Hydrogenation combined method for diesel oil
A combined method and diesel technology are applied in the directions of hydrotreating process, petroleum industry, processing of hydrocarbon oil, etc., and can solve the problems that the quality of distillate oil cannot meet product quality requirements, the density of catalytically cracked diesel oil is high, and the cetane number is low. Achieve the effect of saving equipment, improving service life and low nitrogen content
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[0025] The hydrogenation upgrading catalyst described in step a can be adjusted accordingly according to the different properties of the raw materials. If the content of sulfur and nitrogen impurities in the raw material is low, the hydrogenation upgrading catalyst can be used alone. For the coked diesel fraction, before the hydrogenation upgrading catalyst, the raw material can be contacted with the hydrorefining catalyst to remove part of impurities such as sulfur and nitrogen. Hydrofining catalysts can be conventional hydrofining catalysts, such as various commercial hydrofining catalysts, such as FH-5, FH-5A, FH-98, FH-DS, FH-UDS developed and produced by Fushun Petrochemical Research Institute , 3936, 3996 and other hydrotreating catalysts, or catalysts with similar functions developed by other catalyst companies, such as HC-K and HC-P from UOP, TK-555 and TK-565 from Topsor, and AKZO’s KF-847, KF-848, etc. The hydrogenation upgrading catalyst can be selected according t...
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