946 results about "Co2 adsorption" patented technology

The invention provides a heteroatom-doped porous carbon material for carbon dioxide adsorption as well as a preparation method and application thereof. The preparation method comprises the following steps: S1, drying and crushing waste biomass to obtain raw material powder; s2, mixing the raw material powder with an activating agent, and fully grinding to obtain a mixture of the raw material powder and the activating agent powder; s3, dissolving one or more heteroatom sources in hot deionized water to obtain a hot solution, pouring the mixture of the raw materials and the activator powder in the step S2 into the hot solution, and heating and stirring until water is evaporated; s4, performing high-temperature carbonization on the mixture finally obtained in the step S3 in an anoxic environment; and S5, cleaning and drying the product in the step S4 to obtain the heteroatom-doped porous carbon material. The heteroatom-doped porous carbon material disclosed by the invention has a highly developed pore structure, and the porous carbon prepared by taking the waste biomass as a precursor is used as a carbon dioxide adsorbent, so that high-value utilization of waste biomass resources is realized.

The invention provides low-carbon fuel blending coupling combustion test equipment and method, and the equipment comprises a blending fuel feeding system which is used for blending solid-phase, liquid-phase and gas-phase low-carbon fuels with fossil solid fuels or other solid fuels in proportion; the one-dimensional combustion furnace is used for coupling combustion of the blended fuel; the flue gas treatment system is used for carrying out cooling, dust removal, desulfurization, denitration and carbon dioxide adsorption and trapping treatment on flue gas generated by coupling combustion; the control cabinet is used for controlling the stable and safe operation of the whole experiment platform; the low-carbon coupling combustion test system and method and the coupling combustion low-carbon technology have the beneficial effects that the coupling combustion condition that the actual boiler is internally mixed with low-carbon fuel is simulated by adopting a feeding and conveying mode of accurately controlling the blending combustion proportion, and the low-carbon coupling combustion test system and method and the coupling combustion low-carbon technology are formed; the device has multiple innovative functions of controlling the blending combustion ratio, efficiently coupling combustion, comprehensively purifying flue gas, adsorbing and trapping carbon dioxide, saving energy, reducing carbon and the like.

The utility model provides a cyclically-operated carbon dioxide trapping device. A shell of the cyclically-operated carbon dioxide trapping device is connected with an air inlet pipeline, an air outlet pipeline and an exhaust pipeline; the shell is internally provided with a reaction box body, the reaction box body is provided with two reaction cabins, and each reaction cabin is internally provided with a fan, a heater and a carbon dioxide adsorption structure; the air inlet pipeline is connected to the air inlets of the two reaction cabins and is close to the draught fan, the draught fan is used for sucking indoor air into the corresponding reaction box bodies and enabling the indoor air to flow through the heater and the carbon dioxide adsorption structure, and the carbon dioxide adsorption structure is used for adsorbing carbon dioxide in the flowing air; the heater is used for heating flowing air and desorbing carbon dioxide adsorbed in the carbon dioxide adsorption structure; and the two reaction cabins alternately perform adsorption and desorption of carbon dioxide. The device is convenient to operate and can continuously and efficiently control the concentration of indoor carbon dioxide.

An article for joule heating is described, including a three-dimensional substrate on and / or in which a pyrolyzate of a phenolic resin or polymer forms an electrically conductive carbon network. Such articles may be incorporated in structured materials applications, which may include support, sorbent, and or catalyst components. Also described are methods of fabricating such articles and structured materials, and apparatus comprising same, and methods of use of such articles and structured materials and apparatus for conducting material transformation processes requiring input of heat for their performance, such as CO2 adsorption, methane pyrolysis for hydrogen and carbon production, hydrogen-assisted conversion of CO2 to hydrocarbons, including catalytic conversion of CO2 to olefins, catalytic conversion of CO2 to propane (liquefied petroleum gas), and catalytic conversion of CO2 to renewable natural gas, reverse water gas shift reaction, steam ethane cracking, propane cracking, steam methane reforming, and dry methane reforming.

