different concentrations can be generated in a wide range, and the generated soot aerosols are stable in physicochemical property and can be used in multiple fields such as instrument test calibration and combustion characteristic research.

To provide a fuel additive that can be applied to any organic fuel oil and can provide a fuel oil with improved combustion efficiency, and to provide a method for producing the same. A fuel additive, obtained by making an enzyme-carrying carrier by ripening an enzyme by allowing an enzyme solution, prepared by introducing a raw material enzyme containing a lipase into purified water which has been modified to sever the hydrogen bonds of the water, to stand while stirring intermittently at normal temperature, causing the enzyme to be carried by introducing a porous material and allowing the moisture to dry naturally, can improve combustion efficiency and suppress generation of greenhouse gases while suppressing the generation of harmful components in the exhaust gas without adverse effects on a combustion engine, when used as is as a fuel or when used added to a fuel.

The present invention provides a multi-level porous micro-nanostructured lithium-rich manganese-based positive electrode material and a preparation method thereof. First, lithium nitrate, manganese nitrate, cobalt nitrate, nickel nitrate, organic fuel, and organic carbon source are dissolved in deionized water to obtain a uniform mixed solution. Then, the mixed solution is atomized to form carbon-containing droplets. Nitrogen is used as a protective gas and a carrier gas to cause the carbon-containing droplets to undergo a self-propagating combustion reaction at a certain ignition temperature to obtain a combustion product powder; the combustion product is placed in a crucible and calcined in an inert atmosphere to obtain a calcined powder; the calcined powder is placed in a crucible and calcined in an air atmosphere to remove carbon; the calcined product is fully ground to obtain a multi-level porous micro-nanostructured lithium-rich manganese-based positive electrode powder. The present invention obtains a multi-level porous micro-nanostructured lithium-rich manganese-based positive electrode material with both micropores and mesopores, which can effectively prolong the cycle stability of the lithium-rich manganese-based positive electrode material. The present invention has a simple process, low energy consumption, low price, high capacity retention rate, and good industrial application prospects.

The invention belongs to the field of energy and environmental protection, and discloses a method and system for preparing biochar and co-producing carbon dioxide through internal heating type pyrolysis. The preparation method comprises the following steps: providing a medium-temperature oxygen-carrying heat carrier to be in contact with a solid organic fuel and pyrolyzing the medium-temperature oxygen-carrying heat carrier and the solid organic fuel to obtain a pyrolysis gas-phase product and a pyrolysis solid-phase product; separating the pyrolysis solid-phase product to obtain a low-temperature oxygen-carrying heat-carrying body and biochar; the pyrolysis gas-phase product makes contact with a high-temperature oxygen-carrying heat carrier and is oxidized, and a high-temperature gas product and a medium-temperature oxygen-carrying heat carrier are obtained; carrying out first cooling separation on the high-temperature gas product to obtain high-concentration carbon dioxide; the obtained medium-temperature oxygen-carrying heat carrier can be used for pyrolytic reaction of solid organic fuel. By utilizing the method and the system, high-concentration carbon dioxide and high-concentration nitrogen can be obtained while pyrolysis of the solid organic fuel is realized to produce the biochar, and the effect of controlling pollutant and carbon emission is achieved while effective utilization of resources is realized.

Explosive compositions for use in high temperature, reactive ground, or both, are disclosed. The explosive compositions can include an emulsion with a continuous organic fuel phase and a discontinuous oxidizer phase. The oxidizer phase can include one or more Group I or Group II nitrates.

The invention relates to the technical field of lithium ion batteries, in particular to a lithium manganese iron phosphate positive electrode material and a preparation method thereof.The preparation method comprises the steps that a manganese source, an iron source and organic fuel are dissolved in a solvent and evenly mixed to obtain a mixed solution, and a self-propagating reaction is initiated through a solution combustion synthesis method; and after the reaction is finished, obtaining the ferromanganese composite oxide precursor with a three-dimensional porous spongy microstructure. The core advantage of the invention is that the three-dimensional porous spongy precursor skeleton is directly constructed in situ without depending on any additional template. The authigenic porous structure endows the precursor with a huge specific surface area and an interpenetrating pore channel network.

