Title:
PROCESS TO PREPARE A HYDROGEN RICH GAS MIXTURE
Document Type and Number:
WIPO Patent Application WO/2011/000792
Kind Code:
A3
Abstract:
The invention is directed to a process to prepare a hydrogen rich gas mixture from a solid sulphur-and halogen-containing carbonaceous feedstock. The process involves the following steps. Step (a): gasification of the solid carbonaceous feedstock with an oxygen- containing gas to obtain a gas mixture comprising halogen compounds, sulphur compounds, hydrogen and at least 50vol.% carbon monoxide, on a dry basis. Step (b): contacting the gas mixture with a quench gas or quench liquid to reduce the temperature of the gas mixture to below 900°C. Step (c) contacting the gas mixture with water having a temperature of between 150 and 250°C to obtain a gas mixture comprising between 50 and 1000ppm halogen and having a steam to carbon monoxide molar ratio of between 0.2:1 and 0.9:1. Step (d): subjecting the gas mixture obtained in step (c) to a water gas shift reaction wherein part or all of the carbon monoxide is converted with the steam to hydrogen and carbon dioxide in the presence of a catalyst as present in one fixed bed reactor or in a series of more than one fixed bed reactors and wherein the temperature of the gas mixture as it enters the reactor or reactors is between 190 and 230°C. Step (e): carbon dioxide and sulphur compounds are separated from the shifted gas mixture obtained in step (d) by contacting the shifted gas mixture with a solvent comprising dialkyl ethers of polyethylene glycol.
Inventors:
VAN DEN BERG ROBERT (NL)
FLEYS MATTHIEU SIMON HENRI (NL)
GEUZEBROEK FRANK HAIKO (NL)
PRINS MARK JAN (NL)
FLEYS MATTHIEU SIMON HENRI (NL)
GEUZEBROEK FRANK HAIKO (NL)
PRINS MARK JAN (NL)
Application Number:
PCT/EP2010/059111
Publication Date:
June 03, 2011
Filing Date:
June 28, 2010
Export Citation:
Assignee:
SHELL INT RESEARCH (NL)
VAN DEN BERG ROBERT (NL)
FLEYS MATTHIEU SIMON HENRI (NL)
GEUZEBROEK FRANK HAIKO (NL)
PRINS MARK JAN (NL)
VAN DEN BERG ROBERT (NL)
FLEYS MATTHIEU SIMON HENRI (NL)
GEUZEBROEK FRANK HAIKO (NL)
PRINS MARK JAN (NL)
International Classes:
C10K3/04; C01B3/16; C10J3/48
Foreign References:
| US4981661A | 1991-01-01 | |||
| DE1149486B | 1963-05-30 | |||
| EP1939138A1 | 2008-07-02 | |||
| EP0550242A1 | 1993-07-07 | |||
| US5512260A | 1996-04-30 | |||
| US20060233687A1 | 2006-10-19 |
Other References:
CHIESA P ET AL: "Co-production of hydrogen, electricity and CO2 from coal with commercially ready technology. Part A: Performance and emissions", INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, ELSEVIER SCIENCE PUBLISHERS B.V., BARKING, GB, vol. 30, no. 7, 1 July 2005 (2005-07-01), pages 747 - 767, XP025263097, ISSN: 0360-3199, [retrieved on 20050701]
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY: "SITE Technology Capsule - Texaco Gasification Process", 1 April 1995 (1995-04-01), XP002630762, Retrieved from the Internet [retrieved on 20110331]
XUE E ET AL: "Water-gas shift conversion using a feed with low steam to carbon monoxide ratio and containing sulPHUR", CATALYSIS TODAY, AMSTERDAM, NL, vol. 30, 1 January 1996 (1996-01-01), pages 107 - 118, XP002198478
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY: "SITE Technology Capsule - Texaco Gasification Process", 1 April 1995 (1995-04-01), XP002630762, Retrieved from the Internet
XUE E ET AL: "Water-gas shift conversion using a feed with low steam to carbon monoxide ratio and containing sulPHUR", CATALYSIS TODAY, AMSTERDAM, NL, vol. 30, 1 January 1996 (1996-01-01), pages 107 - 118, XP002198478
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