METHOD OF HYDROPROCESSING OF HYDROCARBON RAW STOCK Russian patent published in 2008 - IPC C10G65/12 C10G45/04 C10G45/06 C10G45/10 C10G45/12 C10G47/02 C10G49/02 C10G45/02 B01J23/46 B01J29/12 B01J29/22 

FIELD: chemistry, organic, processing of hydrocarbons.

SUBSTANCE: invention is related to an improved method for hydroprocessing of hydrocarbon raw stock containing sulphur- and/or nitrogen-bearing contaminants. The method comprises the first contact interaction of hydrocarbon raw stock with hydrogen in the presence of at least one first catalyst based on VIII group metals on an acidic carrier, the carrier being selected from the group of zeolites and zeolite-bearing carriers, and then the flow leaving the first catalyst directly contacts hydrogen in the presence of at least one second catalyst based on a VIII group metal on a less acidic solid carrier, said solid carrier being selected from the group of carriers based on silicon dioxide-aluminium oxide and other solid carriers that are not zeolites. Said combination of two catalyst layers allows processing of raw stock with a high content of contaminating impurities without high-level cracking that involves the use of highly acidic carriers.

EFFECT: processing of hydrocarbon raw stock with contaminating impurities without high-level cracking.

14 cl, 1 ex