580 results about "Co2 absorption" patented technology

The present application relates to hydrogen production technology field, especially to a kind of methanol hydrogen production method, comprising the following steps: S10: methanol water is heated and vaporized to obtain methanol water vapor;S20: methanol reforming reaction obtains hydrogen mixture gas;S30: after cooling treatment to hydrogen mixture gas, through water washing tower absorption unreacted methanol water, then, adjust the relative humidity and temperature of hydrogen mixture gas;S40: hydrogen mixture gas is input into carbon dioxide absorption tower to remove carbon dioxide;S50: after removing carbon dioxide, product hydrogen is obtained and input hydrogen tank storage to supply user end.The above-mentioned methanol hydrogen production method, by methanol water vapor reforming hydrogen treatment, obtains hydrogen mixture gas.Again, hydrogen mixture gas is purified to obtain product hydrogen with very low carbon monoxide content, with raw material easy to transport, the hydrogen purity of output is high, equipment construction cost is low, and energy consumption is low and the like advantages, reach the purpose of expanding hydrogen application range.

The present invention relates to a system, apparatus, and method for the dual-purpose functionality of capturing carbon dioxide (CO2) from atmospheric and flue gas sources and concurrently generating electrical energy. More specifically, this patent application focuses exclusively on the non-ionized hydrogen gas turbine variant of the apparatuses and methods for capturing carbon dioxide and electrical energy generating system invention. The invention embodies an integrated system designed for the efficient capture of CO2 and simultaneous production of clean electricity. To simultaneously generate electric power at maximum efficiency and capture carbon dioxide, the present invention comprises different integrated processes, integrated systems, and techniques. The present system comprises; a non-ionized hydrogen gas turbine system unit, a carbon dioxide capturing system unit, a hybrid solar Hydrogen-Oxygen gas generator system system unit and waste heat recovery system unit. Moreover, the system comprises waste-heat-based carbon dioxide absorption and waste-heat-based regeneration sub-units to power carbon dioxide capturing parts by waste heat. All the systems of units are developed, integrated, hybrid, and co-functionally working to simultaneously enhance both CO2 capture efficiency and electricity generation. Through these integrated processes, systems, and techniques, the invention aims to generate and maximize clean electrical power output while effectively capture CO2 and reducing CO2 emission impacts on the environment with a dual solution approach. The invention further includes various alternative embodiments, and invention versions for versatile application in CO2 capture and energy production fields.

The invention discloses a low-energy-consumption anhydrous nanofluid composite carbon capture absorbent as well as a preparation method and application thereof, belongs to the technical field of absorption environment protection and gas purification, and solves the technical problems of poor carbon dioxide absorption capacity, high energy consumption in a desorption process and the like of a carbon capture solvent in the prior art. The carbon capture absorbent provided by the invention comprises 25 wt%-40 wt% of an organic amine compound, 0.03 wt%-0.08 wt% of nanoparticles and the balance of an organic solvent. The preparation method of the carbon capture absorbent comprises the step of uniformly mixing the organic amine compound, the nano-particles and the organic solvent according to a specified amount to obtain the carbon capture absorbent. The invention discloses an application of the carbon capture absorbent in capturing carbon dioxide in industrial flue gas. The carbon capture absorbent provided by the invention realizes high-efficiency absorption of carbon dioxide in industrial flue gas and high-efficiency desorption at high temperature, and effectively solves the problems of poor carbon dioxide absorption capacity, high energy consumption in the desorption process and the like of the existing carbon capture solvent.

The utility model relates to the technical field of carbon dioxide capture, in particular to a gas distributor and a carbon dioxide absorption tower. The gas distributor comprises an inner cylinder, a perforated plate and a guide plate group, a gas flow channel is formed between the outer peripheral surface of the inner cylinder and the inner peripheral surface of a tower body, and a gas inlet communicated with the gas flow channel is formed in the tower body; a plurality of through holes are formed in the perforated plate, and the perforated plate is connected to the top end of the inner cylinder; the two guide plate groups are symmetrically arranged on the two sides of the inner cylinder by taking the longitudinal axis section of the gas inlet as a symmetric plane; and each flow guide plate group comprises a plurality of flow guide plates which are distributed at intervals along the outer circumferential direction of the inner cylinder body. Smoke entering the gas flow channel can be divided into a plurality of gas flows through the two flow guide plate sets, the smoke is rapidly dispersed, meanwhile, gas and liquid can be separated in the downward flowing process of the gas flows, and therefore liquid drop entrainment is reduced; and a plurality of air flows are reflected upwards by the tower bottom, penetrate through the perforated plate and are further homogenized, so that uniformly distributed air flows are formed.