The invention relates to a fly ash-based MOFs adsorption-catalysis material integrated preparation method, and belongs to the field of solid waste treatment and resource utilization. The material takes industrial solid waste fly ash as a matrix, and is prepared by the following steps: firstly, carrying out alkali modification and silane coupling agent surface activation treatment on fly ash to form a high-activity matrix; then loading a metal organic framework (MOFs) on the surface of the activated fly ash through an in-situ synthesis process to form a porous composite carrier; the integrated material with CO2 adsorption and catalytic conversion functions is further prepared through impregnation of a copper-based active component and a high-temperature calcination process. According to the invention, the problems of high energy consumption, high cost and low comprehensive utilization rate of fly ash of the traditional CO2 capture and utilization technology (ICCU) are solved, high-valued resource utilization of industrial solid waste and efficient capture and conversion of CO2 are synchronously realized, and the method has dual values of environmental protection and economy.

The invention belongs to the technical field of metallurgical industry gas resource utilization, and particularly relates to a method and system for preparing synthesis gas from blast furnace gas. The method comprises the steps that a CO2 adsorbent is heated to the first temperature to conduct CO2 adsorption on blast furnace gas, the adsorbent after CO2 adsorption is obtained, the CO2 adsorbent is CaO, and the first temperature is smaller than or equal to 650 DEG C; the adsorbent after CO2 adsorption is heated to a second temperature for CO2 desorption, obtained CO2 and H2 are catalyzed by a copper-based catalyst under the second temperature condition to be subjected to a reverse water-gas shift reaction, synthesis gas is obtained, and the second temperature is higher than or equal to 700 DEG C. The method provided by the invention realizes effective separation and conversion of carbon dioxide in blast furnace gas to obtain a synthesis gas product, thereby realizing closed cycle of carbon resources, remarkably improving the economical efficiency of blast furnace gas, and realizing efficient utilization of energy.

The invention discloses a polyamine type porous polymer as well as a preparation method and application thereof, and belongs to the technical field of synthesis of porous organic polymers. The specific method comprises the following steps: dispersing beta-mercaptoethylamine, a photoinitiator and a porous framework polymer with carbon-carbon double bond connection in a polar organic solvent; under the ultraviolet light initiation condition, the photoinitiator excites beta-mercaptoethylamine to generate sulfydryl free radicals, and the sulfydryl free radicals and the porous framework polymer with carbon-carbon double bond connection are subjected to an addition reaction; and washing and drying the product after the addition reaction to obtain the amino-modified polyamine porous polymer. The preparation method provided by the invention is rapid in reaction, extremely high in reactant utilization rate and simple in post-treatment, and the prepared polyamine type porous polymer has rich adsorption sites, good stability and excellent carbon dioxide adsorption performance, and can be applied to the field of carbon capture and the like.

An integrated system for adsorbing carbon dioxide (CO2) in the air is described. The system includes: an adsorber that adsorbs the CO2 from the air using a sorbent; and a desorber, coupled to the adsorber, that desorbs the adsorbed CO2 from the sorbent (e.g., in an energy-efficient manner, such as without using steam) into an output of the system. In contrast with other approaches, the system may continuously move the sorbent, as an ensemble, through the system. Thus, the system may concurrently (and continuously) perform adsorption and desorption. Moreover, the sorbent may include a cost-effective and robust free-standing bulk solid. This may allow the sorbent to be used in multiple cycles or transits through the system. Furthermore, after the multiple cycles, the sorbent may be replaced while the system is operating, and the used sorbent may be recycled for subsequent reuse in the system.

The invention belongs to the field of carbon dioxide adsorbents, and particularly relates to a carbon dioxide adsorbent, a preparation method and application thereof. The disclosed carbon dioxide adsorbent comprises: active particles of a core-shell structure; the core body of the active particle comprises at least one of CaO or MgO; a shell of the active particles comprises at least one of Ca (OH) 2 or Mg (OH) 2. The carbon dioxide adsorbent provided by the invention has a core-shell structure, the shells of the active particles can capture CO2 at room temperature to about 300 DEG C, and the cores of the active particles can capture CO2 at 300 DEG C to 700 DEG C, so that the carbon dioxide adsorbent has CO2 capture performance in a wide temperature range.

