Electrochemical fuel cell assembly with integral selective...

Details Electrochemical fuel cell assembly with integral selective... Electrochemical fuel cell assembly with integral selective...

H - Electricity

01

M

H01M 8/06 (2006.01) H01M 8/02 (2006.01) H01M 8/24 (2006.01)

Patent

CA 2172166

A method and apparatus (212) selectively oxidizes, within the fuel cell assembly (210), the carbon monoxide present in a fuel stream (222) fed to the assembly. A quantity of catalyst is contained within at least a portion of a fuel stream passageway within the stack. The carbon monoxide is selectively oxidized by the catalyst to carbon dioxide, and carbon monoxide produced by the reverse water-shift reaction is also oxidized.

Un procédé et un appareil (212) permettent d'oxyder sélectivement dans une cellule électrochimique (210) le monoxyde de carbone présent dans un flux de combustible (222) fourni à la cellule électrochimique. Une certaine quantité de catalyseur est contenue dans au moins une partie du passage du flux de combustible à l'intérieur de la pile. Le monoxyde de carbone est sélectivement oxydé par le catalyseur de façon à se transformer en dioxyde de carbone. Le monoxyde de carbone produit par la réaction inverse de conversion à la vapeur d'eau est également oxydé.

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