Method of operating a direct dme fuel cell system
AssigneeDanmarks Tekniske Universitet (DTU)
InventorsJens Oluf Jensen, Qingfeng Li, Niels J. Bjerrum, Thomas Steenberg
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Abstract
The present invention relates to a method of operating a fuel cell system comprising one or more fuel cells with a proton exchange membrane, wherein the membrane is composed of a polymeric material comprising acid-doped polybenzimidazole (PBI). The method comprises adjusting the operating temperature of the fuel cell to between 120 and 250° C., supplying an oxidant stream to the cathode, and supplying a humidified fuel stream to the anode, said fuel stream comprising dimethyl ether, wherein dimethyl ether is directly oxidised at the anode.
Claims15
A method of operating a fuel cell system comprising one or more fuel cells of the type comprising a cathode and an anode each comprising catalyst means, and a proton exchange membrane, wherein the membrane is composed of a polymeric material comprising acid-doped polybenzimidazole (PBI), the method comprising
- adjusting the operating temperature of the fuel cell to between 120 and 250° C.,
- supplying an oxidant stream to the cathode, and
- supplying a humidified fuel stream to the anode, said fuel stream comprising dimethyl ether, wherein dimethyl ether is directly oxidised at the anode.
Dependencies are inferred from the claim text.