The invention discloses a multi-amino absorbent for carbon dioxide capture and a method for capturing carbon dioxide from a gas mixture, and belongs to the technical field of gas separation and carbon capture, utilization and storage. The multi-amino absorbent at least comprises a first component and a second component, wherein the first component is at least one N-hydroxyalkyl-N '-hydroxyalkyl-alkane diamine; the second component is at least one organic amine different from the first component, and the organic amine contains amino groups which are not primary amino groups and does not contain steric hindrance amino groups; and a solvent and optionally an additive. The method for capturing carbon dioxide from a gas mixture includes contacting the polyamino absorbent with a gas mixture containing carbon dioxide, thereby capturing carbon dioxide. The polyamino absorbent disclosed by the invention has the advantages of low carbon dioxide absorption reaction heat in normal-pressure flue gas, high circulating absorption amount, high absorption rate, high desorption rate, low volatility and the like.

The invention relates to a long-term stable carbon dioxide absorbent and a preparation method and application thereof, preparation raw materials of the carbon dioxide absorbent comprise a quaternary ammonium salt hydrogen bond acceptor, an amine compound, an alcohol hydrogen bond donor and a reinforcing agent, and the reinforcing agent comprises sorbitol, boric acid or nano silicon dioxide. The carbon dioxide absorbent disclosed by the invention not only has excellent absorption and desorption effects, but also is creatively added with the reinforcing agent. By adding the reinforcing agent, the long-term operation stability of the absorbent under an oxygen-containing condition can be remarkably improved on the premise that the original excellent CO2 absorption and desorption performance is not influenced basically, and oxidative degradation of amine components is effectively inhibited. The composition is simple to prepare and controllable in cost, and is suitable for efficiently and stably capturing CO2 from gas mixtures such as industrial flue gas.

The invention discloses an active and passive combined observation carbon dioxide column concentration inversion method, and relates to the technical field of meteorological detection.The method comprises the steps that an active laser radar observation data set is obtained through arrangement according to month information and longitude and latitude information, and differential optical thickness is obtained through calculation based on a radar equation according to priori active laser radar observation data; according to the line-by-line integration principle, a carbon dioxide absorption cross section lookup table is constructed, priori profile data and differential optical thickness are combined, a correction coefficient matrix of a priori profile and corrected priori profile data are obtained through calculation, and according to the optimization algorithm principle, the corrected priori profile data serve as constraint, and the carbon dioxide absorption cross section is obtained. And the concentration of the carbon dioxide column is calculated based on the passive observation data, so that the inversion method provided by the invention not only comprises active laser radar observation, but also comprises the passive observation data, the active observation and the passive observation are effectively combined, more accurate prior profile information is provided, and the inversion precision is improved.

The utility model discloses an atomization rotational flow crystallization device for CO2 resource recovery, which relates to the technical field of recovery of CO2 in combustion flue gas and comprises a spray gas inlet device, a spherical cyclone and a condensation crystallization device. According to the utility model, the atomization rotational flow crystallization device is adopted to realize CO2 resource recovery of flue gas, the flue gas is firstly in full contact with atomization absorption liquid sprayed by the multi-point spraying array assembly to form a flue gas absorption liquid mixture, the flue gas absorption liquid mixture is in a rotational flow state after entering the spherical hydrocyclone, and gas-liquid phase separation is carried out, so that the CO2 resource recovery is realized. The liquid phase is condensed under the condensation action of the condensation crystallization device to obtain a solid-phase product sodium bicarbonate and a liquid-phase absorption liquid, and the liquid-phase absorption liquid is subjected to temperature control adjustment and atomization again to provide an absorption liquid for the multi-point spray array assembly; and the method can also be used for large-scale CO2 resource recovery scenes such as thermal power plants and the like, the process and equipment are stable and reliable, the operation is flexible, and the CO2 absorption conversion rate is high.

