HYDROFINING PROCESS

WIPO Patent Application WO2002072730

A3

A hydrofining process in which a sulfur- and hydrocarbon-containing processing stream is supplied to a multi-stage hydrotreating reactor incorporating separate stages of cobalt molybdenum catalysts. Hydrogen may be supplied concurrently or counter-currently with the hydrocarbon-containing processing stream. The processing stream is passed into contact with an initial catalyst stage comprising a cobalt molybdenum desulfurization catalyst present in a minor amount of the total composite amount of catalysts within the reactor. Thereafter the processing stream is passed through a subsequent catalyst stage comprising a major amount of cobalt molybdenum hydrocracking catalyst. The effluent stream having a reduced sulfur content is then withdrawn from the hydrotreating reactor. The initial and subsequent catalyst stages are separated by an intervening sector within the reactor containing an inert particulate refractory material, specifically silica particles generally spheroidal in shape.

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GARRETT CORDERA MERRY HOLLI (US)
COMEAUX CHARLES ALLEN (US)
HERREBOUT KOENRAAD JACQUES (US)
HUNTER JOE DAVID (US)

PCT/IB2002/001866

September 18, 2003

March 12, 2002

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FINA TECHNOLOGY (US)
GARRETT CORDERA MERRY HOLLI (US)
COMEAUX CHARLES ALLEN (US)
HERREBOUT KOENRAAD JACQUES (US)
HUNTER JOE DAVID (US)

C10G45/08; C10G47/20; C10G49/00; C10G65/04; C10G65/12; (IPC1-7): C10G65/12

US4983273A	1991-01-08
US3528908A	1970-09-15
US4510042A	1985-04-09
EP0214717A1	1987-03-18
US4191634A	1980-03-04
US4755280A	1988-07-05
US3472759A	1969-10-14
US3184403A	1965-05-18

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