30 results about "High carbon" patented technology

The invention belongs to the technical field of CO2 electroreduction, and particularly relates to an electrolyte for inhibiting hydrogen evolution side reaction in the CO2 electroreduction process in an acidic medium, the electrolyte is an aqueous solution of an inorganic metal salt with the pH value of 1.95-2.05, cations of the inorganic metal salt are alkali metal cations, anions of the inorganic metal salt are selected from Cl <-> or a mixture of Cl <-> and SO4 < 2->, and the pH value of the aqueous solution is 1.95-2.05. And the concentration of the inorganic metal salt in the electrolyte is 1-3 mol / L. The hydrogen evolution side reaction in the CO2 electroreduction process under the acidic medium is inhibited by adopting Cl <-> or a mixture of Cl <-> and SO4 < 2->, the method has the characteristics of high carbon product selectivity and excellent hydrogen evolution side reaction inhibition effect, and the technical defects of taking SO4 < 2-> as anions in the prior art are overcome.

The invention discloses a low-carbon post-disaster rescue system based on quantum computing and an autonomous robot technology, and belongs to the technical field of post-disaster rescue. The system comprises a post-disaster information acquisition module, a data acquisition and analysis module, a quantum computing decision optimization and resource scheduling module, an autonomous robot task scheduling and execution module and a low-carbon technology model module. Performing ultra-high-speed processing and multi-target optimization decision on post-disaster environment data by adopting a mixed quantum annealing algorithm, and generating a resource scheduling and path planning scheme; the autonomous robot executes post-disaster building evaluation, material delivery and personnel search and rescue tasks based on an AI algorithm, so that the manual risk is reduced; and by combining low-energy-consumption hardware, renewable energy power supply and real-time carbon emission monitoring technologies, the carbon emission in the rescue process is reduced by more than 30%. The intelligent low-carbon rescue system solves the problems of low rescue efficiency, poor safety and high carbon emission in the prior art, is suitable for extreme post-disaster scenes with communication interruption, and provides an innovative solution for intelligent low-carbon rescue.

The utility model relates to sewage treatment equipment, in particular to a low-carbon environment-friendly buried double-layer sewage treatment device. According to the utility model, a double-layer buried structure which is longitudinally overlapped and consists of the equipment box body and the sewage treatment box body is adopted, the sewage treatment box body is positioned below a frozen soil layer, and control modules in the aeration device and the dosing device control the aeration rate and the dosing amount according to a comparison result of a measured value and a set value. The utility model effectively solves the technical problems of large occupied area, unstable water treatment and microorganism growth environment, high carbon emission and the like in the prior art, and has the advantages of small occupied area, environment friendliness, high land utilization rate, low carbon emission, stable water treatment and microorganism growth environment, energy conservation, environmental protection and the like.

The present invention relates to the technical field of waste gas purification, and specifically to a modular energy-saving tank body for multi-stage carbon capture and storage, comprising a heat recovery tank, an absorption tank, a regeneration circulation system and a carbon storage tank; the heat recovery tank is arranged above the absorption tank; the regeneration circulation system comprises a regeneration channel and a circulation component; the regeneration channel is arranged in the heat recovery tank; the circulation component is connected between the regeneration channel and the absorption tank; the carbon storage tank is connected to the compression cooling system; by recycling the heat and pressure of high-temperature and high-pressure exhaust gas, utilizing the waste heat of the exhaust gas to achieve amine liquid regeneration, utilizing the exhaust gas pressure to achieve amine liquid flow circulation, thereby saving energy consumption in the carbon capture process; and solving the problem that the amine liquid regeneration process requires a large amount of heat energy to consume, resulting in high carbon capture costs.

The invention discloses a heat treatment carburizing and quenching process. The technical solution mainly comprises the following steps: a first stage of carbon absorption: the temperature in a furnace body is controlled at 900°C, a high carbon potential is adopted, and the high carbon potential refers to a carbon potential value higher than Cp1.15%; a second stage of carbon absorption: the furnace body temperature is maintained at 900°C, and the carbon potential value is maintained at Cp1.15%; diffusion: the furnace body temperature is maintained at 900°C, a low carbon potential is adopted, and the low carbon potential is lower than Cp1%; quenching: after the workpiece is kept warm, the workpiece is quenched by oil quenching; the maximum carbon absorption time in the first stage is x, the actual value of the carbon potential value adopted in the first stage is l, x≤(l-1.15)*400, and the unit of x is min; by adopting a short time of high carbon potential value for carburizing treatment, it can be ensured that the surface hardness is not too high, and the carburizing efficiency can be accelerated and the carburizing time can be shortened.

