CATALYST AND OIL STOCK HYDROTREATMENT PROCESS UTILIZING IT Russian patent published in 2007 - IPC B01J23/85 B01J27/12 C10G47/08 C10G45/08 

FIELD: petroleum processing.

SUBSTANCE: invention provides oil stock hydrotreatment catalyst containing alumina-supported hydrogenation components: cobalt, molybdenum, and tungsten in the form of oxides at weight ratio Co/Mo/W = 20:45:35 (15-25% in total), aluminum fluoride (10-30%), and promoter (2.5-16.5%): silicon oxide and/or rare-earth element oxides, in particular lanthanum oxide or lanthanum/cerium oxide mixture. Promoter may further contain up to 3% zirconium oxide. Alumina functions as binding material. Invention also covers oil stock hydrotreatment process, which is conducted in presence of claimed catalyst at 340-430°C, pressure 3-10 MPa, oil stock flow rate 0.5 to 3 h-1, and hydrogen-to-oil stock ratio 250 to 1000 nm³/m³. Catalyst is characterized by elevated hydrocracking and hydro-desulfurization activity and selectivity in oil stock hydrotreatment processes resulting in production of diesel distillates meeting European requirements (EN-590). Catalyst can be prepared on any existing catalyst preparation equipment.

EFFECT: simplified catalyst preparation technology and avoided formation of effluents.

5 cl, 3 tbl, 6 ex