Provided is a carbon dioxide capturing apparatus comprising: a reaction tower including a carbon dioxide adsorption unit or a carbon dioxide absorption unit which adsorbs or absorbs carbon dioxide from exhaust gas; desorption tower connected to the reaction tower and including an adsorbent heating unit for heating an adsorbent circulating inside or an absorbent heating unit for heating an absorbent circulating inside; an adsorbent or absorbent which circulates in the reaction tower and the desorption tower and alternately adsorbs and desorbs carbon dioxide or alternately absorbs and desorbs carbon dioxide; and a heat exchange unit which desorbs carbon dioxide from the adsorbent on which carbon dioxide is adsorbed or the absorbent in which carbon dioxide is absorbed, through heat exchange between the adsorbent on which carbon dioxide is adsorbed and the heated adsorbent, or between the absorbent in which carbon dioxide is absorbed and the heated absorbent, wherein the adsorbent on which carbon dioxide is adsorbed and the heated adsorbent, or the absorbent in which carbon dioxide is absorbed and the heated absorbent are transferred in a co-current flow manner.

The invention relates to the field of separation and filtration, in particular to a soda lime-based carbon dioxide adsorption and filtration device, which comprises a box body, the box body is communicated with a gas inlet channel and a gas outlet channel, and an adsorption and filtration assembly positioned in the box body is communicated between the gas inlet channel and the gas outlet channel; through gradient cooperation of the multiple layers of adsorption beds and the multiple stages of adsorbent particles, the overall stacking density of the adsorbent particles can be effectively reduced, meanwhile, the utilization rate of the adsorbent particles is increased, the overall adsorption efficiency is improved, the service life of the adsorbent is prolonged, and the more uniform adsorption effect is achieved; and through the turbulent flow frame between the two adjacent adsorption beds, the blown-in air flow is prevented from directly impacting the adsorption beds, and the generation of dust in the use process is effectively reduced.

The invention discloses surface hydroxylation modified mesoporous SiO2, a preparation method of the surface hydroxylation modified mesoporous SiO2 and a SiO2-based solid amine adsorbent. The preparation method comprises the following steps: dispersing waste glass powder into a first alkali solution, and reacting under a heating condition to obtain a sodium silicate solution; the concentration of the first alkali solution is 20-30 g / L; introducing carbon dioxide into the sodium silicate solution to obtain mesoporous SiO2; dispersing the mesoporous SiO2 into a second alkali solution, and carrying out heating treatment, so as to obtain surface hydroxylation modified mesoporous SiO2; and the concentration of the second alkali solution is 0.2-3 g / L. The glass powder is subjected to silicon extraction in an alkali dissolution mode to obtain the Na2SiO3 solution, the silicon recovery rate of 92% can be achieved, the prepared surface hydroxylation modified mesoporous SiO2 can be used as a carrier, PEI is loaded through a physical dipping method, the SiO2-based solid amine CO2 adsorbent is prepared, and on the basis of maintaining the high CO2 adsorption capacity, the CO2 adsorption capacity is greatly improved. The long-term stability of the solid amine adsorbent in an O2-containing environment can be maintained, and the service life and the long-term cyclic adsorption performance of the solid amine adsorbent are greatly improved.