The application provides a method for synchronously preparing a metallurgical dephosphorizing agent by gasifying flue gas of a calcium-based reinforced metallurgical furnace and desulfurizing flue gas, and belongs to the technical field of metallurgical energy-saving and environmental protection. The method uniformly loads calcium-based materials on coal gasification raw materials through pretreatment loading, sprays the calcium-based materials into a metallurgical furnace gasification flue through a spraying system on the metallurgical furnace gasification flue, realizes coal gasification under the action of high-temperature flue gas, and the loaded calcium-based materials play a role in strengthening organic fuel cracking gasification in the process. Meanwhile, sulfur-containing flue gas released by the organic fuel is solidified by the calcium-based materials, the solidification products enter a dust removal system with dust, the calcium-based materials react with iron-containing components in the dust in the metallurgical furnace gasification flue to generate calcium ferrite with dephosphorizing metallurgical performance, and the calcium ferrite enters the dust removal system with the dust. The collected dust removal ash is used for high-value dephosphorizing agent production after being separated and purified through magnetic separation, and provides an effective way for the sustainability and economical production of the metallurgical industry.

To provide an operating method for a boiler device that suppresses emissions of carbo dioxide during an operation.SOLUTION: An operating method for a boiler device includes: burning organic fuel in a first combustion chamber; burning inorganic fuel in a second combustion chamber connected to the first combustion chamber; and supplying carbon oxide gas generated through combustion of the organic fuel to the second combustion chamber. The inorganic fuel is an inorganic substance combustible in the presence of combustion-supporting gas including carbon oxide gas, inorganic hydrate obtained through hydrogenation of at least part of the inorganic substance or their mixture.SELECTED DRAWING: Figure 1

The application belongs to the technical field of materials, and discloses a Pd nanoparticle loaded H-ZSM-5 nanomaterial, a preparation method and application of the Pd nanoparticle loaded H-ZSM-5 nanomaterial, the preparation method comprising the following steps: step 1: 1-butyl mercaptan is added drop by drop into a palladium acetylacetone solution, and the palladium acetylacetone / 1-butyl mercaptan complex is obtained through sufficient stirring reaction; step 2: H-ZSM-5 molecular sieves are added, and the complex is adsorbed on the outer surface of the molecular sieves; after centrifugation and drying, a precursor is obtained; step 3: the precursor is subjected to gas phase migration to obtain a treated precursor; step 4: a reduction reaction is performed; after drying and cooling, the required nanomaterial is obtained; the catalyst obtained by the application has high spatial selectivity, and >85% Pd is distributed in the pore channel; the size is monodisperse, the pore channel geometry is limited to replace the polymer template, and there is no shielding effect; and the preparation method is green and environmentally friendly, and does not need a strong reducing agent, organic fuel or high-temperature calcination.

The present application relates to the field of calcium oxide synthesis, and discloses a method for synthesizing nanospherical calcium oxide carbon dioxide adsorbent.The method comprises the following steps: dissolving calcium nitrate and organic fuel in a solvent to prepare a precursor solution, wherein the solvent is deionized water or a mixture of deionized water and anhydrous ethanol; pressurizing the precursor solution and then feeding it into a pneumatic atomizing nozzle to form a precursor solution spray, and then feeding the precursor solution spray into a vertical tubular furnace to generate a combustion reaction, thereby obtaining nanospherical calcium oxide carbon dioxide adsorbent.The present application changes the form of the precursor solution by using a spray method, and further adjusts the size of the product particles by adjusting the usage ratio of the precursor raw materials, the reaction temperature and other methods, thereby obtaining nanospherical calcium-based carbon dioxide adsorbent with high carbon dioxide capture performance.

Provided is an operation method for a boiler device with which a carbon dioxide discharge amount during operation is limited. This operation method for a boiler device includes: burning an organic fuel in a first combustion chamber; burning an inorganic fuel in a second combustion chamber connected to the first combustion chamber; and supplying a carbon oxide gas generated by burning the organic fuel to the second combustion chamber. The inorganic fuel is an inorganic substance that can be burned in the presence of a combustion-assisting gas containing a carbon oxide gas, a hydrogenated inorganic substance resulting from hydrogenation of at least a part of the inorganic substance, or a mixture of the two.