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 present invention relates to the technical field of chemical towers, specifically an efficient and energy-saving carbon dioxide absorption tower, which includes a tower body, a main structure, an adjustment structure, a support structure, a rotating packing structure, a limiting structure, and an opening and closing structure; the tower body is operated by multiple structures in coordination to achieve efficient carbon dioxide absorption. The main structure separates and captures carbon dioxide from carbon-containing gases; the adjustment structure controls the rotation of the liquid distributor, adjusts the spraying angle and centrifugal force, so that the absorption liquid is evenly distributed, improves the absorption efficiency, and reduces the wall flow phenomenon; the support structure is easy to install and has stable support, which is conducive to the installation of the rotating packing structure; the rotating packing structure is convenient for zoning packing and replacing packing, reducing the labor intensity during manual packing replacement. The limiting structure ensures the stability of the packing box, and the opening and closing structure facilitates opening the inspection port, which is convenient for maintenance, component replacement, and packing replacement, ensuring the stable operation and efficient maintenance of the equipment.

The invention relates to the technical field of chemical towers, in particular to an efficient and energy-saving carbon dioxide absorption tower which comprises a tower body, a main body structure, an adjusting structure, a supporting structure, a rotary filler structure, a limiting structure and an opening and closing structure. The tower body is formed by synergic operation of various structures, efficient carbon dioxide absorption is achieved, and the main body structure separates and captures carbon dioxide from carbon-containing gas; the adjusting structure controls the liquid distributor to rotate and adjusts the spraying angle and centrifugal force, so that the absorption liquid is uniformly distributed, the absorption efficiency is improved, and the wall flow phenomenon is reduced; the supporting structure is convenient to mount and stable in supporting, and mounting of the rotary filler structure is facilitated; the rotary packing structure facilitates partitioned packing and packing replacement, the labor intensity during manual material replacement is reduced, the limiting structure ensures that the packing box is stable, the opening and closing structure facilitates opening of the access hole, overhauling, assembly replacement and packing and material replacement are facilitated, and stable operation and efficient maintenance of equipment are ensured.

A carbon-sequestering concrete composition and method of production are disclosed. The composition comprises geopolymer binder components, aggregates, and alginate beads formed from brown algae powder through ionic gelation. The alginate beads significantly increase CO2 absorption surface area compared to algae powder, creating a matrix across the concrete surface that enhances long-term sequestration and improves durability. The beads interact synergistically with other concrete components, including geopolymers, fly ash, and ground granulated blast furnace slag, to enhance pozzolanic reactions and create additional sites for carbon dioxide capture. The alginate beads also facilitate the dissolution of minerals like olivine, further enhancing carbon capture. The composition demonstrates superior carbon sequestration capabilities, enabling sustained CO2 absorption throughout its service life. The method includes forming alginate beads, incorporating them into the concrete mixture, and allowing for initial hardening and drying processes that promote carbon dioxide absorption directly from the air.

The invention relates to a CO2 absorbent with high cycle capacity and high cycle stability and application of the CO2 absorbent, and belongs to the technical field of atmospheric CO2 pollution treatment in the environmental protection industry. The CO2 absorbent is a polyamide-amine dendritic polymer (represented by PAMAM-2 (2 + G) NH2, G is the algebra, and 2 (2 + G) is the number of terminal amino groups), wherein primary amino is used as a terminal group, alkylene diamine is used as a core, and the algebra G is 1-5. The polyamidoamine dendritic polymer provided by the invention has the advantages of high-density terminal amino groups, high CO2 absorption capacity, large circulation capacity and high circulation absorption stability.

