(19) |
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(11) |
EP 0 250 136 A3 |
(12) |
EUROPEAN PATENT APPLICATION |
(88) |
Date of publication A3: |
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15.03.1989 Bulletin 1989/11 |
(43) |
Date of publication A2: |
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23.12.1987 Bulletin 1987/52 |
(22) |
Date of filing: 05.06.1987 |
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(51) |
International Patent Classification (IPC)4: C10G 9/00 |
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(84) |
Designated Contracting States: |
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DE ES FR GB IT |
(30) |
Priority: |
09.06.1986 US 871946
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(71) |
Applicant: FOSTER WHEELER USA CORPORATION |
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Livingston
New Jersey 07039 (US) |
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(72) |
Inventors: |
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- McGrath, Michael John
Andover
Sussex
New Jersey (US)
- Godino, Rino Lodivico
Livingston
New Jersey (US)
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(74) |
Representative: Bowman, Paul Alan et al |
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LLOYD WISE, TREGEAR & CO.,
Commonwealth House,
1-19 New Oxford Street London WC1A 1LW London WC1A 1LW (GB) |
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Remarks: |
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A request for correction of the description has been filed pursuant to Rule 88 EPC.
A decision on the request will be taken during the proceedings before the Examining
Division (Guidelines for Examination in the EPO, A-V, 2.2). |
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(57) A process for reducing the amount of coke formed in the coke drums of a delayed coking
process by reducing the partial pressure of the heavy oil in the coke drums.