Title:
GASIFICATION OF A CARBONACEOUS MATERIAL
Document Type and Number:
WIPO Patent Application WO/2012/073130
Kind Code:
A3
Abstract:
A method of operating a pressurized gasifier (100) includes feeding a carbonaceous material (21) into a pressurized gasification vessel (14) of the gasifier (100) where the gasification vessel is at a pressure P1. Steam (22) as a temperature moderating and gasification agent is fed through a steam ejector (102) into the gasification vessel (14), the steam entering the ejector (102) at a pressure P2 and acting as a motive fluid for the steam ejector (102). Oxygen (24) is also fed into the gasification vessel through the steam ejector (102), the oxygen entering the steam ejector (102) at a pressure P3, where P2 > P1 > P3. The carbonaceous material is gasified in the presence of steam and oxygen at the pressure P1 to produce ash and synthesis gas which includes at least CO and H 2, with ash (23) and synthesis gas (25) being removed from the gasification vessel.
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Inventors:
ERNST WERNER SIEGFRIED (ZA)
Application Number:
PCT/IB2011/054885
Publication Date:
August 30, 2012
Filing Date:
November 03, 2011
Export Citation:
Assignee:
SASOL TECH PTY LTD (ZA)
ERNST WERNER SIEGFRIED (ZA)
ERNST WERNER SIEGFRIED (ZA)
International Classes:
C10J3/16; C10J3/02; C10J3/06; C10J3/20; C10J3/72
Foreign References:
| US20060045827A1 | 2006-03-02 | |||
| GB718410A | 1954-11-10 | |||
| US3840354A | 1974-10-08 | |||
| US3782913A | 1974-01-01 | |||
| US3988123A | 1976-10-26 |
Other References:
"Perry's chemical engineers' handbook", 1 January 2008, MCGRAW-HILL, article "Perry's chemical engineers' handbook", pages: 10-1 - 10-111, XP055027784
Attorney, Agent or Firm:
VAN DER WALT, Louis, Stephanus et al. (PO Box 1014, 0001 Pretoria, ZA)
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