METHOD OF USING CATALYST - SILICON TRAP DURING HYDROGENATION PROCESSING OF OIL STOCK Russian patent published in 2020 - IPC C10G45/08 C10G65/06 

FIELD: chemistry.

SUBSTANCE: invention relates to methods of using a catalyst - a silicon trap in the process of hydrogenation processing of oil stock containing silicon compounds, and can be used in oil refining industry. Method of using catalyst - silicon trap in process of hydrogenation processing of oil stock is disclosed, which is characterized by that catalyst - silicon trap is used as component of protective layer, which additionally contains active filtration material and catalyst for hydrogenation of diolefins, located above the silicon trap, respectively, wherein the silicon trap catalyst is an alnomickel-molybdenum catalyst with specific surface area of at least 250 m²/g and content of nickel and molybdenum of not more than 1.5 and 7 wt. %, respectively, the active filtration material is prepared based on a high-porous cellular material with a fraction of free volume of 40–45 %, catalyst for hydrogenation of diolefins is also prepared based on highly porous cellular material with a free volume of 60-80% and content of nickel and molybdenum of not more than 1.5 and 3.5 wt. %, respectively, the raw material is first passed through a protective layer to remove mechanical impurities, diolefins and silicon, then through a base layer consisting of a sorbent for removing arsenic, and an aluminum-nickel-molybdenum catalyst for desulphurisation and denitrogenation of hydrocarbon material, wherein the sorbent for removing arsenic compounds contains nickel in amount of 5÷20 wt. % on an aluminum oxide support and an alumina-nickel-molybdenum catalyst, intended for desulphurization and denitrogenation of raw materials, contains nickel, molybdenum and phosphorus in amount of not more, than wt. %. 4.0; 13.0; and 3.0, respectively.

EFFECT: technical result is a method of using a catalyst - a silicon trap in a process of hydrogenation processing of secondary oil stock, providing a component for catalytic reforming or raw material for petrochemistry, which leads to significant reduction of sulfur and nitrogen content, complete absence of arsenic, wherein content of silicon in the feed stream is reduced to a level of less than 0_1 ppm.

6 cl, 3 tbl, 3 ex, 1 dwg