Method of supplying fuel gas to a fuel cell

Details Method of supplying fuel gas to a fuel cell Method of supplying fuel gas to a fuel cell

1998-01-27

2000-04-04

Nuzzolillo, Maria

Chemistry: electrical current producing apparatus, product, and

Having magnetic field feature

429 26, H01M 806

Patent

active

060459336

ABSTRACT:
A fuel gas supply device is equipped with a reformer for conducting steam reforming of methanol which is supplied from a methanol tank, and a hydrogen gas supply means for supplying hydrogen gas only, which is contained in the fuel gas derived from the reformer, to a fuel cell. By passing the fuel gas through a hydrogen permeable membrane or a pressure-swing adsorption device, a fuel gas in which any unreacted methanol is reliably removed therefrom can be supplied to the fuel cell. According to further embodiments, unreacted methanol is caused to positively react on a fuel electrode side of a fuel cell stack, so as to remove excess amounts of unreacted methanol from a fuel chamber. The method can further include a step of controlling the humidity of the fuel gas, by either removal or supply of moisture, before the fuel gas is supplied to the fuel cell.

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