Title:
METHOD OF THERMAL CRACKING FOR PETROLEUM-DERIVED HEAVY OIL AND THERMAL CRACKING APPARATUS THEREFOR
Document Type and Number:
WIPO Patent Application WO/2008/038490
Kind Code:
A1
Abstract:
A method comprising, in the operation of a thermal cracking apparatus including
a heating furnace, two or more lines each having two reaction vessels and a distillation
column, repeating in each of the lines the cycle of charging a petroleum-derived
heavy oil from the heating furnace into the first reaction vessel and subsequently
the second reaction vessel; in each of the reaction vessels, bringing steam into
direct contact with the petroleum-derived heavy oil to thereby induce thermal
cracking reaction; and causing formed gaseous substances and steam to flow out
and be fed into the distillation column to thereby carry out a distillation separation,
wherein the above cycle is provided with a phase difference so that the times of
commencement of charging into the first reaction vessel are different among
the lines. As a result, there can be attained improvement of an instability of
inflow rate of cracking products into the distillation column, an enhancement
of cracking performance, an increase of cracking product processing rate, etc.
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Inventors:
TAMAGAWA ATSUSHI (JP)
NOMURA MAKOTO (JP)
SHIBUTANI ISAO (JP)
MAEHARA KEIJI (JP)
TAKEUCHI HISAO (JP)
NOMURA MAKOTO (JP)
SHIBUTANI ISAO (JP)
MAEHARA KEIJI (JP)
TAKEUCHI HISAO (JP)
Application Number:
PCT/JP2007/066753
Publication Date:
April 03, 2008
Filing Date:
August 29, 2007
Export Citation:
Assignee:
CHIYODA CORP (JP)
FUJI OIL CO LTD (JP)
TAMAGAWA ATSUSHI (JP)
NOMURA MAKOTO (JP)
SHIBUTANI ISAO (JP)
MAEHARA KEIJI (JP)
TAKEUCHI HISAO (JP)
FUJI OIL CO LTD (JP)
TAMAGAWA ATSUSHI (JP)
NOMURA MAKOTO (JP)
SHIBUTANI ISAO (JP)
MAEHARA KEIJI (JP)
TAKEUCHI HISAO (JP)
International Classes:
C10G9/36
Foreign References:
| JPS5415444B2 | 1979-06-14 | |||
| JPS5036441B1 | 1975-11-25 | |||
| JPS5715795B2 | 1982-04-01 | |||
| JPS6338076B2 | 1988-07-28 | |||
| JPH0243285A | 1990-02-13 | |||
| JPH11263982A | 1999-09-28 | |||
| JPH0816450B2 | 1996-02-21 | |||
| JPS5415444B2 | 1979-06-14 | |||
| JPS5715795B2 | 1982-04-01 | |||
| JPS6338076B2 | 1988-07-28 |
Other References:
See also references of EP 2072602A4
Attorney, Agent or Firm:
NARUSE, Katsuo et al. (TKK Nishishinbashi Bldg. 11-5, Nishi-shinbashi 2-chome, Minato-k, Tokyo 03, JP)
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