The invention belongs to the technical field of industrial solid waste resource utilization and high-temperature CO2 adsorption materials, and provides a lithium orthosilicate-based CO2 high-temperature adsorbent prepared on the basis of synergistic treatment and synergism of various industrial wastes, and a method and application of the lithium orthosilicate-based CO2 high-temperature adsorbent. The preparation method comprises the following steps: separating, washing and drying to obtain a SiO2-containing hybrid solid product, mixing the SiO2-containing hybrid solid product with lithium battery derived lithium hydroxide, anhydrous citric acid and deionized water, drying to obtain a lithium silicate precursor, and finally roasting to obtain the lithium orthosilicate-based CO2 high-temperature adsorbent. Under the condition that the temperature window is 650-720 DEG C, the adsorption capacity of the adsorbent for high-concentration carbon dioxide can reach 18% or above, and part of the temperature can reach 30% or above. Most of the raw materials are selected from industrial wastes, and the preparation method has the characteristics of low cost and suitability for continuous production of process steps, and has industrial production prospects.

The invention provides an industrial electrode for synthesizing urea through electro-catalysis C-N coupling and a preparation method and application of the industrial electrode, and belongs to the field of urea synthesizing.The industrial electrode for synthesizing urea through electro-catalysis C-N coupling comprises a conductive substrate and an electro-catalysis material coating the surface of the conductive substrate; the electrocatalytic material comprises a magnesium oxide modified copper oxide catalyst, and MgO nanoparticles and CuO nanoparticles in the magnesium oxide modified copper oxide catalyst are in contact with each other to form a heterostructure. The magnesium oxide modified copper oxide catalyst is used as an electro-catalysis material, MgO nano-particles and CuO nano-particles in the catalyst material are in contact with each other to form a heterostructure, after MgO is introduced, the CO2 adsorption and activation capacity is improved, CO and NHx coupling is promoted, and the urea Faraday efficiency is improved. The industrial electrode shows excellent selectivity and stability in the process of electro-catalytic synthesis of urea.

The invention belongs to the technical field of CO2 adsorbents, relates to carbon-based solid amine, and discloses a preparation method of a carbon-based solid amine CO2 trapping adsorbent, which comprises the following steps: S1, dissolving organic amine in a methanol solution to form a methanol amine solution; s2, adding the mesoporous carbon-based carrier into the methanol amine solution, and stirring at a low speed to evaporate methanol; and S3, drying in a vacuum oven to obtain the carbon-based solid amine CO2 trapping adsorbent. The CO2 trapping adsorbent prepared by the invention has the advantages of large CO2 adsorption capacity, strong selectivity, good stability and reproducibility, effectively reduces the CO2 trapping cost, and has huge advantages in the aspect of carbon trapping.

The invention discloses a porous organic polymer material, a preparation method of the porous organic polymer material and application of the porous organic polymer material in CO2 adsorption and photocatalytic preparation of H2O2, and belongs to the technical field of organic framework materials. The porous organic polymer material is prepared by the following method: adding a compound A and benzo [1, 2-B: 3, 4-B ': 5, 6-B'] trithiophene-2, 5, 8-trialdehyde into a solvent, and uniformly mixing; then adding a catalyst, and carrying out polymerization reaction under the condition of inert gas to obtain a polymerization reaction product; and washing and drying the reaction product to obtain the porous organic polymer material. The porous organic polymer material prepared by the invention is novel in structure, not only has excellent photoinduced charge separation and transmission efficiency, shows better advantages in the aspect of photocatalytic preparation of H2O2, but also has excellent CO2 adsorption performance, thereby having important value and significance for further expansion and application of organic framework materials.

The invention relates to high-pore-volume nitrogen-doped activated carbon for capturing carbon dioxide and a preparation method of the high-pore-volume nitrogen-doped activated carbon, and belongs to the technical field of activated carbon. In order to solve the problem that high nitrogen content and high pore volume of nitrogen-doped activated carbon are not matched, the invention provides a preparation method of high-pore-volume nitrogen-doped activated carbon for carbon dioxide capture. In the preparation process of the activated carbon, an activating medium composed of a carbon source and an activating agent and a nitrogen-containing precursor are respectively laid in different mutually isolated areas in a crucible, so that the carbon deposition effect of the nitrogen-containing precursor is weakened, the high pore volume of the activated carbon is maintained, the nitrogen content of the activated carbon is improved, and the high CO2 adsorption capacity and the high CO2 / N2 adsorption selectivity are obtained at the same time. When the high-pore-volume nitrogen-doped activated carbon prepared by the method is applied to the field of industrial CO2 trapping, high CO2 adsorption capacity can be obtained, and high CO2 purity in desorbed gas can be guaranteed.

