METHOD FOR HYDROGENERATION PROCESSING OF RAW MATERIALS Russian patent published in 2019 - IPC C10G45/04 C10G45/08 C10G65/02 B01J21/04 B01J21/06 

FIELD: technological processes.

SUBSTANCE: invention relates to a method for hydrogenation processing of hydrocarbons and can be used in refining industry. invention relates to a method of hydrogenation processing of hydrocarbon raw materials, in which the raw materials are passed through a reactor with a fixed bed of a catalyst package, consisting of a basic catalyst for hydrotreating, as which nickel-alumino-molybdenum and/or alumino-cobalt-molybdenum catalyst is used in a sulphide form, and above it protective layers in the amount of 10–15 % of the reaction volume, including: layer A – an inert material for removing mechanical impurities, having free volume of at least 65 %, layer B – composite filtering material to remove solid mechanical impurities and hydrogenate unsaturated compounds based on highly porous cellular material, having free volume of at least 80 %, bore size of not more than 30 mesh, as active components containing nickel and molybdenum compounds, nickel content is not more than 3 % by mass, molybdenum is not more than 10 % by mass, layer C is a sorption-catalytic material for removing arsenic and silicon based on mesoporous silicon oxide with a specific surface area not lower than 350 m²/g, pore volume not lower than 0.4 cm³/g, as active components containing compounds of nickel and molybdenum, while the nickel content is not more than 6 % by weight, molybdenum – not more than 14 % by weight, layer D – gamma-alumina-based demetallization catalyst with a specific surface not lower than 150 m²/g, pore size not lower than 0.4 cm³/g, as active components containing compounds of cobalt, nickel and molybdenum, cobalt content is not more than 4 % by mass, nickel is not more than 4 % by mass, molybdenum is not more than 14 % by mass, with the following ratio of protective layers in parts by volume – A:B:C:D – 0.2:0.6÷2.4:1.2÷1.6:0.2÷1.6.

EFFECT: increase in the interregenerative cycle of operation of the main catalyst by an average of 50 % and extension of its total service life.

3 cl, 1 tbl, 5 ex