10results about How to "Reduce ammonia concentration" patented technology

This invention provides a method for manufacturing dibenzylamine. Benzonitrile and a reaction solvent are mixed in a high-pressure reactor, and a hydrogenation reaction is carried out under the action of a ruthenium-iron bimetallic catalyst supported on cerium oxide to obtain a crude product. After cooling and filtering the catalyst, the crude product is purified by distillation to obtain the final dibenzylamine. This method features mild reaction conditions, high atom utilization, and meets the requirements of clean and green production.

The invention discloses a sour soup formula for pig breeding and a preparation method. The sour soup formula is prepared from the following components: drinking water, corn flour, a leavening agent and Chinese herbal medicines, the sour soup stock solution is used for feeding live pigs, growth can be promoted, the feed conversion rate is high, the absorption rate is high, the disease resistance is high, the use of antibiotics can be reduced, the concentration of ammonia gas in a pigsty is reduced, environment and air pollution is reduced, the resource utilization efficiency of manure returning to the field is improved, the odor of a pig farm is reduced, and mosquitoes and flies are reduced.

This invention relates to the field of livestock breeding technology, and more particularly to an acidic solid environmental conditioner for pig farms, its preparation method, and its application. By mass percentage, its raw materials consist of the following components: 80%-90% natural minerals, 4%-8% natural acidic extracts, 4%-8% natural organic acids, 0.5%-1% photocatalytic nanomaterials, and 1.5%-3.0% natural compound essential oils; and the sum of the mass percentages of each component is 100%. The advantages of this invention are that it contains natural mineral components and natural active extract components, wherein the natural mineral components are mainly calcium-based bentonite and nano-titanium dioxide; the natural active extract components are mainly phenyl lactic acid, citric acid, and plant extracts; it has antibacterial, dehumidifying, and deodorizing effects; it is safe and non-toxic when applied to pig farm environments, does not induce drug resistance, leaves no residue, is low in cost, has stable performance, and is easy to use. It can significantly reduce the number of bacteria in pig houses, reduce ammonia concentration and humidity, and plays an important role in maintaining a good breeding environment and reducing the incidence of disease in pig herds.

The application discloses high-protein pig feed and a preparation method thereof, and particularly relates to the field of high-protein pig feed preparation. Beer yeast cell wall residues and defatted tenebrio molitor sand are subjected to protease enzymolysis, enzyme inactivation, drying and crushing to obtain modified protein cores. Konjac glucomannan is subjected to sodium periodate oxidation, purification and drying to obtain oxidized konjac glucomannan. The modified protein cores are dispersed in a solvent, and a zinc nitrate hexahydrate solution, a 2-methylimidazole solution and a mixed solution of oxidized konjac glucomannan and tannic acid are added dropwise to carry out a reaction to obtain high-protein composite microparticles. The high-protein composite microparticles are uniformly mixed with high-protein basic feed to obtain the high-protein pig feed. The high-protein composite microparticles have a pH-responsive controlled-release shell layer, can provide stomach protection for the modified protein cores, realize targeted release in the intestinal tract, help to improve the protein utilization rate, improve intestinal health, and have good storage stability.

The ammonia transfer device comprises hollow fibers, a containing cavity, a synthesis device, a first material pipe, a second material pipe, a third material pipe and a fourth material pipe, the middle of the hollow fiber is arranged in the containing cavity, a first feeding port and a first discharging port are formed in the two ends of the hollow fiber respectively, and a second feeding port and a second discharging port are formed in the two ends of the containing cavity respectively. The first material pipe is communicated with the first feeding port, the second material pipe is communicated with the first discharging port, the third material pipe is communicated with the second feeding port, and the fourth material pipe is communicated with the second discharging port and the synthesizing device. According to the utility model, an ammonia water solution of sodium taurate can flow in the hollow fiber hydrophobic membrane, sodium isethionate flows outside the hollow fiber hydrophobic membrane, the flowing directions of the ammonia water solution of sodium taurate and the sodium isethionate are opposite, and ammonia gas released by the ammonia water solution of sodium taurate is absorbed by a sodium isethionate solution after penetrating through the hydrophobic membrane, so that ammonia transfer is completed. The ammonia concentration of the ammonia water solution of sodium taurate is reduced, and the energy consumption required for separating ammonia is reduced.