The invention discloses a method for producing active lime by calcining limestone, which comprises the following steps of: crushing limestone raw ore, cleaning to remove mud, and removing magnetic components by using a magnet to obtain limestone powder with the particle size of less than 3mm; then adding limestone powder into a 1-2 mol / L sodium hydroxide solution with the weight 3-5 times that of the limestone powder, carrying out ultrasonic oscillation treatment, filtering to obtain a solid I, washing to be neutral, stirring and dispersing in a dispersion liquid, carrying out microwave irradiation under the condition of an alternating magnetic field, and filtering to obtain a solid II, so as to obtain pretreated limestone powder; freezing the pretreated limestone powder under a static magnetic field condition to obtain frozen limestone powder; and finally, mixing and calcining the pretreated limestone powder and carbon dioxide adsorption balls with the particle size of 10-15mm, and separating to remove the carbon dioxide adsorption balls, thereby obtaining the active lime. The obtained active lime is high in calcium oxide content, few in impurities, high in activity degree and good in stability.

The invention provides a preparation method and device of a carbon dioxide adsorption material and electronic equipment, and the method comprises the following steps: obtaining material property data of a plurality of candidate materials, the plurality of candidate materials comprising a plurality of metal organic framework materials and a plurality of porous carbon materials; screening the material property data by using a performance prediction model and a multi-objective optimization algorithm to select an optimal composite material combination from the plurality of candidate materials, the optimal composite material combination being a combination of a metal organic framework material and a porous carbon material; and synthesizing the optimal composite material combination by using a preset preparation method to obtain the carbon dioxide adsorption material. By adopting the preparation method and device of the carbon dioxide adsorption material and the electronic equipment, the problems of low material selection efficiency and high research and development cost of the carbon dioxide adsorption material in the prior art are solved.

The invention discloses a graded porous guanidyl resin-based CO2 adsorption material and a preparation method thereof, and belongs to the technical field of polymer synthesis. The prepared adsorption material is of a composite spherical structure and has a multi-stage pore channel structure including micropores, mesopores and macropores, the CO2 adsorption capacity of the material is effectively improved by introducing the hierarchical pore channel structure, the molecular diffusion resistance can be remarkably reduced by introducing hierarchical pore channels, and the contact area of an adsorbent and CO2 molecules is increased, so that rapid adsorption is achieved; and the pyridyl, the polyamino compound and the guanidyl have relatively strong alkalinity and chemical affinity to CO2, and through surface functional modification, active sites on the surface of the material are remarkably increased, so that the adsorption capacity and selectivity of CO2 are further improved.

The invention provides a pavement coating material with tail gas degradation and CO2 adsorption capacities and a preparation method thereof. Epoxy resin is used as a matrix, polyethyleneimine is loaded on fumed silica through an impregnation method to form a CO2 adsorbent, nano titanium dioxide and a long afterglow material are compounded to realize photocatalytic degradation of tail gas pollutants at the same time, the coating curing time is optimized by controlling the addition amount of polyethyleneimine, and the water resistance is ensured; the catalytic activity in a dark environment is maintained through the long afterglow material, and the coating can degrade NOx, CH and CO and adsorb CO2 under weak light and strong light. By balancing the proportion of adsorption and photocatalysis components, the limitation that a traditional material is single in function, high in light dependence and the like is broken through, efficient tail gas purification and CO2 adsorption are still maintained under the dim light / dark condition, the material is suitable for changeable scenes such as the urban road peak period, and a comprehensive solution is provided for road area pollution treatment and carbon neutralization targets.