The present invention discloses a carbon sequestration biochar and a preparation method thereof, the preparation method comprises: adding crushed biomass into a carbon sequestration agent solution to obtain a first mixture, the carbon sequestration agent comprising phosphoric acid and / or iron oxide; drying the first mixture, and grinding to obtain a powdery second mixture; and pyrolyzing the second mixture in an inert gas atmosphere to obtain the carbon-sequestered biochar. Therefore, the high-yield and high-carbon-content biochar is prepared through co-pyrolysis of phosphoric acid, ferric oxide and biomass, the carbon sequestration rate of the biochar is increased through the synergistic effect of phosphoric acid and ferric oxide, a physical barrier is formed on the surface of the biochar, the oxidation resistance and biomineralization resistance of the biochar are enhanced, and escape of a biomass pyrolysis primary product is limited; it is thus retained in the carbon matrix, resulting in more carbon retention and high yields. The biochar is applied to cement slurry, and all phosphorus and iron elements contained in the biochar are utilized to stimulate the hydration reaction of cement to improve the mechanical property.

This invention relates to a method for the simultaneous capture of carbon and phosphorus in wastewater. It addresses the problems of high aeration energy consumption, long hydraulic retention time, low phosphorus removal rate, and high carbon, ammonia, and phosphorus levels in existing wastewater treatment processes. The method utilizes the aerobic phosphorus absorption characteristics of microorganisms, employing tightly bound EPS (extracellular polymeric substances) to rapidly store and release phosphorus, capturing it in the sludge phase. This simultaneously and rapidly reduces COD and total phosphorus in the wastewater to low levels, achieving a COD removal rate of over 70%. Furthermore, the proportion of carbon captured and converted into the sludge phase reaches 30%–37%, while the proportion of organic matter oxidized to CO2 is only 22%–31%, resulting in an effective phosphorus capture rate of 70%–75%, achieving highly efficient capture and removal of both phosphorus and organic matter. Simultaneously, for effluent treatment with irrigation potential, the method achieves phosphorus capture ratio control based on efficient carbon capture, thereby obtaining effluent with low COD concentration and dynamically adjustable nitrogen-to-phosphorus ratio to meet target irrigation needs.

A high-carbon hot-rolled steel sheet and a method for manufacturing the high-carbon hot-rolled steel sheet are provided. The present invention is a high-carbon hot-rolled steel sheet having a particular chemical composition. The microstructure of the steel sheet includes ferrite, cementite, and pearlite that accounts for 6.5% or less of the entire microstructure by area fraction. Regarding the cementite, the proportion of the number of cementite grains having an equivalent circle diameter of 0.1 µm or less to the total number of cementite grains is 20% or less, the average cementite grain size is 2.5 µm or less, and the cementite accounts for 3.5% or more and 10.0% or less of the entire microstructure by area fraction. The average concentration of solute B in a region extending from a surface layer to a depth of 100 µm is 10 mass ppm or more. The average concentration of N present as AlN in the region extending from the surface layer to the depth of 100 µm is 70 mass ppm or less.

The invention relates to the technical field of air handling units, and aims to solve the technical problems that air carbon capture energy consumption is high, and no corresponding technical scheme exists in a building energy consumption system. In order to solve the technical problem, the invention provides the carbon dioxide capturing device for the air handling unit. An air inlet and an air outlet are formed in the two ends of a box body; the fan is arranged in the box body and is close to the air inlet; the capturing assembly is arranged in the box body and is close to the air outlet; the capturing assembly comprises a shell and a plurality of capturing parts; the exhaust port is communicated with the air outlet; the plurality of capturing parts are sequentially arranged in the shell from top to bottom; a solvent tank of the capturing part is arranged close to the air inlet, and a solvent is arranged in the solvent tank; the filler is arranged in the reaction section and is positioned in the solvent tank; and the gas-liquid mixing piece is arranged on the gas-liquid mixing section and is arranged in the solvent tank. According to the invention, the energy consumption is lower, the higher carbon capture efficiency can be achieved, and other harmful substances in the air can be further treated.

