| 摘要 |
PROBLEM TO BE SOLVED: To provide a hydrocarbon hydrogenation treatment process which enables reduction in sulfur content and nitrogen content of cracked gas oil obtained by subjecting hydrocarbons to hydrogenation treatment. SOLUTION: This hydrogenation treatment process involves (1) using a hydrogenation treatment catalyst consisting of a demetallization catalyst placed on the upstream side and two different desulfurization catalysts placed on the downstream side, one of which is used in the first stage of two-stage desulfurization and the other of which is used in the second stage of the two- stage desulfurization, wherein: (2) the desulfurization catalyst, which is placed on the downstream side and used in the second stage, contains a refractory inorganic oxide used as a carrier, nickel and molybdenum, each used as an active metal, and also phosphorus used as another component; (3) in the preparation process of the desulfurization catalyst used in the second stage, when the active metals are deposited on the carrier, a water-soluble organic compound having a >=150 deg.C boiling point or decomposition point is used; and (4) the desulfurization catalyst used in the second stage has a 60-150Åaverage pore size.
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