A PROCESS FOR HYDROCRACKING A HEAVY DISTILLATE OIL UNDER MIDDLE PRESSURE

Title:

A PROCESS FOR HYDROCRACKING A HEAVY DISTILLATE OIL UNDER MIDDLE PRESSURE

Document Type and Number:

WIPO Patent Application WO/1998/000384

Kind Code:

A1

Abstract:

The present invention relates to a process for producing middle distillates by hydrocracking a heavy distillate oil under middle pressure in which a hydrofining catalyst and a hydrocracking catalyst are used in series and once-through operation. The once-through volume conversion to 350 �C products is up to 80 vol.%. The yield and selectivity of middle distillates are greater than 40 wt.% and less than 50 wt.%, respectively. The process is particularly suited to treat heavy distillate oil having the nitrogen content of up to 1500 ppmw, the sulfur content of up to 3.5 wt.% and dry point of the boiling range of higher than 500 �C to produce the feed for reforming process jet fuel, the low sulfur content diesel, the feed for catalytic cracker and the feed for producing ethylene.

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Inventors:

ZHANG YANPING (CN)
SHI YULIN (CN)
XIONG ZHENLIN (CN)
SHI JIANWEN (CN)
NIE HONG (CN)
SHI YAHUA (CN)
HU ZHIHAI (CN)

Application Number:

PCT/CN1997/000064

Publication Date:

January 08, 1998

Filing Date:

June 27, 1997

Export Citation:

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Assignee:

CHINA PETROCHEMICAL CORP (CN)
RES INST PETROLEUM PROCESSING (CN)

International Classes:

B01J23/888; B01J27/132; B01J29/076; B01J29/16; B01J29/26; C10G45/08; C10G47/16; C10G47/18; C10G65/12; (IPC1-7): C07C45/08; C07C47/04

Foreign References:

US4859312A	1989-08-22
US4686030A	1987-08-11
US4572778A	1986-02-25

Other References: