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.
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Inventors:
SCHMIDT MARTIN (GB)
LEAH ROBERT (GB)
DEVRIENDT JAMES (GB)
EL KOURY KARIM (GB)
HARRINGTON MATTHEW (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:
Assignee:
CERES IP CO LTD (GB)
SCHMIDT MARTIN (GB)
LEAH ROBERT (GB)
DEVRIENDT JAMES (GB)
EL KOURY KARIM (GB)
HARRINGTON MATTHEW (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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