The invention discloses a carbon dioxide adsorption material and a preparation method and application thereof.The preparation method comprises the steps that in the presence of a surfactant, aminophenol and aldehyde are subjected to a condensation polymerization reaction in an alcohol-water mixed system, organic amine is added in the condensation polymerization reaction process, a reaction is conducted, and modified phenolic resin sol is prepared; adding nano oxide with surface hydroxyl into the modified phenolic resin sol, uniformly dispersing, and aging under a heating condition to prepare modified gel; carrying out solvent replacement on the modified gel in the aging solution to obtain aged gel, and drying the aged gel to obtain the carbon dioxide adsorption material. According to the method disclosed by the invention, the volume shrinkage of the aerogel material can be obviously reduced when normal-pressure drying is adopted, the problem that the gel prepared by the existing method is easy to collapse in structure and the like when being dried at normal pressure can be avoided, and better adsorption performance and the like are taken into account while the cost is reduced.

The invention discloses an S / N co-doped microporous carbon adsorbent as well as a preparation method and application thereof, and belongs to the technical field of adsorbents. According to the method, firstly, melamine is utilized to enable waste polyvinyl chloride to be subjected to dechlorination reaction at room temperature to generate a microporous carbon material precursor, then decomposition and structural recombination of the microporous carbon material precursor are promoted through high-temperature pyrolysis, the generated local stress further increases the number of carbon defects, the carbon defects are in a high-energy state at high temperature, and the carbon defects are in a high-energy state at high temperature. And gas escape or further chemical reaction is easy to occur. Meanwhile, the activating agent is decomposed at high temperature and releases a large amount of small molecule gas to promote generation of carbon skeleton pores, and non-carbonizable PVC is converted into a high-value nitrogen-doped carbon material. And finally mixing thiourea, modifying the microporous carbon material by introducing a sulfur element, and further optimizing the polarity of the carbon surface by heteroatom doping, so that the CO2 adsorption performance is remarkably improved, and the sulfur-functionalized porous carbon adsorbent with high microporosity is constructed.

The invention relates to a renewable industrial flue gas carbon dioxide adsorbent and a preparation method thereof. The method comprises the following steps: S1, mixing alkali metal, an aluminum oxide precursor, silicon oxide and a first solvent, or mixing an alkali metal solution, the aluminum oxide precursor, the silicon oxide and an optional second solvent, and then molding the mixed material to obtain microsphere particles; s2, mixing the microsphere particles and organic amine, and carrying out first loading treatment and drying treatment to obtain an organic amine loaded material; s3, roasting the organic amine-loaded material, mixing the obtained roasted material with a carrier material, and carrying out second loading treatment, so as to obtain the carbon dioxide adsorbent, the carrier material is selected from at least one of polystyrene-polyacrylic acid-polyethylene oxide, polymethyl methacrylate-b-polystyrene, zirconium oxide and a porous ceramic material. The carbon dioxide adsorbent is relatively high in adsorption capacity and relatively good in selectivity, reproducibility and stability; and large-scale industrial production and application are facilitated.

The invention discloses an adsorbent for trapping industrial waste gas carbon dioxide as well as a preparation method and application thereof, and relates to the technical field of carbon dioxide trapping. According to the technical scheme, the preparation method comprises the following steps: S1, activating rice straws or wood chips with KOH to prepare porous biochar; s2, performing in-situ growth of a Cu-BTC MOF layer on the surface of the biochar through a hydrothermal method; s3, grafting a polyethyleneimine-polyethylene glycol copolymer on the surface of the charcoal modified by the Cu-BTC MOF layer; and S4, mixing the material obtained in the step S3 with the nano ZnO / carbon quantum dot compound to obtain the adsorbent for capturing industrial waste gas carbon dioxide. According to the prepared adsorbent, the CO2 adsorption capacity is larger than 1.8 mmol / g in the high-humidity (85% RH) environment, and compared with a traditional amino adsorbent, the CO2 adsorption capacity is greatly improved; after 1500 times of circulation, the CO2 adsorption capacity retention rate is greater than 90%, and the high-efficiency and low-consumption carbon capture adsorbent is constructed.