The utility model discloses an electric heating device for chemical experiments, which relates to the technical field of chemical experiments and comprises an electric heating furnace, a heat gathering cover, a heat gathering ring and a Y-shaped hoop, the heat gathering cover is a circular ring with a sealed top end, a top plate of the heat gathering cover is provided with a top hole, the side wall of the heat gathering cover is symmetrically provided with two side holes, the two side holes are concentrically arranged, and the Y-shaped hoop is arranged on the top plate of the heat gathering cover. The distance from the circle center of the side hole to a heating disc of the electrothermal furnace is smaller than the radius of the side hole; an observation hole is further formed in the side wall of the heat gathering cover, the axis of the observation hole is perpendicular to the axis of the side hole, the heat gathering ring is a circular ring with the two ends open, and the inner diameter of the heat gathering cover and the inner diameter of the heat gathering ring are the same as the outer diameter of a heating disc of the electric heating furnace. According to the electric heating device for the chemical experiment, a traditional alcohol lamp is replaced with an electric heating mode, so that environmental pollution and potential safety hazards caused by combustion of organic fuel are avoided, and a cleaner and safer working environment is provided for experimenters.

The utility model discloses a freight ship with a carbon capture system. The cargo ship is provided with a CCS system, and the CCS system comprises a carbon capture system (4) and a liquid CO2 carbon storage system; the carbon capture system is arranged on the main deck and is positioned on the rear side of the deckhouse (1); the liquid CO2 carbon storage system comprises two carbon storage cabins (5), and the two carbon storage cabins are arranged on the main deck and located on the two sides of the deckhouse respectively; a waste gas inlet pipe orifice of the carbon capture system is communicated to a waste gas outlet of the cabin, and a carbon output pipe orifice of the carbon capture system is communicated to the two carbon storage cabins. According to the cargo ship, the CCS system is arranged on the cargo ship, the CCS system receives the waste gas generated after the main engine or the auxiliary engine burns the organic fuel in the engine room and then conducts carbon capture treatment on the waste gas, and therefore carbon emission is avoided, and technical support is provided for achieving the carbon emission reduction target.

In order to suppress unnecessary ignition of an inorganic matter fuel when co-firing an organic matter fuel and the inorganic matter fuel and thereby achieve safer combustion control for a mixed fuel, a power generation system (100, 200) according to the present disclosure comprises a boiler device which comprises a combustion chamber (21) and a fuel supply unit which has a first retaining unit (11) for retaining an organic matter fuel (F1) and a second retaining unit (12) for retaining an inorganic matter fuel (F2). The fuel supply unit adjusts the state of delivery of the organic matter fuel (F1) from the first retaining unit (11) and the state of delivery of the inorganic matter fuel (F2) from the second retaining unit (12) such that a mixed fuel (F) of the organic matter fuel (F1) and the inorganic matter fuel (F2) is supplied to the combustion chamber (21) when at least one condition from among the condition (1) of being before a prescribed amount of time passes from mixture, the condition (2) of being before the mixed fuel (F) reaches a prescribed temperature, and the condition (3) of being before steam generated from the mixed fuel (F) reaches a prescribed amount is satisfied.

The application selects biological cotton as a template, and adopts a simple solution combustion method to prepare nano-porous MgCo2O4 material. The method is to use magnesium nitrate and cobalt nitrate as an oxidant, organic fuel citric acid as a reducing agent, dissolve in a certain amount of deionized water to form a mixed solution, soak the biological cotton in the mixed solution for a certain time, and calcine the soaked cotton to obtain nano MgCo2O4 with a porous structure and carbon defects. The MgCo2O4 with porous carbon defects is prepared by one-step solution combustion method, which is fully ground and mixed with AP at a certain mass ratio, and the catalytic material with excellent catalytic performance for thermal decomposition of AP is obtained through differential thermal analysis. Not only the rapid progress of AP thermal decomposition reaction is effectively ensured, but also the apparent decomposition heat of AP thermal decomposition is further improved, which creates conditions for the continuous combustion of composite solid propellant.

The utility model relates to a soot aerosol generating device. The device comprises a soot aerosol generating system and a gas supply system. The soot aerosol generating system comprises an oxidizing gas laminar flow cavity, a combustion cavity and a cooling and uniform mixing cavity; the oxidizing gas laminar flow cavity is provided with an oxidizing gas inlet and a fuel gas conveying pipe; a laminar flow plate is arranged at the lower end of the oxidizing gas laminar flow cavity; a plurality of laminar flow holes are formed in the laminar flow plate; the gas outlet end of the fuel gas conveying pipe penetrates through the oxidation gas laminar flow cavity and then extends into the combustion cavity, and a bluff body combustion head is installed at the gas outlet end of the fuel gas conveying pipe. On the basis of diffusion flame combustion processes of organic fuel under different combustion conditions, soot aerosols with different particle sizes and different concentrations can be generated in a wide range, and the generated soot aerosols are stable in physicochemical property and can be applied to multiple fields such as instrument test calibration and combustion characteristic research.