The present invention provides a magnetically enhanced method for capturing carbon sources in wastewater, aiming to address the problems of low carbon source resource utilization and high carbon emissions in existing wastewater treatment processes. The method comprises: adding a coagulant and a magnetic medium to wastewater to coagulate into intermediate effluent one; separating intermediate effluent one with a first magnetic separation device to obtain concentrated carbon source one and intermediate effluent two; adding a biological flocculant and a magnetic medium to intermediate effluent two to carry out a biological adsorption reaction to obtain intermediate effluent three; adding a coagulant and activated carbon to carry out flocculation and adsorption to obtain intermediate effluent four; separating intermediate effluent four with a second magnetic separation device to obtain concentrated carbon source two and effluent; subjecting concentrated carbon source one and concentrated carbon source two to anaerobically digestion to obtain methane and a digested mud-water mixture; and dispersing and recovering the digested mud-water mixture with a magnetic recovery device to obtain recovered magnetic media and sludge. This method has a high capture rate of carbon source organic matter and can achieve the effects of low-carbon energy conservation and emission reduction.

The self-circulating diversion device of the present invention is suitable for treating high and low carbon-nitrogen ratio sewage, comprising a first water inlet pipe, an aeration column, a denitrification column, an aeration plate and a water outlet pipe, with a lower anoxic zone and an upper aerobic zone formed below and above the aeration plate; the device is characterized in that: a diversion column is provided between the aeration column and the denitrification column, sludge circulates between the aeration column and the diversion column to form a small circulation reflux; sewage circulates between the aeration column, the diversion column and the denitrification column to form a large circulation reflux. The method for treating sewage with a high carbon-nitrogen ratio comprises: a). water inlet and denitrification reaction; b). aeration and self-circulation; c). aerobic reaction; d). diversion effect; e). short-range denitrification coupled anaerobic ammonia oxidation reaction; f). sewage reflux and discharge. The self-circulating diversion device and method of the present invention can realize the treatment of sewage with a high carbon-nitrogen ratio or a low carbon-nitrogen ratio, and can realize the self-circulation flow of sewage without an external power source, thereby reducing energy consumption in the sewage treatment process.

The invention discloses a microalgae polyculture method for adjusting supply of an organic carbon source through dissolved oxygen content feedback and application, and belongs to the technical field of microalgae culture, the method comprises the following steps: an autotrophic stage: introducing air into a culture reactor, and enabling cells to reach a certain concentration through autotrophic growth; in the polyculture stage, ventilation is stopped, dissolved oxygen is monitored in real time, starting and stopping of an organic carbon source pump are dynamically adjusted, and mixed nutrition is achieved; and continuous production: setting a dilution rate, continuously harvesting, supplementing the culture medium, and continuously operating. The addition of an organic carbon source is accurately controlled through the concentration feedback of dissolved oxygen, the photosynthetic and heterotrophic metabolism rates are matched, no net oxygen production (stable DO) is ensured, oxygen self-balance in the system is realized, and finally, the conversion rate of carbon is greatly increased and can reach 0.85 or above. According to the method, the microalgae productivity is remarkably improved under the condition of no gas exchange, and a new thought is provided for large-scale culture with low energy consumption and high carbon efficiency.

The application discloses a high-carbon alcohol waste lye resource treatment method, and belongs to the technical field of waste lye treatment. The method comprises the following steps: water quality homogenization of the waste lye; acidification treatment of the homogenized waste lye by adding waste acid liquid; separation of organic phase and water phase of the waste lye in a chromatograph; ultraviolet light catalytic oxidation treatment of the organic phase; and delivery of the treated organic phase to a sewage treatment system as an additional carbon source. The waste lye treated by the method has significantly enhanced biodegradability; meanwhile, a new type of carbon source is obtained, which can be used in the AO process of the sewage treatment system, and compared with traditional additional carbon sources such as acetic acid and sodium acetate, can more effectively promote the denitrification of microorganisms, has better effluent water quality, has stronger denitrification effect, reduces the cost of three agents of the sewage field, realizes the resource utilization of the waste lye, and has certain economic benefits.

The present application relates to carbon emission processing technical field, especially in a kind of based on multiple linear regression's building full life cycle carbon emission calculation method.The present application includes the following steps: obtaining the carbon emission data of each stage of building by BIM model, adopts Latin hypercube sampling method and fuzzy clustering algorithm to extract key characteristic variable, such as material carbon emission coefficient, energy consumption intensity etc.;Carbon emission is modeled using multiple linear regression model, and carbon emission prediction model is constructed;Model parameters are optimized by differential evolution algorithm;Finally, the total amount of carbon emission is calculated, and the key influence factor of high carbon emission stage is analyzed by causal reasoning algorithm, optimization strategy is proposed and analysis report is generated, accurate prediction and effective optimization building full life cycle carbon emission are realized.The present application can not only accurately evaluate building full life cycle carbon emission, but also provide strong support for the optimization decision of carbon emission.

