Title:
METHOD AND APPARATUS FOR QUENCHING THE COKE DRUM VAPOUR LINE IN A COKER
Document Type and Number:
WIPO Patent Application WO2002022762
Kind Code:
A3
Abstract:
A method and apparatus for quenching the coke drum vapour line from a coke drum to the main fractionator in a coker unit whereby the volume of quench liquid prevents the drum vapour line from plugging with carbon-based deposits. A differential pressure control technique is utilized to quench the drum vapours being delivered to the fractionator. Vapour line quench control by differential pressure prevents over-quenching of the vapour line during a coke drum switch, unit start-up, or slowdown as well as under-quenching during drum warm-ups.
Inventors:
HAIK STEPHEN MICHEL
Application Number:
PCT/EP2001/010572
Publication Date:
June 20, 2002
Filing Date:
September 12, 2001
Export Citation:
Assignee:
SHELL INT RESEARCH (NL)
International Classes:
C10B41/00; C10B55/00; C10G9/00; C10B57/04; (IPC1-7): C10B55/00; C10B41/08; C10G9/00
Domestic Patent References:
| WO1998030301A1 | 1998-07-16 |
Other References:
"ADVANCED CONTROL AND INFORMATION SYSTEMS '99: Delayed coker", HYDROCARBON PROCESSING, vol. 78, no. 9, September 1999 (1999-09-01), GULF PUBLISHING CO. HOUSTON., US, pages 107, XP002193208, ISSN: 0018-8190
R. JAISINGHANI ET AL.: "Delayed coker fractionator advanced control", HYDROCARBON PROCESSING, vol. 72, no. 8, August 1993 (1993-08-01), GULF PUBLISHING CO. HOUSTON., US, pages 173 - 178, XP002193209, ISSN: 0018-8190
R. JAISINGHANI ET AL.: "Delayed coker fractionator advanced control", HYDROCARBON PROCESSING, vol. 72, no. 8, August 1993 (1993-08-01), GULF PUBLISHING CO. HOUSTON., US, pages 173 - 178, XP002193209, ISSN: 0018-8190
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