8results about How to "Increase absorption rate" patented technology

The invention discloses a low-partial-pressure CO2 catalytic absorption method and application, and belongs to the technical field of gas separation. The low-partial-pressure CO2 catalytic absorption method comprises the following steps: S1, providing a nitrogen-doped activated carbon catalyst; the nitrogen-doped activated carbon catalyst is prepared by taking activated carbon as a carbon source and modifying the activated carbon through a nitrogen-containing reagent; s2, providing an organic amine solvent; and S3, under the action of the nitrogen-doped activated carbon catalyst provided in the S1, enabling flue gas to react with the organic amine solvent provided in the S2. Compared with the existing CO2 absorption method, the method provided by the invention has the advantages that the CO2 absorption rate, the CO2 absorption capacity and the CO2 capture efficiency can be remarkably improved, so that low-cost CO2 capture is realized.

This invention provides an absorbent for capturing carbon dioxide and a method for capturing carbon dioxide. By volume percentage, the absorbent comprises 20-60% glycine salt aqueous solution, 10-50% triethylene glycol monomethyl ether, 5-10% ethylene glycol, and the balance being water. This absorbent combines the advantages of glycine salt systems, such as low volatility, non-toxicity, safety, and better antioxidant degradation resistance, while avoiding the risk of solid precipitates forming after absorption by the glycine salt system, which could cause pipeline blockage.

The application belongs to the field of agricultural biotechnology, and particularly relates to a gene mutant with high potassium absorption and utilization efficiency and application thereof. GhAKT1bD The gene mutant A is obtained by deleting the 111th-114th bases of the wild-type gene, and the gene mutant B is obtained by deleting the 112th-114th bases of the wild-type gene. GhAKT1bD The gene mutant A is obtained by deleting the 111th-114th bases of the wild-type gene, and the gene mutant B is obtained by deleting the 112th-114th bases of the wild-type gene. GhAKT1bD The gene mutant A is obtained by deleting the 111th-114th bases of the wild-type gene, and the gene mutant B is obtained by deleting the 112th-114th bases of the wild-type gene. The transgenic plant provided by the application has excellent low-potassium stress resistance compared with the wild-type plant. In addition, the transgenic plant provided by the embodiments of the application has growth advantages, higher stem potassium content and root potassium content compared with the wild-type plant under the conditions of sufficient potassium supply (2.5 mM) or severe potassium deficiency (0.03 mM).

The invention discloses a multi-zone carbon capture device which comprises an inlet flue section, a tower body and an outlet flue section, and the interior of the tower body is divided into a plurality of zones which operate independently through at least one partition plate; the inlet flue section is configured to selectively introduce flue gas into at least one subarea; the outlet flue section is configured to selectively exhaust flue gas from at least one of the partitions. Compared with a circular tower, the internal support length of the multi-partition tower type is shorter, and the multi-partition tower type has lower deflection during bearing. Compared with a square tower, the multi-partition tower type flue gas has better flow field distribution. Along with the change of the flue gas amount, the number of the working partitions can be dynamically adjusted, so that efficient utilization of resources is achieved.

This invention discloses an intermittent connection process between a suspended core and the diaper body. This process relates to the field of absorbent products and comprises the following steps: a) intermittent adhesive spraying, b) adhesive scraping, and c) core bonding. The absorbent core is bonded to the bottom film of the absorbent product through adhesive segments in regions one, two, and three, thereby creating an intermittent connection between the absorbent core and the body. This results in grooves that facilitate urine drainage and cavities that store urine at the bottom of the diaper body. This not only increases the absorption rate of the absorbent core but also increases its absorption area, providing excellent fixation for the absorbent core. The process has fewer steps and is simple to operate, meeting the production needs of large-volume diaper production.

The application discloses a direct air carbon capture system and method, and relates to the technical field of carbon capture, and in particular to a direct air carbon capture system and method. The system comprises a lye absorption and regeneration integrated device, a heat pump system, a ripener, a calcining furnace, a condenser separator and a compressor. The lye absorption and regeneration integrated device is composed of a shell, an arched biomass carbon material gas absorption plate, a lean liquid tank, a particle reaction tank, a filter and a solution pump. CO2 absorption occurs on the surface of the biomass carbon material gas absorption plate, and due to capillary action, siphon phenomenon caused by the height difference between the lean liquid tank and the particle reaction tank and ion concentration difference, directional transfer of lean liquid and rich liquid is realized. The heat pump system is used for recovering water vapor in decarburized air and CaCO2 primary preheating. CaO ripening reaction heat is used for CaCO3 secondary preheating. The application utilizes the pore structure of the biomass carbon material gas absorption plate, capillary phenomenon and siphon effect to improve CO2 absorption rate and save pump power. The application utilizes the heat pump system to save water resources. The application utilizes system waste heat to reduce system energy consumption.

The application discloses a kind of low-temperature desorption and high cycle stability absorption liquid for capturing carbon dioxide and its preparation method and application, it is related to gas separation and purification technical field, including main absorption component, auxiliary agent and solvent;Main absorption component is at least one of N-ethyl piperazine, 1-methyl piperazine and N-hydroxyethyl piperazine;Solvent is at least one of 1-dimethylamino-2-propanol, diethylaminoethanol and N,N-dimethylethanolamine;Auxiliary agent is selected from composite antioxidant and desorption promoter.The multi-component synergistic design of the application makes the system maintain high capture efficiency under the premise, with excellent low-temperature desorption performance and long-term cycle stability, ensures that amine liquid long-term stable and efficient operation, reduces the operating cost caused by amine liquid degradation, equipment corrosion and high energy consumption, with good application prospect.

The invention discloses a carbon capture device and method, which are used for integrating CO2 absorption and desorption processes of carbon capture in the same device, the device at least comprises: an absorption unit arranged at the upper part of the device; in the absorption unit, the absorption slurry is in contact with carbon-containing gas from top to bottom so as to carry out gas-liquid mass transfer under a high-pressure condition; the solid phase part of the absorption slurry is powder of a supported ionic liquid, and the ionic liquid is an amino-containing ionic liquid; the desorption unit is arranged below the absorption unit and is isolated by a liquid seal; under the vacuum condition, the absorbed slurry is subjected to CO2 desorption in a desorption unit, the desorbed slurry is recycled after being subjected to gas-liquid separation, and CO2 is discharged. According to the invention, the gas-liquid mass transfer efficiency can be effectively improved and the absorption rate of CO2 can be increased through the nano-micro interface strengthening effect; absorption and desorption are integrated into the whole device, different areas are isolated in a liquid sealing mode, and the functions of high-pressure absorption and vacuum desorption can be achieved in the same device.