The invention discloses a bimetallic-based catalyst for promoting CO2 absorption-desorption cycle of an alcohol amine solution as well as a preparation method and application of the bimetallic-based catalyst, an MCM-41 molecular sieve with a high specific surface area and an ordered mesoporous structure is taken as a carrier, Zr (SO4) 2 and copper acetylacetonate are loaded as bimetallic active components, the catalyst has a proper acid site and good surface acidity, and the catalyst can be applied to CO2 absorption-desorption cycle of an alcohol amine solution. The decomposition of bicarbonate ions is accelerated, the fracture bond energy of C-N is reduced, the carbon dioxide desorption performance of MEA and a water-poor system is enhanced, and the energy consumption is reduced. Compared with the prior art, the molecular sieve catalyst is synthesized by adopting a one-step hydrothermal method, and the process is simple; the catalyst is not only suitable for a traditional MEA aqueous solution, but also effective in a novel water-poor amine liquid system, and provides an energy-saving solution for different carbon capture processes. After the catalyst is subjected to five times of absorption-desorption cycles, the catalytic activity of the catalyst can still be kept at 90% or above of an initial value, and good cycle stability is shown.

The utility model relates to a system for reducing carbon dioxide emission in a coking production process. The system comprises a coke oven heating system, a flue gas desulfurization and denitrification system, a CO2 absorption and analysis system, a methanol synthesis system, a wind power / photovoltaic power generation system, an energy storage system, a water electrolysis hydrogen production system, a hydrogen storage system and a methanol storage system. According to the device, the emission of coke oven flue gas CO2 to the atmosphere can be effectively reduced, the CO2 in the coke oven flue gas can be captured and converted into a green methanol fuel, and the CO2 generated by combustion is not discharged when the green methanol fuel is used as a heating fuel of a coke oven, so that the cyclic utilization and green development of the CO2 are realized.

The invention discloses a sludge composite curing agent and application thereof in sludge curing, carbon sequestration and emission reduction, and belongs to the technical field of sludge curing. The sludge composite curing agent comprises the following components in percentage by mass: 40-60% of slag, 20-40% of carbide slag and 10-20% of biochar. The curing agent can realize curing of sludge and improve mechanical properties (such as compressive strength and the like) of the cured sludge, and in addition, the prepared cured sludge has a relatively good absorption effect on CO2, can reduce emission of greenhouse gases, and has a good promotion effect on carbon sequestration and emission reduction.

The invention discloses a system and a method for capturing cement kiln flue gas carbon dioxide based on a high-temperature flue gas waste heat regeneration technology. The system comprises a carbon dioxide absorption system and a carbon dioxide desorption system, the carbon dioxide absorption system comprises a pretreatment tower, an induced draft fan, an absorption tower, a water washing tower and a rich liquid pump; the carbon dioxide desorption system comprises a rich and lean solution heat exchanger, a lean solution pump, a desorption tower, a regenerated gas cooler, a lean solution cooler and a high-temperature flue gas waste heat recovery reboiler. Compared with the prior art, the system and method for capturing the cement kiln flue gas carbon dioxide based on the high-temperature flue gas waste heat regeneration technology can effectively utilize the cement kiln high-temperature flue gas to replace external heat source water vapor to desorb CO2, can effectively reduce the CO2 capturing cost, realizes the cooling of the cement kiln high-temperature flue gas, and improves the recovery rate of CO2. Good application prospects are realized.

The invention provides carbon sequestration concrete and a preparation method thereof, and relates to the technical field of building materials. The carbon sequestration concrete provided by the invention is prepared from the following preparation raw materials in parts by mass: 280 to 320 parts of cement, 40 to 50 parts of mineral powder, 50 to 60 parts of fly ash, 650 to 700 parts of machine-made sand, 200 to 240 parts of natural sand, 750 to 850 parts of large stone, 150 to 170 parts of small stone, 3.8 to 4.5 parts of a water reducing agent, 0.15 to 0.85 part of a retarder, 4 to 20 parts of sodium carboxylate and 180 to 200 parts of water. Sodium carboxylate is introduced as a carbon sequestration aid, carboxylate radical groups of sodium carboxylate can efficiently complex calcium ions released by cement hydration to form a soluble calcium carboxylate complex, so that the chemical reaction that carbon dioxide is mineralized into calcium carbonate is accelerated, the carbon dioxide absorption capacity of concrete is remarkably improved, and the carbon sequestration efficiency is improved. The carbon sequestration concrete provided by the invention has high carbon sequestration performance and excellent mechanical properties.

