Method for producing hydrogenated low-condensation diesel oil by grading technology
A technology, diesel technology, applied in the field of hydrogenation for the production of low-point-point diesel, which can solve the problems of diesel fraction yield and point-point depressing effect limitations, reduce the service life of hydrogen-depressing catalysts, and high reaction temperature at the outlet of the bed, so as to achieve desulfurization Remarkable effect, cetane number increase, low catalyst cost
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[0039] use figure 1 The process flow shown is to produce low-condensation-point diesel by means of mixing and grading series processes. In Example 1, two hydrogenation reaction zones connected in series are included. In the composite bed of refining and upgrading catalyst in each reaction zone, the mixing volume ratio of the hydrogenation refining catalyst and the hydrogenation upgrading catalyst is 1:4, and the total amount of catalyst used is Both of Comparative Example 1 and Comparative Example 2 are the same. The hydrogenation upgrading catalyst used in Example 1 is FC-18 catalyst, the hydrofining catalyst is FH-98 catalyst, and the hydrogenation decondensation catalyst is FDW-3 catalyst, all of which are developed and produced by Fushun Petrochemical Research Institute commodity catalyst.
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