Abstract
Utilization of hydrocarbon fuels such as methane and bottled natural gas has been successfully demonstrated in the operation of high-temperature solid oxide electrolyte fuel cells. Previous experimental work is reviewed, and the operation of air tubular fuel cells containing yttria-stabilized-zirconia solid electrolyte at 1000 degrees C and 250 mA/cm/sup 2/ current density, maintaining fuel and oxidant utilizations of 85% and 25%, respectively, is reported. Stable cell voltages and hydrocarbon reformation profiles along the cell length were obtained during the cell tests. >
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