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2 results about "Chemical reaction engineering" patented technology

Chemical reaction engineering (reaction engineering or reactor engineering) is a specialty in chemical engineering or industrial chemistry dealing with chemical reactors. Frequently the term relates specifically to catalytic reaction systems where either a homogeneous or heterogeneous catalyst is present in the reactor. Sometimes a reactor per se is not present by itself, but rather is integrated into a process, for example in reactive separations vessels, retorts, certain fuel cells, and photocatalytic surfaces. The issue of solvent effects on reaction kinetics is also considered as an integral part.

A method for continuously preparing 4,4'-diaminodicyclohexyl methane based on a loop reactor hydrogenation

The application provides a method for preparing 4,4'-diamino dicyclohexyl methane based on a circulation reactor continuous hydrogenation, and belongs to the technical field of chemical reaction engineering. The method is that 4,4'-diamino diphenyl methane is mixed with an organic solvent, heated through a preheater first, fully mixed with hydrogen in a gas-liquid mixer after reaching a certain temperature, forms a gas-liquid mixed fluid, and is subjected to hydrogenation reaction with a supported ruthenium catalyst and a deamination retarder in a circulation reactor to prepare 4,4'-diamino dicyclohexyl methane. The application adds the deamination retarder in the circulation reactor hydrogenation process, reduces the deamination side reaction of the target product, thereby improving the yield of the target product, reducing the production cost of the unit yield of the target product, and the reaction pressure is low, the safety is high, the production efficiency is high, and the method has important application value in the actual mass production in industry.
Owner:TONGCHUANG CHEM (SHANDONG) CO LTD

Application of co as discharge gas in plasma cracking of carbon-containing organic raw material to prepare conductive carbon black and method for preparing conductive carbon black

PendingCN122381598AChemical reactionCarbon.organic
The present application relates to the technical field of chemical reaction engineering, and particularly relates to application of CO as discharge gas in plasma cracking of carbon-containing organic raw material to prepare conductive carbon black and a method for preparing conductive carbon black. The present application uses CO as discharge gas in plasma cracking of carbon-containing organic raw material to prepare conductive carbon black, which not only effectively solves the problems of low thermal conductivity of part of traditional discharge gas, insufficient cracking of raw material and low carbon black yield, improves process efficiency, but also solves the problem of generation of HCN in cracking of hydrocarbon substances by using N2 as discharge gas, and conforms to the concept of green chemistry. The'secondary heat release' mechanism generated after ionization can solve the problem of insufficient local area heating (additional external heating is needed) in the process of cracking of hydrocarbon substances, and saves process cost. Compared with nitrogen, the more stable voltage fluctuation and smaller cathode ablation rate provide support for industrialization.
Owner:QUZHOU RES INST OF ZHEJIANG UNIV +1