The invention discloses a low-viscosity ternary eutectic solvent as well as a preparation method and application thereof, and belongs to the technical field of CO2 absorbents. The low-viscosity ternary eutectic solvent is composed of polyamine hydrochloride, steric hindrance amine and organic alcohol, the polyamine hydrochloride has multiple active amino groups and is used for guaranteeing the high CO2 absorption rate and absorption load of the ternary eutectic solvent, the steric hindrance amine can inhibit formation of a hydrogen bond network due to the unique steric hindrance structure, and the high CO2 absorption rate and absorption load of the ternary eutectic solvent are improved. The organic alcohol can be used as a viscosity regulating agent, active hydroxyl of the organic alcohol can promote proton transfer in a CO2 desorption reaction, and the CO2 desorption efficiency is enhanced. The ternary eutectic solvent provided by the invention can still maintain a low-viscosity homogeneous liquid state after absorbing CO2, can effectively reduce the reduction of mass transfer efficiency caused by high viscosity, influence on contact with a target compound, heat transfer efficiency and the like, and solves the ubiquitous problems of overhigh viscosity and insufficient regeneration efficiency of the existing DESs system.

The invention relates to the field of medical instrument consumables, and discloses an external multifunctional anesthetic gas carbon dioxide absorber which is characterized in that an upper box body is provided with a first carbon dioxide absorption chamber, a second carbon dioxide absorption chamber, an anesthetic gas absorption chamber, a damp-heat exchange chamber, an electronic tag and a gas sampling hole; the lower box body is provided with a gas distribution chamber and a ventilation switch mechanism, the gas inlet channel is communicated with the first carbon dioxide absorption chamber, and the second carbon dioxide absorption chamber and the anesthetic gas absorption chamber are communicated with the gas outlet channel through the damp-heat exchange chamber. Carbon dioxide is absorbed during operation, and anesthetic gas is adsorbed during postoperative resuscitation; sufficient and efficient absorption of carbon dioxide can be ensured, and the color change identification degree is improved; the gas distribution chamber can effectively reduce gas resistance and conduct heat dissipation and cooling, and the damp-heat exchange chamber is arranged, so that the temperature and humidity of circulating gas are effectively regulated and controlled, and the potential dust risk of the gas is blocked.

The invention provides an intelligent design method of organic amine for carbon dioxide absorption based on machine learning based on a Kolmogorov-Arnold Networks (KAN) machine learning model and a chemical interpretation descriptor (such as MATSd, RPCG, BCUTdv-11 and the like). By screening the chemical descriptors of amine molecules and analyzing the correlation between the chemical descriptors and the upper and lower limits of a cycle period, possible combination speculation of potential organic amine chemical descriptors is finally realized. Compared with a traditional experiment-driven trial and error method, high-throughput prediction of molecular properties is realized through a machine learning technology, the descriptor speculation efficiency is greatly improved, and meanwhile, the research and development cost is reduced. By utilizing a machine learning model, chemical descriptor combinations of other potential amine molecules can be speculated, and theoretical support and technical reserve are provided for innovative development of a carbon capture technology.

The utility model discloses a carbon dioxide absorption device capable of exchanging heat and humidity, filtering and improving airflow, which comprises a tank body, a vertical partition plate is connected in the tank body and divides the tank body into a first air inlet cavity and a first air outlet cavity, the top of the tank body is further connected with a second air inlet cavity and a second air outlet cavity, and the bottom of the second air inlet cavity is communicated with the first air inlet cavity. The bottom of the second air outlet cavity communicates with the first air outlet cavity; the side faces of the second air inlet cavity and the second air outlet cavity are connected with a horizontal air inlet connector and a horizontal air outlet connector respectively, the first air inlet cavity and the first air outlet cavity are filled with carbon dioxide absorption particles, a first sponge layer is further arranged at the bottom of the tank body, and a gap is reserved between the bottom of the partition plate and the first sponge layer. The second sponge layer forms a space for heat and moisture exchange, so that water vapor and heat generated during reaction of carbon dioxide can be sufficiently retained in the space, flowing gas is sufficiently humidified and heated, and damage to the lung caused by dry and cold gas inhaled by a patient is reduced.

