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Title:
STEAM REFORMING METHOD FOR FUEL CELLS
Document Type and Number:
WIPO Patent Application WO2008001119
Kind Code:
A8
Abstract:
Methods of reforming hydrocarbon fuel for supply at start-up to a fuel cell stack comprising at least one solid oxide fuel cell, during transient load increases and during shutdown using a steam reformer (SR), alone initially run as partial oxidation reformer (CPOX) at start-up (or preferably with a separate CPOX) to heat cell and SR to operating temperature whereupon CPOX is shut down; the CPOX is started up to provide extra fuel rapidly for the fuel cell stack when the latter suffers increased load; and at shutdown the reforming is switched to CPOX to allow inert/blanket gas containing mostly nitrogen to be supplied to the cell stack whilst it cools enough to allow air entry. The CPOX may be supplied with water/steam to permit some autothermal reforming.

Inventors:
SCHMIDT MARTIN (GB)
LEAH ROBERT (GB)
DEVRIENDT JAMES (GB)
EL KOURY KARIM (GB)
HARRINGTON MATTHEW (GB)
Application Number:
PCT/GB2007/002451
Publication Date:
March 27, 2008
Filing Date:
June 29, 2007
Export Citation:
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Assignee:
CERES IP CO LTD (GB)
SCHMIDT MARTIN (GB)
LEAH ROBERT (GB)
DEVRIENDT JAMES (GB)
EL KOURY KARIM (GB)
HARRINGTON MATTHEW (GB)
International Classes:
H01M8/06; H01M8/12
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