32results about How to "Inhibition of desorption" patented technology

An exhaust gas purifying catalyst comprises a hydrocarbon adsorbent layer containing zeolite as a main component and a metal-based catalyst layer containing any noble metal such as palladium, platinum, rhodium, etc. on a monolithic support that has a plurality of cells whose sectional shape is a regular N-polygon. In the case that Rc is a distance from a center of gravity to an inner wall surface of the hydrocarbon adsorbent layer along a line extending from the center of gravity of the regular N-polygon in the cell sectional shape to a corner of the N-polygon, and Rf is a distance from the center of gravity to the inner wall surface of the hydrocarbon adsorbent layer along a line extending from the center of gravity perpendicularly to respective sides of the regular N-polygon, a ratio Rc/Rf is set to less than or equal to 1.7 in a cell sectional shape.

The present invention relates to an engine luboil composition applicable to base oil (group III), in particular, it is a luboil composition of diesel engine which is applicable to base oil (group III). It is characterized by that it contains lots of hydroisomerized base oil (group III), and said composition also contains proper quantity of modified salicylate, high base number sulfonate, high base number sulfurized alkylphenol salt, disuccinyl imine ashless dispersant, boronized disuccingl imine ashless dispersant, zinc dialkyl dithiophosphate, phenolic auxiliary antioxidant and amine auxiliary antioxidant. Said luboil composition can meet the liubricating requirements of API CD grade diesel engine oil.

To suppress desorption of hydrogen ions with which a single crystal semiconductor substrate is irradiated. A method for manufacturing an SOI substrate includes the following steps: irradiating a semiconductor substrate with carbon ions; irradiating the semiconductor substrate with a hydrogen ion after the irradiation with the carbon ion so as to form an embrittled region in the semiconductor substrate; disposing a surface of the semiconductor substrate and a surface of a base substrate to face each other and to be in contact with each other so that the semiconductor substrate and the base substrate are bonded; and heating the semiconductor substrate and the base substrate which are bonded to each other and separating the semiconductor substrate along the embrittled region so that a semiconductor layer is formed over the base substrate.

The invention discloses a system for synergistically controlling corner gas by blocking a gas wall and a magnetized active agent and a method. The system includes a gas wall assembly and a spray assembly, the gas wall assembly is arranged on a mining channel, the spray assembly is arranged at the position near a corner, and the gas wall assembly is used to block the channel where a working surfaceis located; the spray assembly is used to spray a magnetic surfactant to a corner area; the gas wall assembly includes a gas pipeline, a pressure gauge, airbags, buckles, an inflation valve, a safetyvalve and a pressure relief hole; the inflation valve, the safety valve and the pressure relief hole are all formed in the airbag, each airbag is provided with a buckle ring, and the adjacent airbagsare connected through the buckles and the buckle rings; and the airbags are arranged in a height direction in sequence in a stacking mode. The system requires a small amount of engineering during construction and operation, and can be used without additional building of large-scale equipment. The use process is simplified, and the system is suitable for safe and efficient use by coal mine workers.

A device for quickly eliminating outburst by injecting liquid nitrogen to freeze coal through bedding drill holes twice comprises a liquid nitrogen machine, a liquid nitrogen storage tank, a liquid nitrogen injection machine, a temperature indicator, the first bedding drill hole, the second bedding drill hole, the third bedding drill hole, the fourth bedding drill hole, the fifth bedding drill hole and the sixth bedding drill hole, wherein the first bedding drill hole, the second bedding drill hole, the third bedding drill hole, the fourth bedding drill hole, the fifth bedding drill hole and the sixth bedding drill hole are arranged in sequence from left to right along the inside of a coal layer of regional substandard validation, and wheels are arranged on the bottom of the liquid nitrogen storage tank. The device for quickly eliminating outburst by injecting liquid nitrogen to freeze coal through bedding drill holes twice is suitable for the circumstances that every time the coalface is pushed forwards 10-50m, regional validation is substandard, and the extraction blank zone exists when the bedding drill holes are adopted to extract gas. Liquid nitrogen is injected through the bedding drill holes which are constructed, coal is quickly frozen by utilizing the low-temperature property of the liquid nitrogen (-196 DEG C) to build a low-temperature (below 0 DEG C) environment, inhibit desorbing of coal gas, and lower the gas scattering speed and the gas desorption amount. Quick outburst eliminating is achieved, the problems of the extraction blank zone, long extracting time, large project volume and large cost in the process of coal layer gas extraction are efficiently solved, and coal mining operation efficiency is improved.

