Title:
USING SHIFTED SYNGAS TO REGENERATE SCR TYPE CATALYST
Document Type and Number:
WIPO Patent Application WO2003020406
Kind Code:
A3
Abstract:
The present invention integrates a gasification unit (2) into a catalyst/absorber process for removing pollutants from the combustion product of a gas turbine (8). A small slipstream of syngas from the gasification unit (2) is cleaned in an acid gas removal unit (4) to remove hydrogen sulfide. The syngas is then processed in a shift unit (18) where the carbon monoxide and any COS present in the syngas are converted into hydrogen and carbon dioxide. The shifted syngas, still containing trace amounts of hydrogen sulfide, is then processed in a zinc oxide bed (6), where the trace hydrogen sulfide is removed. The resultant stream is hydrogen and carbon dioxide rich, making it ideal for use in regenerating the catalyst/absorber system.
Inventors:
KRANZ DAVID R
Application Number:
PCT/US2002/020295
Publication Date:
October 30, 2003
Filing Date:
June 26, 2002
Export Citation:
Assignee:
TEXACO DEVELOPMENT CORP (US)
International Classes:
B01D53/86; B01D53/96; B01J23/94; B01J23/96; B01J38/04; B01J38/10; (IPC1-7): B01D53/34
Foreign References:
| US5762885A | 1998-06-09 | |||
| US4088736A | 1978-05-09 | |||
| US5451558A | 1995-09-19 | |||
| US5607650A | 1997-03-04 | |||
| US5665321A | 1997-09-09 |
Other References:
See also references of EP 1434643A4
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