The invention relates to a selective desulfurization absorbent, system and process for blast furnace gas with a high carbon-sulfur ratio. The absorbent comprises a main agent and an additional additive accounting for 0.01-0.8% of the total mass of the main agent, the main agent comprises the following components in percentage by mass: 5-15% of an alcohol amine absorbent, 30-50% of a physical solvent, 25-45% of a catalytic promoter and the balance of water; wherein the physical solvent contains a sulfur-containing functional group or an ether-containing functional group; the catalytic promoter comprises a sterically hindered amine or a cyclic amine. According to the invention, the alkylol amine absorbent with stable performance is matched with the physical solvent with similar compatibility characteristics and the catalytic promoter with steric hindrance effect, and efficient dissolution, intraphase mass transfer and transfer hydrolysis of organic sulfur are remarkably promoted through a steric hindrance effect-group synergy action mechanism; a synergistic reaction path of dissolution-transfer-catalytic hydrolysis-chemical absorption is formed, so that the effects of selectively and highly desulfurizing and reducing the co-absorption amount of carbon are achieved, and the energy consumption of a subsequent process is favorably reduced.

The invention relates to the technical field of data processing, in particular to a high-carbon-nitrogen-ratio pollutant full-cycle treatment process evaluation method and system, and the method comprises the steps: building a multi-objective optimization model; monitoring an environmental load contribution rate through real-time life cycle list data, and dynamically determining an environmental index weight; coupling operation parameters influencing upstream and downstream unit load balance are determined as model input; solving the model by adopting a hotspot sensing particle swarm optimization algorithm, wherein the algorithm introduces a dynamic penalty term related to an environment index weight and a contribution rate into a fitness function; and generating an operation strategy decision report according to the optimal solution set. According to the method, the defects of static state and low efficiency of the existing evaluation model are overcome, the real-time balance of the environmental and economic targets and the rapid generation of the operation strategy are realized, and the perception capability and the real-time guidance value of the evaluation method to the environmental risk are obviously enhanced. The method is suitable for guiding operation scheduling and parameter optimization of a high-carbon-nitrogen-ratio pollutant treatment process.

Provided are a bacterium having a high carbon yield of carbon dioxide and a metabolic enzyme gene-disrupted strain of the bacterium. Also provided is a method for isolating carbon dioxide from bacteria having a high carbon yield. Also provided are a method for producing, culturing, and using a metabolic enzyme gene-destroyed strain of the bacterium. According to the present invention, by disrupting a gene encoding an enzyme capable of generating a metabolic reaction of carbon dioxide in a bacterium having a high carbon yield of carbon dioxide, for example, the environmental burden caused by the culture of the bacterium can be reduced and / or the bacterium can be changed to a state more suitable for the production of a substance.

The present disclosure relates to the technical field of chemical engineering, and specifically discloses a method for removing oxygenated compounds from a Fischer-Tropsch oil having a high carbon number. A reaction-extraction combined process is used in this method for removing oxygenated compounds from a Fischer-Tropsch oil having a high carbon number, wherein the Fischer-Tropsch oil (C5-C20) is firstly subjected to alkaline washing with an alkaline aqueous solution to convert acidic substances into water-soluble salts, while fats are hydrolyzed and removed through water washing; then the Fischer-Tropsch oil is subjected to a primary extraction with a carbonate-based extractant to remove alcohols and esters therein, and subsequently subjected to a secondary extraction with propylene carbonate to remove ketones and aldehydes impurities therein, thereby achieving the object of effectively removing oxygenated compounds in the Fischer-Tropsch oil. After extraction, the content of the oxygenated compounds in the Fischer-Tropsch oil may be down to 1-60 ppm, and the yield of oil product may be kept 90% or more.

The application belongs to the technical field of magnetic separation control, and specifically discloses a high-carbon ferrochrome tailing multi-stage crushing and recovery magnetic separation control method. The method realizes forward control of nodes by linking multi-stage crushing and multi-stage magnetic separation processes. Specifically, the method comprises the following steps: judging the change requirement of each stage of crushing process based on the real-time index of the magnetic separation process; dynamically setting the discharge particle size reference range for the process with the change requirement; judging whether to trigger the crushing equipment adjustment by comparing the real-time discharge particle size with the reference range; when the tailing grade shows an abnormal upward trend, further determining the abnormal responsibility subject based on the real-time feed grade. Finally, according to the classified disposal of the responsibility subject, the application effectively changes the after-the-fact remedy into the before-the-fact prevention, significantly reduces the metal loss risk, improves the resource recovery efficiency and the stability of the control effect, and improves the overall control efficiency and control effect of the complex working condition.