The invention relates to the technical field of catalyst preparation, and discloses a nickel-doped molybdenum carbide perovskite composite catalyst for hydrogen production and a preparation method thereof.The preparation method comprises the steps that in a three-dimensional porous conductive framework, a metal salt precursor and organic fuel which are evenly mixed in an atomic scale are rapidly dried to form a solid precursor coating, and the solid precursor coating is formed through local instantaneous energy excitation; according to the preparation method, a self-propagating solid-phase deflagration reaction is triggered, so that in-situ synthesis of the composite catalyst and integrated construction of the composite catalyst and a framework are completed under the condition that external continuous heating is not needed, intrinsic chemical energy in a precursor is utilized to realize local instantaneous high-energy synthesis and macroscopic low-temperature maintenance, and the preparation method is simple and convenient. And thermally induced sintering loss of active sites in traditional high-temperature preparation is avoided.

This invention relates to the field of metal surface treatment technology. The method first involves anodizing an aluminum alloy sheet in a sulfuric acid electrolyte to obtain a porous oxide film. Then, using this film as the cathode, ultrasonic pulse electrochemical sealing is performed in a colloidal sealing solution containing an oxidant, organic fuel, and a boron source. Utilizing the ultrasonic cavitation effect and the relaxation characteristics of the pulsed electric field, directional deposition of colloidal particles deep within the micropores is achieved. Finally, gradient heat treatment completes low-temperature drying, liquid-phase pre-melting, self-propagating reaction initiation, and densification sintering. This method optimizes mass transfer and buffers thermal stress through a boron-source molten liquid-phase medium. It utilizes an in-situ self-propagating exothermic reaction to create localized high temperatures, promoting the transformation of the pore filler into a chemically inert, dense ceramic phase. This solves the problems of high-temperature cracking in traditional hydrated sealing layers and air pockets at the bottom of conventional physical filling pores, improving the high-temperature resistance, thermal shock resistance, and long-term chemical corrosion resistance of high-strength aluminum alloy sheets such as 6061 and 7075.

To achieve safer combustion control of a mixed fuel by suppressing unwanted ignition of an inorganic fuel when mixing and igniting organic and inorganic fuels.SOLUTION: A power generation system 100, 200 according to the present disclosure includes a boiler device having: a combustion chamber 21; and a fuel supply part having a fuel holding part 11 for holding an organic fuel F1 and a fuel holding part 12 for holding an inorganic fuel F2. The fuel supply part adjusts a delivery state of the organic fuel F1 from the fuel holding part 11 and a delivery state of the inorganic fuel F2 from the fuel holding part 12 such that the mixed fuel F of the organic fuel F1 and the inorganic fuel F2 is supplied to the combustion chamber 21 when at least one of the following conditions is satisfied; (1) before a predefined period of time from the mixing; (2) before the mixed fuel reaching a predefined temperature; and (3) before the steam generated from the mixed fuel reaching the predefined quantity.SELECTED DRAWING: Figure 2

The invention relates to the field of proton exchange membrane water electrolysis, in particular to a doped and modified cobalt-based catalyst and a preparation method thereof. Cobalt and nitrate doped with metal are dissolved in a liquid solvent containing combustible organic fuel to form a combustion solution, the porous carbon substrate is soaked in the combustion solution and taken out, combustion reaction is triggered through open fire ignition, and the catalyst is obtained. In the combustion process, the violent oxidation-reduction reaction is accompanied with rapid release of a large amount of gas, and abundant micropore structures and defect sites are induced to be formed on the surface of the substrate, so that the obtained catalyst has relatively high specific surface area and activity, and the catalytic efficiency is favorably improved.

