1125 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 relates to a preparation method of an amino-functionalized metal organic framework material and application of the prepared material to separation of CO2 / N2 and CO2 / CH4. The preparation method comprises the following steps: dissolving adenine and copper nitrate trihydrate in N, N '-dimethylacetamide to obtain a first mixed solution; dissolving carboxylic acid and potassium carbonate in deionized water to obtain a second mixed solution; and adding the second mixed solution into the first mixed solution, carrying out stirring reaction, and carrying out vacuum drying on an obtained solid product to obtain the amino-functionalized metal organic framework material. The amino-functionalized metal organic framework material prepared by the invention has high CO2 adsorption selectivity and adsorption capacity, and also has good acid-resistant, alkali-resistant and water-resistant stability. The amino-functionalized metal organic framework material prepared by the preparation method disclosed by the invention is applied to industrial CO2 adsorption separation and has an excellent separation effect.

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 invention discloses a carbon dioxide adsorbent and a preparation method and application thereof.The preparation method comprises the following steps that a biological shell material is cleaned and then dried, the pretreated biological shell material is ground, and coarse shell powder is obtained; sequentially calcining and grinding the coarse shell powder in a protective atmosphere to obtain shell micro powder; mixing the shell micro powder with a magnesium oxide solid phase, calcining in a protective atmosphere, and grinding to obtain the carbon dioxide adsorbent. According to the invention, a solid-phase mixing method is adopted, and the marine biological waste with specific content and magnesium oxide are mixed, so that the mutual cooperation and mutual synergism among the raw material components can be fully exerted, the element composition and microstructure of the adsorbent material can be effectively regulated and controlled, and by virtue of the preparation method which is easy to operate and low in cost, the adsorbent material can be prepared. The obtained novel carbon dioxide adsorbent can improve the CO2 adsorption capacity and cycle stability of MgO, and can stably maintain high carbon dioxide adsorption rate and adsorption capacity for a long time.

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 relates to a method for evaluating the cyclic adsorption performance of a carbon dioxide adsorbent, which comprises the following steps: S1, performing multiple adsorption and desorption tests on a to-be-tested adsorbent after impurity removal treatment in a thermogravimetric analyzer to obtain a thermogravimetric cycle curve; s2, parameters E1, F1, Hi and Ii are obtained according to the thermogravimetric cycle curve and a formula; s3, obtaining a first fitting curve and a second fitting curve; s4, evaluating the performance of the adsorbent to be tested according to one or more of E1, Ei, H2, I2, F1, Fi, the first fitting curve function and the second fitting curve function. By adopting the method, a relatively standard evaluation method for evaluating the performance of the adsorbent based on the thermogravimetric analysis test can be established, a plurality of adsorbents can be qualitatively analyzed by selecting proper parameters according to actual use conditions, proper adsorbents are selected by comparing qualitative analysis results, and the method is wide in use range and high in applicability.

The utility model relates to the technical field of combustors, in particular to a combustor mixed gas backflow pipeline and backflow system, which comprises a storage tank, a communication pipeline and a carbon dioxide adsorption tank, a partition plate is welded and fixed in the middle of the storage tank, and the output end of one end of the storage tank is communicated with the communication pipeline. The end, away from the storage tank, of the communicating pipeline communicates with a carbon dioxide adsorption tank, a flange plate is fixed to the joint of the carbon dioxide adsorption tank and the communicating pipeline, and a tank cover is erected on the top of the upper end of the carbon dioxide adsorption tank; the device has the beneficial effects that the whole storage tank is divided into an upper independent space and a lower independent space by the partition plate, fuel gas is divided into a pre-purification state and a post-purification state, carbon dioxide cannot be combusted, the carbon dioxide in redundant mixed flue gas needs to be filtered and then guided out, the requirement for sufficient combustion of the mixed flue gas is met, and the fuel gas is purified. And sufficient combustion of energy is improved, secondary pollution to the atmosphere is reduced, the energy utilization rate is increased, and the current environmental protection requirement is met.

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 relates to the technical field of dry ice tail gas recovery, and discloses a tail gas recovery device for preparing dry ice, which comprises a tail gas pipe, the left end of the tail gas pipe is communicated with a tail gas outlet of dry ice production equipment, the right end of the tail gas pipe is communicated with an adsorption tower, and a carbon dioxide adsorption part is fixedly mounted in the adsorption tower. Carbon dioxide in tail gas is adsorbed through a carbon dioxide adsorption part in an adsorption tower, then the carbon dioxide is collected through a collecting cover, collected carbon dioxide gas flow enters a communicating pipe along an output pipe and then is guided into a compressor after being pressurized by a booster pump, the carbon dioxide gas is compressed through the compressor, and the compressed carbon dioxide gas flows into the tail gas. Compared with the mode that tail gas is introduced into a compressor, the mode that the tail gas is used as a raw material for preparing dry ice can purify the tail gas and increase the content of carbon dioxide, and then the high-temperature liquid state compressed by the compressor can meet the requirement for manufacturing the dry ice.

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 utility model belongs to the technical field of carbon dioxide capture, and discloses a carbon dioxide adsorption device capable of supplementing organic amine on line, which comprises a shell, a bottom partition plate, a solid amine adsorbent, a liquid filling pipe and a spray pipe, the solid amine adsorbent is stacked on the horizontally arranged bottom partition plate, and a vertical axial spiral blade is arranged on the bottom partition plate. The spiral blade separates the solid amine adsorbent to form a spiral flow channel, the liquid filling pipe penetrates through the center of the spiral blade, the spray pipes are evenly arranged along the upper surface of the spiral blade, the spray pipes spray an organic amine solution to the solid amine adsorbent, the liquid filling pipe is communicated with all the spray pipes, and an inlet in the upper end of the liquid filling pipe is communicated with a liquid storage tank of the organic amine solution through a solution input pipe. And the solution input pipe is connected with an input pump. According to the utility model, the flow length of carbon dioxide gas passing through the solid amine adsorbent can be increased under the condition that the volume is limited, the solid amine adsorbent can be continuously impregnated in the adsorption device, regeneration equipment does not need to be additionally purchased, excessive impregnation liquid does not need to be used, and the cost is reduced.

