METHOD OF LOADING THE CATALYTIC SYSTEM FOR HYDROTREATING VACUUM GAS OIL AND ALUMO-COBALT-MOLYBDENUM CATALYSTS (OPTIONS) Russian patent published in 2021 - IPC B01J23/882 B01J23/883 B01J37/00 C10G45/08 

FIELD: vacuum gas oil.

SUBSTANCE: invention relates to variants of a method for loading a catalytic system for hydrotreating vacuum gas oil. According to the first option, when hydrotreating vacuum gas oil containing more than 2.0 wt. % sulfur and less than 0.1 wt. % nitrogen, the first layer along the raw material load 60-75 vol. % alumocobalt-molybdenum catalyst for deep hydrodesulfurization, containing, wt. %: cobalt oxide 6.0-8.0, molybdenum oxide 18.0-24.0, silicon oxide 6.0-16.0 and aluminum oxide - the rest, and the second layer along the raw material load 25-40 vol. % alumina-nickel-molybdenum catalyst for denitrogenation containing, wt. %: nickel oxide 5.0-9.0, molybdenum oxide 18.0-24.0, phosphorus oxide 1.0-3.0, silicon oxide 1.8-5.5 and aluminum oxide - the rest. The invention also relates to a second embodiment, according to which during the hydrotreating of vacuum gas oil containing less than 2.0 mass. % sulfur and more than 0.1 wt. % nitrogen, the first layer along the raw material to be loaded is 20-30 vol. % alumocobalt-molybdenum catalyst for deep hydrodesulfurization, the second layer along the raw material to be loaded is 30-40 vol. % alumina-nickel-molybdenum catalyst for denitrogenation and the third layer along the raw material to be loaded 50-30 vol. % alumo-cobalt-molybdenum catalyst for deep hydrodesulfurization, while alumo-cobalt-molybdenum catalyst contains mass. %: cobalt oxide 6.0-8.0, molybdenum oxide 18.0-24.0, silicon oxide 6.0-16.0 and aluminum oxide - the rest, and the aluminum-nickel-molybdenum catalyst contains, wt. %: nickel oxide 5.0-9.0, molybdenum oxide 18.0-24.0, phosphorus oxide 1.0-3.0, silicon oxide 1.8-5.5 and aluminum oxide - the rest.

EFFECT: technical result consists in increasing the catalytic activity in the desulfurization and denitrogenation reactions occurring in the process of hydrotreating vacuum gas oil, which ensures the production of hydrotreated vacuum gas oil with a residual sulfur content of no more than 250 ppm and nitrogen no more than 250 ppm.

2 cl, 2 tbl, 6 ex