Heavy oil hydroprocessing with group VI metal slurry catalyst

Details Heavy oil hydroprocessing with group VI metal slurry catalyst Heavy oil hydroprocessing with group VI metal slurry catalyst

Filed on

1991-04-05

Date issued

1992-11-10

Examiner

McFarlane, Anthony

Patent Class

Catalyst, solid sorbent, or support therefor: product or process

SubClass

Catalyst or precursor therefor

SubSubClass

Sulfur or compound containing same

Other Related Categories

502219, 208108, 208215, B01J 27051, B01J 27047, C10G 4504

Type

Patent

Status

active

Patent number

051622823

Description

ABSTRACT:
A process for the preparation of a dispersed Group VI-B metal sulfide hydrocarbon oil hydroprocessing catalyst comprising reacting aqueous ammonia and a Group VI-B metal compound, such as molybdenum oxide or tungsten oxide, to form water soluble compounds such as aqueous ammonium molybdates or tungstates. The aqueous ammonium molybdates or tungstates are sulfided at a relatively low temperature with hydrogen sulfide without feed oil, and wherein the mole ratio of the sulfiding agent to metal salts is greater than 2, to produce molybdenum or tungsten sulfide catalysts of high hydroprocessing activity. The catalyst slurry and feed oil can then be passed to a hydroprocessing reactor or can be further sulfided in additional steps of increasing temperature.

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patent: 4710486 (1987-12-01), Lopez et al.
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patent: 4755496 (1988-07-01), Ho et al.
patent: 4762812 (1988-08-01), Lopez et al.
patent: 4824821 (1989-04-01), Lopez et al.
patent: 4857496 (1989-08-01), Lopez et al.

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