50results about How to "Increase regeneration rate" patented technology

The invention relates to a smoke gas purification system with an integrated function of desulfuration, denitration and demercuration and a purification process, which are used for treating SOX, NOX and Hg in smoke gas and recycling sulphur and Hg in smoke gas. A uniform gas distribution plate and a flow guide plate are arranged at a smoke gas inlet in the middle of an adsorption tower, a contracting nozzle structure of a central flow collection pipe outlet in the lower section of the adsorption tower is connected with an NH3 inlet, and by the structure improvement, the adsorption tower has the advantages of uniform distribution and mixing of gas, and the smoke gas purification efficiency and the utilization rate of active coke are also improved. Due to a ring-shaped partition plate gas extracting structure of an active coke regeneration tower, no residue is formed in the tower when the regeneration tower desorbs gas; meanwhile, a mercury capturing device is arranged outside the active coke regeneration tower. The characteristic of low content of mercury in smoke gas is taken into account in the smoke gas purification process, active coke is designed for gathering Hg till Hg is saturated and then is regenerated by an acid washing method, and Hg is recycled or subjected to refilling. The smoke gas purification system has the advantages of simultaneous removal of various pollutants, good effect of uniformly distributing smoke gas and high utilization rates of heat energy and by-products, and complete gas exhaust of the regeneration tower is guaranteed.

The invention discloses a complex iron desulfurizing agent for wet-oxidation hydrogen sulfide removal. The complex iron desulfurizing agent contains the following components: water-soluble ferrite, an inorganic base, a water-soluble cobalt salt, an organic complexing agent and water, wherein the weight percent of the iron ion is 0.5-6wt%; a molar ratio of the metal ions in the inorganic base to the iron ion is 0.8-1.2; a molar ratio of the cobalt ion to the iron ion is 0.01-0.1; a molar ratio of the organic complexing agent to the sum of mole numbers of the cobalt ion and the iron ion is 1.2-3.0; the components of the complex iron desulfurizing agent additionally include piperazine and polyethylene glycol; the weight percent of the piperazine and the mixture is 1-5wt%; and the weight percent of the polyethylene glycol and the mixture is 0.1-2wt%. The complex iron desulfurizing agent for wet-oxidation hydrogen sulfide removal, disclosed by the invention, achieves the effects of enhancing the oxygen utilization rate in the regeneration process, reducing the air amount, improving the regeneration rate and reducing the fan energy consumption in the regeneration process and is low in cost.

The invention discloses a DPF regeneration system and a control method for optimizing thermal management, and relates to the technical field of post-treatment of diesel engine exhaust. Adjust the working state of the diesel engine; open the NTP valve when the diesel engine is stopped, inject NTP into the DPF, and the active material oxidizes the PM in the DPF to achieve the purpose of regenerating the DPF; during the operation of the diesel engine, the temperature control system is controlled by the control system. The DPF system is cooled, and the temperature of the DPF is appropriately reduced; when the DPF is shut down to regenerate, the heat medium is used as a heat source, so that the regeneration process proceeds smoothly. By using the temperature control system, the temperature of the DPF can be maintained in an appropriate temperature range during the regeneration process of the diesel engine, so as to achieve the purpose of regenerating the DPF smoothly and efficiently; The high-temperature impact of the exhaust gas temperature on the DPF prolongs the service life of the DPF.

The invention provides non-aqueous decarburization solution for capturing carbon dioxide in a mixed gas, and belongs to the technical field of capturing of carbon dioxide gas. The invention relates to a non-aqueous decarburization solution, wherein a main absorption component is N-ethyldiethanolamine, and a solvent is N,N-diethylethanolamine. Because the non-aqueous decarburization solution has a high boiling point and low viscosity, uses tertiary amine capable of participating in CO2 absorption as the solvent, and uses secondary amine with a fast absorption speed and a high absorption amount, and easy to regenerate as the main absorption solvent, the absorption capacity, purification degree and desorption speed for carbon dioxide are increased, the temperature range of the reaction is expanded, the volume of a regeneration tower is reduced, the energy consumption of the regeneration is greatly reduced, and the equipment investment and operation cost are reduced. The non-aqueous decarburization solution provided by the invention is mainly used for capturing carbon dioxide in the tail gases of multiple chemical reactions, the tail gases of steel plants and cement plants, ore decomposition gas, combustion flue gas, natural gas, city gas and marsh gas, and has wide application prospect.

The invention discloses technology for full cellular biosynthetic deoxyribonucleoside triphosphate, which takes deoxyribonucleoside monophosphate dNMP and phosphate anions as a substrate and saccharide as a power supplier, and uses permeable yeast cells for reaction in the presence of chemical effect substances to prepare the deoxyribonucleoside triphosphate. According to the technology, the theory of full cellular catalysis and metabolic engineering is used and the chemical effect substances are adopted to regulate and control a metabolic flow, so that a high effective power self-coupling and regeneration system is established, and high effective preparation of the deoxyribonucleoside triphosphate is finally realized. The novel technology for the full cellular biosynthetic deoxyribonucleoside triphosphate overcomes the disadvantages of the conventional production process of the deoxyribonucleoside triphosphate, and has the characteristics of simple process, high conversion, low cost and light pollution, and the like.

The invention discloses a method for regenerating water glass sand by using calcium carbide slag, which belongs to the technical field of casting waste sand regeneration and includes water glass casting waste sand, calcium carbide slag clear liquid and carbide slag raw materials. The regeneration method specifically includes preparing calcium carbide slag powder, Water glass casting waste sand broken screen, magnetic separation, soaking, regeneration, dehydration, washing, drying and other steps. In the present invention, the calcium carbide slag and the calcium carbide slag clear liquid, which are wastes discharged from the preparation of acetylene, are used to efficiently regenerate the water glass sand, and the chemical reaction between the calcium carbide slag and the water glass is used to complete the regeneration of the water glass sand at the same time without consuming fresh water resources. While saving resources, the existing waste industrial products are recycled, and because the regeneration process is a physical and chemical synergistic reaction, the regeneration speed is higher than that of fresh water, and the energy consumption is lower, creating good economic benefits.