The invention relates to the technical field of coal-fired boilers, in particular to an on-line monitoring system and electronic equipment for blending combustion of organic fuel in a coal-fired boiler, and the system comprises a collection assembly which is used for collecting component data of various fuels before and after blending combustion of the boiler, and the various fuels comprise fuel, organic fuel and mixed fuel, the component data comprises a lower calorific value, moisture and ash content; the detection assembly is used for monitoring operation state change data after boiler combustion, and the operation state change data comprise the fly ash carbon content and the exhaust gas temperature; and the processing assembly is in communication connection with the acquisition assembly and the detection assembly and is used for calculating the carbon emission of the organic fuel according to the component data of the various fuels before and after the blending combustion of the boiler and the operation state change data after the combustion of the boiler. Therefore, the problems that in the prior art, in the organic fuel blending combustion process of a coal-fired boiler, due to the fact that fuel components are changeable, carbon emission metering is inaccurate and economical efficiency evaluation is difficult, the blending combustion process cannot be monitored in real time, and efficient and economical operation cannot be achieved are solved.

The present invention provides a polyimide composite phenylacetylene copper photocatalyst, belonging to the technical field of photocatalysts. The preparation method of the photocatalyst comprises: dissolving cupric chloride dihydrate in methanol, then adding phenylacetylene and triethylamine while stirring, heating reaction to obtain phenylacetylene copper; then grinding melamine and pyromellitic acid dianhydride and mixing them evenly, heating reaction to obtain polyimide; finally, mixing the prepared phenylacetylene copper, polyimide, high molecular polymer and a first solvent, and the solid collected after the reaction is the polyimide composite phenylacetylene copper photocatalyst. The polyimide composite phenylacetylene copper photocatalyst provided by the present invention can be used for the degradation of tetracycline and organic fuels in water bodies, and its catalytic efficiency is significantly better than that of existing phenylacetylene copper photocatalysts, and it has strong adaptability, and shows a stable catalytic effect in a variety of anion and cation environments and a wide pH range, and is suitable for promotion and application in sewage treatment.

The invention relates to the technical field of catalysts, in particular to an in-situ carbon capture and conversion method based on a three-way catalyst. The invention provides a design idea of in-situ state carbon capture and carbon conversion, and is realized by designing a three-way catalyst, and the three-way catalyst comprises an active component A for catalyzing organic matter steam reforming reaction, an active component B for catalyzing CO2 in-situ conversion reaction and a carrier with CO2 capture performance; the active component A is at least one of Ni, Co, Fe, Mn, Pt, Ru, Rh and Pd; the active component B is at least one of Ni, Fe, Co, Mo, Pt, Ru, Rh, Pd, Cu, Zn and Al. The method has multiple functions of catalyzing reforming of organic matter steam to produce hydrogen, and realizing in-situ capture and in-situ conversion of carbon dioxide to generate high-value organic fuel.

Provided are a nickel-nickel aluminum spinel-calcium hexaaluminate composite catalyst and a preparation method and use thereof. The method for preparing the nickel-nickel aluminum spinel-calcium hexaaluminate composite catalyst includes: mixing a nickel salt metal precursor, an aluminum salt metal precursor, a calcium salt metal precursor, and an organic fuel to obtain a mixed precursor; drying and calcining the mixed precursor sequentially to obtain a nickel aluminum spinel-calcium hexaaluminate composite precursor; and placing the nickel aluminum spinel-calcium hexaaluminate composite precursor in a flowing hydrogen atmosphere, and subjecting the nickel aluminum spinel-calcium hexaaluminate composite precursor to reduction reaction to obtain the nickel-nickel aluminum spinel-calcium hexaaluminate composite catalyst.

The invention belongs to the technical field of biomass chemical separation, and particularly relates to a furfural light component aqueous solution separation method. Comprising the following steps: S1, separating low-boiling-point organic matters in a light-component solution through a negative-pressure distillation tower; s2, extracting tower bottom liquid of the negative-pressure distillation tower to a distillation kettle, and separating furfural from water and acetic acid through atmospheric distillation; s3, condensing the low-boiling-point organic matters in the S1, and collecting the condensed low-boiling-point organic matters as organic fuel; and S4, mixing water-containing aldehyde steam produced by the distillation kettle in the step S2 with aldehyde steam produced by the furfural stock solution distillation tower, feeding the mixture into an aldehyde steam condenser to recover furfural, and collecting kettle bottom liquid as a carbon source for sewage treatment. The method provided by the invention not only solves the problems of high treatment cost and difficulty in recovery of furfural light components, but also reduces the wastewater discharge amount, and solves the problems of high COD (Chemical Oxygen Demand) in wastewater, complex organic matter components, containing aldehyde bactericidal substances and difficulty in sewage biochemical treatment.