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355results about How to "Even heat distribution" patented technology

Start-up activation method for hydrogenation cracking process

The invention discloses a start-up activation method for a hydrogenation cracking process, which comprises the following steps that: (1) a hydrogenation cracking pre-refining reactor and a hydrogenation cracking reactor are adopted in the hydrogenation cracking process, and catalysts are ex-situ presulfurizing catalysts; (2) the hydrogenation cracking pre-refining reactor and the hydrogenation cracking reactor are used for carrying out operation including gas displacement, device airtightness and the like; and (3) activation oil and hydrogen gas enter a gas-liquid separator after entering the hydrogenation cracking pre-refining reactor under the ex-situ presulfurizing catalyst activation condition, a liquid phase separated out from the gas-liquid separator is circulated back to the hydrogenation cracking pre-refining reactor, the closed loop circulation is carried out in the hydrogenation cracking pre-refining reactor, a gas phase separated out from the gas-liquid separator enters the hydrogenation cracking reactor, and the gas phase discharged from the hydrogenation cracking reactor is circulated back to the hydrogenation cracking pre-refining reactor. Compared with the prior art, the method has the advantages that the catalyst sulfurization effect is good, and the excellent reaction effect is realized.
Owner:CHINA PETROLEUM & CHEM CORP +1

High-temperature molten salt electriochemistry testing system

The invention discloses a high-temperature molten salt electriochemistry testing system applicable to a temperature range of 750 DEG C - 900 DEG C; the high-temperature molten salt electriochemistry testing system comprises a high-temperature electric resistance furnace, high-temperature electriochemistry electrodes and a high-temperature molten salt crucible. A high-temperature molten salt reference electrode (2) is mainly composed of a first electrode stem (24) and a sleeve; the first electrode stem (24) is packaged in a first aluminum oxide sleeve (25) sealed by cement (27); a high-temperature molten salt working electrode (3) is mainly composed of a second electrode stem and a sleeve; the main body of the second electrode stem is packaged in a second aluminum oxide sleeve (32) including sealing cement, thus ensuring heat insulation and uniform distribution of heat under the condition of high temperature; a crucible cover (64) which is provided with a central hole (65) and made of ceramic is placed at the top of the crucible (6); the crucible cover (64) can effectively prevent electrolyte from volatilizing due to melting in high temperature, and thereby the furnace body of the electric resistance furnace is prevented from being eroded by volatilization of the molten electrolyte.
Owner:CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Nonstick pan coating layer, and production method and nonstick pan thereof

The invention provides a nonstick pan coating layer, and a production method and a nonstick pan thereof. The production method comprises the following steps: mixing organosilicone resin, modified silicon carbide, nanometer calcium carbonate, mica powder, amino resin, a dispersant and a solvent, grinding the obtained mixture, dispersing the ground mixture, and filtering the dispersed mixture to obtain a coating; and spraying the coating on the surface of a metal pan matrix, and baking the sprayed metal pan matrix at 200-300DEG C for 10-30min to obtain the nonstick pan coating layer. The organosilicone resin, saturated modified silicon carbide and the nanometer calcium carbonate are simultaneously applied to the nonstick pan coating layer in order to form the coating layer with excellent performances of above three components. The modified silicon carbide has good thermal stability, corrosion resistance and thermal conduction performance, and guarantees the thermal distribution uniformity of the coating layer; the nanometer calcium carbonate makes the microscopic surface of the organosilicone coating layer be tight and have zero porosity, protects the matrix, and enhances the nonstick effect of the coating layer, and the nanometer calcium carbonate and the modified silicon carbide have synergism, and enhance the hardness and the heat resistance of the nonstick pan coating layer.
Owner:宁波贝得厨具有限公司
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