Liquid feed solid polymer fuel cell system

Details Liquid feed solid polymer fuel cell system Liquid feed solid polymer fuel cell system

H - Electricity

01

M

H01M 8/04 (2006.01)

Patent

CA 2320766

A liquid feed solid polymer fuel cell system employs a fuel circulating subsystem to direct unreacted fuel from the anode outlet to the anode inlet. The subsystem comprises a pump (34) for circulating the fuel, a gas separator (52) for separating out reaction product gases, a cooler (46) for cooling the circulating fuel, and a cooler bypass line (5) such that circulating fuel can bypass the cooler in accordance with the temperature of the circulating fuel, for example during start-up. The subsystem may also comprise an ion exchanger (74) to purify the circulating fuel stream.

L'invention porte sur pile à combustible à polymère solide alimentée par un liquide dans laquelle un sous-système fait repasser le carburant n'ayant pas réagi de la sortie d'anode à l'entrée d'anode. Le sous-système comprend une pompe (34) de circulation, un séparateur (52) des produits gazeux de la réaction, un refroidisseur (46) du carburant circulant, et une dérivation (5) permettant de contourner le refroidisseur en fonction de la température du fluide circulant, par exemple lors de la mise en route. Le sous-système peut également comporter un échangeur (74) d'ions pour purifier le courant de carburant circulant.

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