Fuel cell shutdown with steam purging

Details Fuel cell shutdown with steam purging Fuel cell shutdown with steam purging

H - Electricity

01

M

H01M 8/04 (2006.01) H01M 8/06 (2006.01)

Patent

CA 2562716

The present invention relates to a method and apparatus for steam purging a solid oxide fuel cell stack. Purging the SOFC stack with steam has a physical flushing effect, removing carbon monoxide containing reformate and free oxygen gas from the anode area thereby reducing the potential for nickel oxide or nickel carbonyl formation.

La présente invention se rapporte à un procédé et à un appareil permettant d'utiliser de la vapeur pour purger un empilement de pile à combustible à oxyde solide. Purger l'empilement d'une SOFC (Solid Oxide Fuel Cell) avec de la vapeur produit un effet de nettoyage à grande eau, ceci permettant de supprimer le réformat contenant du monoxyde de carbone ainsi que l'oxygène gazeux libre de la zone de l'anode et de réduire ainsi le potentiel de formation d'oxyde de nickel ou de carbonyle de nickel.

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