Title:
METHOD OF REFINING CRUDE OIL
Document Type and Number:
WIPO Patent Application WO/1992/010557
Kind Code:
A1
Abstract:
A method of refining crude oil, which can reduce costs for facility and operation and ensure stable operation under simple control. The method is characterized in that, after distilling and separating naphtha fraction in crude oil, remaining fractions after removal of the naphtha fraction are desulfurized while brought into contact with desulfurizing catalyst and then distilled to be separated into respective fractions. When refining remaining fractions after removal of said naphtha fraction, dexterous introduction of hydrogenating refining treatment, high pressure separation treatment, or residual heavy oil fluid catalytic cracking treatment makes it possible to obtain fractions of kerosine and gas oil of high quality and to increase a yield of intermediate fractions of said oils.
Inventors:
TANAKA MEISHI (JP)
SUGIYAMA SHUJI (JP)
SUGIYAMA SHUJI (JP)
Application Number:
PCT/JP1991/001377
Publication Date:
June 25, 1992
Filing Date:
October 09, 1991
Export Citation:
Assignee:
IDEMITSU KOSAN CO (JP)
International Classes:
C10G45/02; C10G65/04; C10G69/04; (IPC1-7): C10G45/08; C10G65/04; C10G67/02; C10G69/04
Foreign References:
| JPS5544796B1 | 1980-11-14 | |||
| JPS5518499A | 1980-02-08 | |||
| US3775290A | 1973-11-27 | |||
| JPS4226104B1 | ||||
| JPS401258B1 | ||||
| JPS5037043B2 | 1975-11-29 | |||
| US3671419A | 1972-06-20 | |||
| US3098029A | 1963-07-16 |
Other References:
See also references of EP 0514549A1
Attorney, Agent or Firm:
Ohtani, Tamotsu (10-13 Toranomon 5-chom, Minato-Ku Tokyo 105, JP)
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