The method comprises the following steps: S1, putting a reaction solution into a high-voltage electrode reaction kettle in which air is exhausted, filling carbon dioxide gas, and sealing the high-voltage electrode reaction kettle; s2, setting the initial voltage, frequency and duty ratio of a direct-current pulse power supply, starting a reaction, and adjusting the voltage in the reaction process to maintain stable discharge plasma until the system reaches a supercritical state; s3, in the supercritical state, continuously adjusting the voltage to maintain the target temperature or the target pressure intensity, then setting the target time, and stopping the reaction after the reaction reaches the target time; and S4, after the high-voltage electrode reaction kettle is cooled, collecting a product, performing analysis and detection, adjusting reaction parameters based on an analysis and detection result, repeating the steps S1 to S4, and optimizing reaction conditions. According to the method, directional conversion of carbon dioxide to high-value alcohol compounds can be realized, the selectivity of a main product is remarkably improved, and a novel and reliable means is provided for directional synthesis of high-carbon chain hydrocarbon alcohol.

The invention relates to the technical field of ceramic membrane separation, in particular to membrane separation equipment for high alcohol purification, which comprises a connecting seat, a plurality of cavities are formed in the connecting seat, ceramic membrane tubes are fixedly connected in the cavities, connecting shafts are arranged in the ceramic membrane tubes, the connecting shafts are movably connected in the cavities, and the connecting shafts are movably connected in the cavities. The outer side of the connecting shaft is movably connected with a connecting disc; a second transmission mechanism drives a connecting shaft to rotate, the connecting shaft rotates to drive a connecting disc to rotate, the connecting disc rotates to drive a plurality of brushes to rotate, a first transmission mechanism drives a traction mechanism to move, so that the connecting disc ascends and descends, and the inner wall of a ceramic membrane tube is cleaned through the brushes which move in a lifting mode. The liquid guide transmission mechanism drives the dirt scraping mechanisms to move and make contact with the brush, when the two dirt scraping mechanisms clamp the brush between the two dirt scraping mechanisms, the dirt scraping mechanisms move to scrape off dirt attached to the surface of the brush, and cleaned impurities are prevented from being attached to the surface of the brush.

The invention relates to a pretreatment device, and discloses a pretreatment device for testing rare gas isotopes in an oil-gas mixture. The device comprises a first separation assembly (2) and a second separation assembly, the first separation assembly (2) and the second separation assembly are connected and communicated through a gas path, the first separation assembly (2) comprises a filtering structure (21) and a cyclone separator (22), a filtering channel (21a) and a drainage channel (21b) are formed in the filtering structure (21), and the cyclone separator (22) is communicated with the filtering channel (21a). Fluid filtered by the filtering channel (21a) is suitable for entering the cyclone separator (22) for cyclone separation, gas obtained through cyclone separation enters the second separation assembly through the drainage channel (21b), and water vapor, high-carbon light hydrocarbon components and media are separated out through the second separation assembly. The device can effectively separate an oil-gas mixture, and the subsequent detection precision is improved.

This invention provides processes and systems for converting biomass into high carbon biogenic reagents that are suitable for a variety of commercial applications. Some embodiments employ pyrolysis in the presence of an inert gas to generate hot pyrolyzed solids, condensable vapors, and non-condensable gases, followed by separation of vapors and gases, and cooling of the hot pyrolyzed solids in the presence of the inert gas. Additives may be introduced during processing or combined with the reagent, or both. The biogenic reagent may include at least 70 wt %, 80 wt %, 90 wt %, 95 wt %, or more total carbon on a dry basis. The biogenic reagent may have an energy content of at least 12,000 Btu / lb, 13,000 Btu / lb, 14,000 Btu / lb, or 14,500 Btu / lb on a dry basis. The biogenic reagent may be formed into fine powders, or structural objects.

