Efficient hydro-upgrading method for poor diesel fuel
A low-quality diesel oil and hydrogenation upgrading technology, which is applied in the fields of hydrotreating process, petroleum industry, and hydrocarbon oil treatment, etc., can solve the conflict between the effect of pour point depressing effect and the yield of diesel fraction still exists, the yield of diesel fraction and the effect of pour point depressing Restrict and reduce the service life of the hydrogen depreciation catalyst, etc., to achieve the effects of strengthening depreciation and hydrogenation modification, improving the efficiency of reaction heat utilization, and improving the effect of depreciation
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[0041] This example is an ebullating bed hydrogenation test using a hydrodepreciation catalyst, a hydrogenation upgrading catalyst, a hydroisomerization depreciation catalyst and a powdered hydrorefining catalyst. See attached for specific operation procedure figure 1 . In Examples 1-2, the volume ratio of the powdered hydrofining catalyst to the hydrodepreciation catalyst, hydrogenation upgrading catalyst, and isomerization depreciation catalyst is 1:5, among which the hydrodepression catalyst, the hydrogenation upgrading catalyst , The volume ratio of heterogeneous pour point depressant catalyst is 1:1:1. In Example 3, the volume ratio of the powdered hydrofining catalyst to the hydrodepreciation catalyst, hydrogenation upgrading catalyst, and isomerization depreciation catalyst is 3:1, wherein the hydrodepression catalyst, hydrogenation upgrading catalyst, isomerization The volume ratio of the pour point depressing catalyst is 1:2:1. The low-quality diesel oil and the pow...
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