Method for production hydrogenation of low freezing point diesel fuel
A production method and diesel oil technology, which is applied in the fields of hydrotreating process, petroleum industry, and hydrocarbon oil treatment, can solve the problems of high reaction temperature at the outlet of the bed layer, limited operation cycle, etc., and achieve remarkable desulfurization effect, guaranteed yield, good The effect of pour point depressing effect
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Embodiment 1
[0043] use figure 1 The process flow shown is to produce low-condensation-point diesel oil by using gradation series and mixed packing process. In embodiment 1, two hydrogenation reaction zones connected in series are included, and in the composite bed of the depreciating and upgrading catalyst in each reaction zone, the mixing volume ratio of the hydrogenation depreciating catalyst and the hydrogenation and upgrading catalyst is 1:2, and the catalyst The total amount is the same as that of Comparative Example 1 and Comparative Example 2. The hydrogenation upgrading catalyst used in Example 1 is FC-18 catalyst, and the hydrodecondensation catalyst is FDW-3 catalyst, both of which are commercial catalysts developed and produced by Fushun Petrochemical Research Institute.
[0044] The operating conditions and test results are listed in Table 3.
Embodiment 2
[0046] use figure 1 The process flow shown is to produce low-condensation-point diesel oil by using gradation series and mixed packing process. In Example 1, two hydrogenation reaction zones connected in series are included. In the composite bed of the combined depreciation catalyst in each reaction zone, the mixing volume ratio of the hydrogenation depreciation catalyst and the hydrogenation upgrading catalyst is 1:2, and the total amount of catalyst is 1:2. Consumption is all the same as Comparative Example 1 and Comparative Example 2. The hydromodified isomerization depreciation catalyst used in Example 2 is FC-18G catalyst, and the hydrodegradation catalyst is FDW-3 catalyst, both of which are commercial catalysts developed and produced by Fushun Petrochemical Research Institute.
[0047] The operating conditions and test results are listed in Table 3.
[0048] Table 2 Raw oil properties table.
[0049] project Raw oil source Often three-line diesel ...
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