Processing technology for naphthenic oil
A processing technology and naphthenic oil technology, which is applied in the fields of hydroprocessing technology, petroleum industry, hydrocarbon oil treatment, etc., can solve unsatisfactory problems, and achieve the effects of more secondary pores, saving investment, and flexible process
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Embodiment 1
[0036] Such as figure 1 In the process shown, the hydrotreating reaction zone uses a hydrorefining catalyst, and the heterogeneous pour point depressing reaction zone uses the precious metal isomerization depressing point catalyst FIW-1. The catalyst in the supplementary refining reaction zone is not segmented, but only one catalyst A is used. The properties of the catalysts used are listed in Table 2 and Table 3 respectively, and the properties of the obtained special oil fractions are shown in Table 5.
[0037] The supplementary purification catalysts used in the examples were all prepared according to the method disclosed in CN104588073A.
Embodiment 2
[0039] The hydroprocessing and isomerization depressing part are the same as in Example 1, and only catalyst B is used in the supplementary refining reaction zone. The properties of special oil fractions can also be obtained in Table 4.
Embodiment 3
[0041] The hydroprocessing and heterogeneous pour point depressing parts are the same as in Example 1. The supplemental refining reaction is divided into two supplementary refining sections, and the grading scheme of catalyst A and catalyst B is adopted (the first supplementary refining section is filled with catalyst A, the second supplementary refining section is filled with catalyst A Stage loading catalyst B). At the same time, the process conditions are also matched. See Table 4 for the properties of special oil fractions.
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