To provide an asphalt plant capable of efficiently consuming concrete sludge by adsorbing carbon dioxide, and an asphalt mixture.SOLUTION: An asphalt plant 1 has a burner for burning a carbon-containing fuel, a dryer having the burner at one end of a drum and heating and drying aggregate containing water by hot air, and an exhaust path for guiding exhaust gas containing carbon dioxide generated in the dryer, dust, and water derived from the aggregate to the outside through a dust collector, an exhauster, and a chimney. A carbon dioxide adsorbent lump 80 obtained by molding a dehydrated cake of concrete sludge into a predetermined shape is installed inside the exhaust path 51 on the upstream side of the dust collector in the exhaust direction. Accordingly, the dust collector collects the sludge powder from which the surface layer of the carbon dioxide adsorbent lump 80 is peeled off due to the contact with the dust contained in the exhaust gas in the exhaust path 51. As a result, the concrete sludge can be efficiently consumed by adsorbing carbon dioxide.SELECTED DRAWING: Figure 6

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 adsorbents, and provides a boron nitride-based material and a preparation method and application thereof.The method comprises the following steps that boric acid, melamine and water are mixed and then added into a metal salt solution, and a precursor is obtained; and pyrolyzing the precursor in a protective atmosphere to obtain the boron nitride-based material. The porous boron nitride fiber material loaded with the alkaline metal ions is prepared through a pyrolysis method, and the porous boron nitride fiber material is rich in structural defects, low in density, excellent in chemical inertness, high in oxidation resistance and free of toxicity, so that the porous boron nitride fiber material is suitable for being used as a carrier of the metal ions; therefore, the carbon dioxide adsorption capacity of the pure boron nitride material is further improved. According to the boron nitride material loaded with the alkaline metal ions, the electrostatic interaction and adsorption energy of the boron nitride material to carbon dioxide are enhanced, so that the adsorption of the boron nitride material to the carbon dioxide is promoted.

The invention discloses a coal underground efficient gasification method based on calcium-based catalyst injection and a carbon dioxide geological storage method. The calcium-based powder material adopts high-purity limestone, wherein the content of calcium oxide is greater than 50%. The method comprises the following steps: crushing a limestone raw material into micron-scale to nano-scale powder, putting the powder into a stirring device, mixing the powder with a coal underground gasification injection agent to obtain a suspension fluid, and injecting the suspension fluid into a coal underground gasification furnace which is in production; calcite minerals in limestone are decomposed into calcium oxide under the coal underground gasification high-temperature effect, and the calcium oxide adsorbs water and carbon dioxide to the surface of coal coke to generate a synergistic gasification reaction at the same time. Wherein the injectant and the calcium-based powder suspension fluid are prepared by adopting a foam suspension device provided with an ultrasonic generator, so that the suspension stability of the calcium-based powder in the suspension fluid is improved. According to the invention, the calcium-based material is injected into the coal underground gasification furnace as the catalyst, so that the moisture, carbon dioxide and carbon in the coal are subjected to co-gasification reaction, the coal underground gasification reaction rate and gasification efficiency can be obviously improved, the environmental pollution is reduced, and the maximum utilization of resources is realized.

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.

A method for regenerating a bis(iminoguanidine) (BIG) carbon dioxide sorbent, the method comprising: (i) providing a carbonate or bicarbonate salt of the BIG carbon dioxide sorbent, and (ii) directly contacting the carbonate or bicarbonate salt of the BIG carbon dioxide sorbent with steam heated to a temperature within a range of 80°C-130°C to result in regeneration of the BIG carbon dioxide sorbent with simultaneous conversion of the carbonate or bicarbonate anions into carbon dioxide, wherein the regenerated BIG carbon dioxide sorbent is substantially removed of carbonate or bicarbonate and may optionally contain one or more adduct water molecules. In some processes, the regenerated BIG carbon dioxide sorbent is dissolved in water condensing from the steam during the contacting step to form an aqueous solution of the regenerated BIG carbon dioxide sorbent.

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 utility model discloses a preparation device of a dry quenching coal slag adsorbent for CO2 adsorption, which relates to the technical field of carbon dioxide adsorbent preparation equipment and comprises an ammonification tower, a filtering device, a reaction washing device, a granulation forming device and a drying device which are sequentially connected from front to back, the ammonification tower comprises a water vapor outlet in the top, an ammonification reaction part in the middle and an ammonification coal slag outlet in the bottom from top to bottom, and the water vapor outlet is connected with a wastewater storage tank; the ammoniation reaction part comprises a plurality of slope-shaped ammoniation steps which are arranged from top to bottom, the topmost ends of the ammoniation steps are connected with dry quenching coal slag inlets, each ammoniation step consists of an ammoniation table top and ammonia water pipes, one ammonia water pipe is arranged between every two ammoniation table tops, and the ammonia water pipes are communicated with the ammoniation table tops. The ammonia water pipe is provided with a plurality of ammoniation nozzles for spraying ammonia water to the ammoniation table top, an ammonia water inlet of the ammonia water pipe is fixed on a shell of the ammoniation tower, and the ammonia water inlet is connected with an external ammonia water pipeline; and the ammoniated coal slag outlet is connected with the filtering device.