The invention discloses a gas inhibitor and a preparation method thereof. The preparation method comprises the following steps of: S1, calcium chloride is ground into powder by a grinding machine; S2, powdery calcium chloride is weighed in a second feeding pipe through a conveying auger and then put into a stirring box; S3, a thickening agent and a lubricating agent are input into the stirring box through a third pipeline; and S4, the thickening agent, the lubricating agent and the calcium chloride powder are fully stirred and mixed to obtain the gas inhibitor, then the gas inhibitor is discharged from a second discharging pipe of the stirring box, and the gas inhibitor is packaged for standby application. The gas inhibitor can be widely applied to fully mechanized coal mining faces, tunneling faces and the like of mining enterprises, inhibits gas desorption, guarantees safe production and has a bright application prospect.

The invention belongs to the field of photocatalytic CO2 reduction, and particularly relates to a construction method and application of a Pickering microbubble system for preparing methanol through photocatalytic reduction of CO2. The Pickering microbubble system is a CO2-in-water microbubble system, which is formed by taking an amphiphilic Pickering solid photocatalyst as an emulsifying agent and spontaneously assembling the amphiphilic Pickering solid photocatalyst on a gas-water interface. When the system is used for photocatalytic CO2 reduction reaction, the reduction efficiency can be improved by 10-80% in comparison with that of the traditional gas-liquid two-phase reaction, and the selectivity of the reduction product methanol can be improved by 20-80%.

The invention discloses kitchen garbage for obstructing vegetable-core root systems from absorbing and transferring ciprofloxacin and relates to the technical field of antibiotic pollution control. The invention comprises the following steps: (SS01) sorting and separation: sorting out kitchen garbage containing organic matters; (SS02) use of solids: using the solids to prepare solid fertilizers; (SS03) filtration of liquids: filtering the liquids; (SS04) extraction of organic acid: extracting the organic acid in the liquids; (SS05) detection and regulation of PH value of the organic acid: regulating the PH value of the organic acid to be in the range of 3.2-3.3; (SS06) package of organic acid: packaging in a sealed bottle body. The kitchen garbage disclosed by the invention has the beneficial effects that by extraction of the organic acid in the kitchen garbage, regulation of the PH value of the organic acid and use of low-concentration organic acid, the desorption of the vegetable-core root systems for the ciprofloxacin can be inhibited, so that the vegetable-core root systems can be obstructed from absorbing and transferring the ciprofloxacin and the problem of higher manufacturing cost of the existing materials for obstructing the vegetable-core root systems from absorbing and transferring the ciprofloxacin is solved.

The invention belongs to the technical field of solid waste treatment, and particularly relates to a stabilization treatment method for iron-antimony waste residues. According to the method, an anaerobic environment is created by deoxidizing to prevent ferrous ions from being oxidized, the pH value of the iron-antimony waste residue suspension is adjusted to enable more ferrous ions to be adsorbed on the surface of the iron-antimony waste residue, and ferrous salt serving as a reducing agent can promote crystal conversion of amorphous ferric hydroxide in the iron-antimony waste residue to crystalline lepidocrocite or goethite. Active oxygen substances can be formed in the crystal conversion process of iron, so that trivalent antimony in the iron-antimony waste residues is oxidized under the condition that an exogenous oxidizing agent is not added to generate pentavalent antimony, and the toxicity of antimony is reduced; moreover, due to the generation of the crystalline lepidocrocite or goethite, antimony adsorbed on the surface of the iron-antimony waste residue is embedded into crystal lattices of stable iron minerals to inhibit desorption of antimony ions, the mobility and toxicity of antimony in the iron-antimony waste residue are reduced, the stability of the iron-antimony waste residue is improved, and the stabilized iron-antimony waste residue can stably exist under weak acid and alkaline conditions.