The invention belongs to the technical field of carbon dioxide capture and separation, and particularly relates to a two-phase absorbent for capturing carbon dioxide as well as a preparation method and application thereof, and the two-phase absorbent comprises a polyamino compound, a compound containing amino and ether bonds, a phase splitting agent and water; wherein the compound containing the amido and the ether bond comprises a monoamine compound containing the ether bond and a polyamine compound containing the ether bond; the mass ratio of the monoamine ether bond-containing compound to the polyamine ether bond-containing compound is (0.1-5): 1. Compared with a traditional organic amine absorbent, the two-phase absorbent provided by the invention has the characteristic of high CO2 absorption capacity, and meanwhile, due to the fact that the two-phase absorbent can greatly reduce the volume of a regeneration solution, the regeneration energy consumption can be greatly reduced.

The invention relates to the technical field of removal of carbon dioxide in oil gas, in particular to a preparation method of carbon dioxide PAMAM grafted ionic liquid for oil gas purification. Comprising the following steps: 1) activating carboxyl: dissolving 1-butyl-3-methylimidazole carboxylic acid in a solvent, adding dicyclohexylcarbodiimide and 4-dimethylaminopyridine, and stirring at room temperature to generate active ester; 2) grafting PAMAM: adding PAMAM dendrimer into the solution, and reacting under the protection of nitrogen; and 3) purification: removing the dicyclohexylurea precipitate through centrifugation, and dialyzing the filtrate to remove the unreacted ionic liquid and small molecule byproducts to obtain the PAMAM grafted ionic liquid. The stability and durability of the absorbent are remarkably improved, the CO2 absorption efficiency is improved, the energy consumption of the absorbent per unit mass is reduced, and the preparation method is simple and controllable, mild in reaction condition and easy for large-scale production.

The invention discloses a carbon capture system absorbent CO2 load on-line measurement device and a use method, and relates to the technical field of measurement devices.The device comprises a first liquid storage component, a second liquid storage component, a middle containing and weighing mechanism, a reaction mechanism, an air exhaust component and a controller; an outlet of the first liquid storage component is connected with an inlet of the middle containing and weighing mechanism through the first control component, and the first control component is used for controlling whether the outlet of the first liquid storage component is communicated with the inlet of the middle containing and weighing mechanism or not. An outlet of the middle containing weighing mechanism and an outlet of the second liquid storage component are connected with an inlet of the liquid inlet pipe through a second control component, and the second control component is used for controlling whether the outlet of the middle containing weighing mechanism is communicated with the inlet of the liquid inlet pipe or not and whether the outlet of the second liquid storage component is communicated with the inlet of the liquid inlet pipe or not. And the CO2 absorption capacity of the absorbent in the carbon capture system can be monitored in real time, so that an operator is helped to know the operation condition of the carbon capture system.

The invention discloses a method for preparing a high-entropy oxide carbon capture catalyst and catalyzing and desorbing CO2. The method comprises the following steps: weighing 45 to 50 mmol of Al (NO) 3.9 H2O and 85 to 90 mmol of citric acid; respectively dissolving different metal compounds in 950-1050 mL of H2O to prepare a solution, and stirring for 8-12 minutes; the molar ratio of different metal compounds is (0.5-1): (0.5-1); the obtained solution is stirred at the temperature of 65-70 DEG C until the viscous syrup-shaped consistency is achieved; transferring into a preheating oven at 190-220 DEG C for 1-2 hours to decompose the citric acid precursor, and grinding for 5-10 minutes to obtain powder; transferring the powder into a 950-1050 mL corundum crucible, and putting the corundum crucible into a muffle furnace for calcining; the temperature is set to be 750-800 DEG C, the heating rate is 2-3 DEG C / min, and the process lasts for 6-8 hours to obtain the catalyst; the method is simple in preparation process, high in safety, low in preparation raw material price and wide in application range, meanwhile, the high-entropy oxide material reduces CO2 absorption and desorption cyclic regeneration energy consumption, and the method has a good development prospect in the field of carbon capture materials.

