PROCESS FOR HYDRODESULFURIZATION OF LIGHT OIL FRACTION

WIPO Patent Application WO/2001/074973

A1

A process for hydrodesulfurization which comprises introducing hydrogen and a coarsely purified oil, which is a light oil fraction containing sulfur, to a reactor packed with a hydrodesulfurization catalyst, wherein the coarsely purified oil has a sulfur content of 2000 ppm or less and preferably a polycyclic aromatic compound content of 3 wt % or more, wherein the amount of hydrogen sulfide contained in the coasely purified oil and hydrogen introduced to the reactor is 1.5 mol % or less relative to that of the hydrogen introduced, and wherein the hydrodesulfurization catalyst comprises a carrier comprising a porous inorganic oxide and, carried thereon, tungsten and one of nickel and cobalt as a metal component. The process allows the production of a desulfurized light oil having a sulfur content of 50 ppm or less without the use of a special crude oil and under operation conditions providing high productivity.

KOIDE RYUTARO (JP)
TANAKA HIDEO (JP)
GOTO YASUHITO (JP)

PCT/JP2001/002652

October 11, 2001

March 29, 2001

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JAPAN ENERGY CORP (JP)
KOIDE RYUTARO (JP)
TANAKA HIDEO (JP)
GOTO YASUHITO (JP)

B01J21/12; B01J23/88; B01J23/888; B01J35/10; C10G45/08; C10G49/00; C10G65/04; (IPC1-7): C10G45/08; C10G65/04; B01J23/88; B01J23/85

WO1993012204A1

1993-06-24

EP0611816A1	1994-08-24
JP2000212578A	2000-08-02
EP0949314A2	1999-10-13
JPH09929A	1997-01-07
US4990242A	1991-02-05
JPH0539492A	1993-02-19
US6042716A	2000-03-28

Kawakita, Kijuro (Shinjuku 5-chome Shinjuku-ku, Tokyo, JP)

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