Hydrotreating method of vacuum gas oil and hydrotreating catalyst

摘要

PPROBLEM TO BE SOLVED: To provide a hydroprocessing catalyst which is highly hydrodesulfurization-active by having greatly increased hydrodesulfurization active points, and inexpensive, and to provide a method of hydroprocessing a vacuum distilled gas oil using the catalyst. PSOLUTION: The hydroprocessing catalyst of a hydrocarbon oil comprises a carrier of a phosphorous-containing inorganic oxide containing a definite amount of phosphorous, and a definite amount of a group VI metal and a group VIII metal in the periodic table, wherein the oxide-converted mass ratio of the group VI metal/the group VIII metal is 3.6-5.5, the A value satisfies the following equation (1), and the Iave. (center±10%) is not less than 1,000; A=1.74×SA+8.68×PSD-960≥150 (1). The method of hydroprocessing the vacuum distilled gas oil is also disclosed. PCOPYRIGHT: (C)2009,JPO&INPIT