The high-pressure water carbon dioxide absorption equipment is characterized by comprising a high-pressure container, and an absorption module and absorption liquid which are arranged in the high-pressure container, the absorption module comprises a water distribution bin 3, a waterline absorption interface and a liquid collection tank 4; the water distribution bin comprises an absorption liquid input device and a porous bottom plate 5; the waterline absorption interface comprises a plurality of linear waterlines 9 of which the horizontal included angles range from 10 degrees to 170 degrees; when the absorption liquid is barren liquid, more than 90% of the absorption liquid is water; barren liquor flows down from small holes 6 of the porous bottom plate, is received by the waterline and flows through the waterline to reach the liquid collecting tank; in the process, the absorption liquid absorbs carbon dioxide in the high-pressure rich gas to become rich liquid. The high-pressure water carbon dioxide absorption equipment has the advantages of being convenient to deploy, large in specific surface area of a waterline absorption interface, small in resistance, high in absorption capacity, capable of being started and stopped in a hot mode, short in absorption and desorption time, low in cost and environmental load by adopting water as an absorption material, stable in performance and weak in corrosion to the equipment.

The invention discloses a Pickering IL emulsion microreactor constructed on the basis of temperature-sensitive double-enzyme Janus spheres and application of the Pickering IL emulsion microreactor to enhanced catalysis of conversion of CO2 into formic acid. A Janus emulsion template method is combined with a photocuring technology to synthesize a nano-scale dual-functional temperature-sensitive Janus sphere, one half of the nano-scale dual-functional temperature-sensitive Janus sphere is a hydrophilic hydrocarbon polymer, the other half of the nano-scale dual-functional temperature-sensitive Janus sphere is a hydrophobic fluorocarbon polymer, and rapid inversion of a Pickering emulsion can be realized by utilizing temperature sensitivity. The method comprises the following steps: preparing a Janus particle hydrophilic / hydrophobic hemisphere, selectively immobilizing formate dehydrogenase FDH and carbonic anhydrase CA on the Janus particle hydrophilic / hydrophobic hemisphere to obtain a temperature-sensitive FDH-Janus-CA composite sphere, introducing a fluorine-functionalized ionic liquid to regulate and control the internal microenvironment of a microreactor, and constructing a Pickering IL emulsion microreactor. The CO2 absorption capacity is increased by 47 times compared with that of a pure water system, the formic acid yield reaches 27.5 mM and is higher than the maximum value 22.8 mM of current enzyme electrocatalysis, the storage and catalysis stability is good, and an efficient and sustainable scheme is provided for CO2 recycling.

The present invention discloses a carbon dioxide concentration prediction method based on a semi-supervised deep probability model for on-line detection of the carbon dioxide content in a carbon dioxide absorption tower. Based on the conventional probabilistic principal component regression model, the present invention simultaneously introduces the ideas of semi-supervised learning and deep learning, expands the basic probabilistic principal component regression model into the structure of a semi-supervised deep learning model, that is, proposes a new soft sensing method based on a semi-supervised deep probabilistic principal component regression model for on-line detection of the carbon dioxide concentration in a carbon dioxide absorption tower. Compared with the conventional principal component regression model, the method of the present invention can not only effectively utilize a large amount of cheap unlabeled sample information, but also deeply extract the information hidden in the process data, thereby improving the actual prediction effect of the carbon dioxide concentration.

The invention relates to a high-selectivity amine-process absorbent and a preparation method thereof, and belongs to the technical field of industrial desulfurization. The absorbent comprises a main absorbent, an organic sulfur removal accelerant, an auxiliary agent and deionized water, the main absorbent comprises alcohol amine containing a tertiary amine structure and / or steric hindrance; the alcohol amine containing the tertiary amine structure and / or the steric hindrance comprises one or more of methyldiethanolamine, diisopropanolamine, 2-(tert-butylamino) ethanol, tert-butylamino ethoxyethanol and 2-amino-2-methyl-1-propanol. According to the method, CO2 absorption is inhibited through the steric hindrance amine, the regeneration energy consumption is reduced by 40%, and the technical problems that in the prior art, the CO2 co-absorption rate is high, and the regeneration energy consumption is large are solved.