According to one embodiment, provided is a carbon dioxide absorption-release device including a pair of electrodes, an aqueous electrolyte, a first electrolyte flow path, and a second electrolyte flow path. Each of the pair of electrodes include a porous composite, where the porous composite contains an electro-conductive component and a porous material on the electro-conductive component, and the porous material includes a reactive moiety for electrochemical proton transfer. In the first electrolyte flow path, one of the pair of electrodes contacts the aqueous electrolyte. In the second electrolyte flow path, the other of the pair of electrodes contacts the aqueous electrolyte.

The invention belongs to the technical field of molecular sieves, and particularly relates to a preparation method and application of a hydrophobic modified molecular sieve. The preparation method of the hydrophobic modified molecular sieve comprises the following steps: (1) activating a molecular sieve to obtain a pre-activated molecular sieve; and (2) mixing the pre-activated molecular sieve, a silane coupling agent and a solvent for reaction to obtain the hydrophobic modified molecular sieve. The hydrophobic modified molecular sieve has the beneficial effects that the pore channel structure of the hydrophobic modified molecular sieve and the pore channel structure of the molecular sieve before modification are not greatly changed, the good pore channel property of the molecular sieve is maintained, and the moisture interference resistance of the molecular sieve during carbon dioxide adsorption is improved. The molecular sieve hydrophobic modification method is simple and convenient to operate, low in cost and suitable for large-scale production.

The application belongs to the technical field of preparation of carbon aerogel materials, and particularly relates to a nitrogen-doped carbon aerogel and a preparation method and application thereof. A carbon aerogel with a three-dimensionally interconnected microporous structure is prepared by using two precursors with low cost and rich in nitrogen content, namely acrylamide and aniline. Firstly, a three-dimensionally interconnected polyacrylamide medium with high absorbability is prepared; then, by virtue of the high absorbability, the reaction solution of aniline is fully absorbed in a low-temperature state, and the aniline is uniformly dispersed and orderly polymerized under a freezing condition, so that the problem of agglomeration of traditional polyaniline preparation and difficulty in dispersion are solved; finally, an activating agent is used to activate and pore-form the aerogel. The carbon aerogel has high nitrogen content, rich in a large number of basic active sites and a three-dimensionally interconnected microporous structure, and thus the CO2 adsorption capacity is significantly improved.

The invention discloses a system and a method for preparing low-carbon olefin through carbon dioxide adsorption and in-situ oxidative dehydrogenation. The invention provides a system and a method for integrating carbon dioxide capture and in-situ oxidation low-carbon alkane (ethane / propane) dehydrogenation, a bifunctional material is composed of an adsorbent and a catalyst, and capture of carbon dioxide and in-situ oxidation low-carbon alkane dehydrogenation can be realized in the same reaction tower, so that the highest one-way carbon dioxide conversion rate can reach 100%, and the conversion rate of carbon dioxide can reach 100%. And meanwhile, the ethylene yield reaches 26%. According to the method, the problems of additional product separation and product gas recycling caused by low carbon dioxide conversion efficiency in the prior art are avoided, and effective heat management is realized, so that the process of integrating carbon dioxide capture and preparing low-carbon olefin by oxidizing low-carbon alkane has more economic advantages.

The invention relates to a solid amine-containing inorganic fiber corrugated paper forming method, which comprises: uniformly mixing solid amine and an auxiliary agent to form a jelly, respectively coating the front surface and the back surface of inorganic fiber paper by using a rolling manner, carrying out drying curing treatment, and carrying out corrugated roller pressing shaping to obtain the solid amine-containing inorganic fiber corrugated paper. The inorganic fiber corrugated paper containing the solid amine is prepared. According to the forming method of the inorganic fiber corrugated paper containing the solid amine, provided by the invention, the loading capacity and the adhesive force of the solid amine on the inorganic fiber paper can be effectively improved. The inorganic fiber paper containing solid amine provided by the invention can be used for preparing a carbon dioxide adsorption rotating wheel or a rotating drum for smoke carbon capture and direct air carbon capture, so that the energy consumption and the cost of carbon capture are reduced.