21 results about "High carbon" patented technology

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 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 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 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.