Providing a process and system for converting biomass into high-carbon bioreagents suitable for a variety of commercial applications. Some embodiments employ pyrolysis in the presence of an inert gas to produce hot pyrolysis solids, condensable vapors, and non-condensable gases, followed by separation of the vapors and gases and cooling of the hot pyrolysis solids in the presence of an inert gas. Additives may be introduced during the process or combined with the reagent, or both. The bioreagent may contain at least 70 wt%, 80 wt%, 90 wt%, 95 wt%, or more total carbon on an anhydrous basis. The bioreagent may have an energy content of at least 12,000 Btu / lb, 13,000 Btu / lb, 14,000 Btu / lb, or 14,500 Btu / lb on an anhydrous basis. The bioreagent may be formed into a powder or structure.

The present invention discloses a solid slow-release carbon source and its preparation and application. The method includes: adding octadecyl acrylate to a polyvinyl alcohol solution, heating and stirring at 95 °C, adding a carbon source and fully mixing and reacting; slowly dropping tetraethyl orthosilicate into the mixture through a peristaltic pump; removing bubbles by ultrasonic treatment, pouring into a mold and naturally cooling to room temperature, freezing and forming at -20 °C, naturally thawing at room temperature, and repeating the above freezing-thawing operation, demolding and putting it into a saturated boric acid solution containing CaCl2 for chemical cross-linking at 4 °C; washing with ultrapure water, drying to constant weight at 60 °C and then storing in a sealed manner to isolate oxygen. The present invention solves the problems in the prior art of high carbon release rate, poor slow-release effect, and inability to control the COD concentration in water bodies. The carbon release rate can be stabilized at 0.22 mg / (g·h), and it is used for denitrification and nitrogen removal in water bodies mainly containing nitrate nitrogen, which is not only efficient and stable, but also can better control the COD concentration of the effluent.

The application provides a carbon dioxide and fresh water trapping system and a trapping method thereof, and the system comprises an adsorption fan, a water adsorption runner, a first condenser, a carbon adsorption runner, an air heater, a first regeneration fan, a second regeneration fan, a second condenser, a water storage tank and an air storage tank, the water adsorption runner and the carbon adsorption runner are both divided into an adsorption area and a regeneration area, ambient air sequentially passes through the adsorption fan, the water adsorption runner adsorption area, the first condenser, the carbon adsorption runner adsorption area, the air heater, the first regeneration fan, the carbon adsorption runner regeneration area, the second regeneration fan and the water adsorption runner regeneration area, and finally forms high-carbon steam, the high-carbon steam is condensed by the condenser, and the water and the carbon dioxide are respectively stored in the water storage tank and the air storage tank, the application first proposes a set of system for directly trapping water and carbon dioxide from air, realizes an uninterrupted trapping and regeneration process, and the system has the advantages of simple structure and convenient use.

The invention belongs to the technical field of carbon capture, and particularly relates to flue gas treatment carbon capture equipment which comprises a peripheral cylinder, and a peripheral ring is fixed to the top of the peripheral cylinder; the trapping mechanism is arranged in the inner part, and the trapping mechanism traps carbon dioxide in a filtering manner; the cleaning mechanism is arranged in the middle of the trapping mechanism, and the cleaning mechanism cleans the carbon dioxide in a friction mode; the trapping mechanism comprises a trapping cylinder, and the trapping cylinder is fixed between the peripheral cylinder and the peripheral ring in a penetrating manner; the trapping ring is fixed at the top of the trapping cylinder; the plurality of port plates are fixed on the inner wall of the trapping cylinder. According to the invention, the filter screen is spirally surrounded between the trapping cylinder and the inner surrounding cylinder, and flue gas is discharged from the side surface of the inner surrounding cylinder through the spiral filter tank, so that the flue gas is uniformly discharged from the side surface of the inner surrounding cylinder and is in contact with the filter screen, the filter screen uniformly and quickly filters the flue gas, and the carbon trapping device has the advantage of high carbon trapping efficiency.

The invention relates to the technical field of buildings, in particular to a carbon sequestration concrete filled steel tube reinforced mixed structure and a preparation process thereof, which can obviously improve the strength and stability of the structure and enhance the bearing capacity and deformation resistance of the structure. The durability of the structure is effectively improved, the invasion speed of water and harmful substances is reduced, and the carbonization resistance, freezing and thawing resistance and chemical corrosion resistance are improved; good environment-friendly performance is achieved, carbon dioxide is absorbed and fixed through the carbon fixing material, and carbon emission is reduced; construction is convenient, steps are clear, operation is easy, and application and popularization are easy; and various parameters can be flexibly adjusted according to engineering requirements, different design requirements are met, and high engineering adaptability and flexibility are achieved. Therefore, the problems of high carbon emission and insufficient mechanical properties in the prior art are solved.