The invention relates to an ammonia catching agent for near-surface air and a preparation method thereof. The ammonia catching agent comprises the following components in parts by mass: 3-10 parts of sodium chloride, 5-15 parts of calcium chloride, 5-10 parts of magnesium chloride, 10-20 parts of calcium magnesium acetate, 0.1-0.5 part of benzotriazole, 5-15 parts of organic sodium salt, 0.2-1 part of inorganic thickening agent, 10-20 parts of polyhydric alcohol and 40-120 parts of water. The ammonia trapping agent can effectively reduce the concentration of ammonia in near-surface air, the reduction rate is 5%-15%, ammonia can be effectively prevented from escaping into the air for the second time, the ammonia can form stable ammonium salt after being adsorbed by the trapping agent, and then the stable ammonium salt enters an underground pipe network sewage collection system after being washed by a sanitation vehicle or rain water. The ammonia trapping agent can play a role in synergic emission reduction of multiple pollutants, and has a certain adsorption effect on PM2.5, PM10 and NOx in near-surface air while controlling ammonia.

The utility model relates to the technical field of ship power fuel treatment, in particular to a ship ventilation mast system using ammonia fuel, which comprises a ventilation mast body, an internal spraying assembly, a first detection piece, a ventilation cap, an external spraying assembly and a second detection piece, a gas inlet for ammonia gas to enter is formed in one side close to the bottom, and is provided with a control valve; the internal spraying assembly is arranged near the opening position in the ventilation mast body; the first detection piece is used for detecting the concentration of ammonia gas, is arranged on the side wall in the ventilation mast body and is positioned above the internal spraying assembly; the ventilation cap covers the open end of the ventilation mast body, the ventilation cap is provided with a birdmouth, and ammonia gas flows through the ventilation cap from the ventilation mast body and then flows out from the upper portion; the external spraying assembly is arranged above the birdmouth, the second detection piece is arranged above the external spraying assembly and used for detecting the concentration of ammonia gas, and the second detection piece is electrically connected with the control valve.

A toxic ammonia gas absorption system for a liquid ammonia fuel ship comprises a toxic ammonia gas release source (100), an ammonia gas absorption tank (200), an ammonia gas guide pipeline and a diluted ammonia gas discharge pipeline. The ammonia gas absorption tank (200) is provided with an absorbent (201), a gas diffusion layer (202), a liquid level switch (203), a gas phase space (206) and a temperature control device (207). The system can improve the safety, the environmental protection property and the economical efficiency of the ammonia fuel used by the ship.

The invention relates to a compound enzyme preparation for improving the digestive function of intestinal tracts of pets and a preparation method of the compound enzyme preparation. The compound enzyme preparation is prepared from the following raw materials in percentage by mass: 36-45% of a compound plant fermentation product, 18-25% of compound enzyme, 14-18% of shea butter, 10-16% of fucoidan polysaccharide sulfate and 11-19% of bacillus subtilis, wherein the compound plant fermentation product is obtained by drying a compound fermentation solution obtained by mixing and fermenting pumpkin vines, corn straws and melastoma dodecandrum with lactobacillus bulgaricus. The compound enzyme preparation promotes and improves the absorption effect of pet intestinal tracts on crude protein / protein, reduces the concentration of ammonia in excrement, reduces odor, can reduce environmental pollution and improve the odor environment of common life of pets and people in the actual use process, and has good practical significance.

The invention relates to a multi-stage washing and storing system for ammonia gas discharged by a marine engine, which comprises a first-stage pressurized ammonia gas washing device, a second-stage pressurized ammonia gas washing device, a back pressure valve, a normal-pressure ammonia gas washing device and an ammonia water collecting tank, the device comprises a pressurized ammonia gas washing cabinet, a first-stage ammonia water pump and a first-stage ammonia water cooler, the second-stage pressurized ammonia gas washing device is used for further deep washing and comprises a spray tower, and a plurality of layers of fillers and adjustable spray heads are arranged in the spray tower, so that gas-liquid contact is enhanced; the back pressure valve reduces the pressure of the ammonia gas to normal pressure for final treatment of the normal-pressure washing device; the ammonia water collecting tank collects and stores ammonia water generated by washing, and a built-in liquid level and concentration sensor monitors in real time. By means of multi-stage washing and accurate control, ammonia gas is efficiently treated, it is ensured that emission reaches the standard, an efficient, environment-friendly and intelligent solution can be provided, the method has important application value and popularization prospects, green development of the ship industry is promoted, and environmental pollution is reduced.