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The effect of synthesis gas composition on the performance of Ni-based solid oxide fuel cells

Drewery, M., Kennedy, E., Alenazey, F., Dlugogorski, B. and Stockenhuber, M. (2015) The effect of synthesis gas composition on the performance of Ni-based solid oxide fuel cells. Chemical Engineering Research and Design, 101 . pp. 22-26.

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Link to Published Version: http://dx.doi.org/10.1016/j.cherd.2015.07.008
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Abstract

An increased interest in using hydrocarbons in solid oxide fuel cells for the production of power has led to research into operation on synthesis (syn) gas, a mixture of hydrogen and carbon monoxide. Hydrocarbons are typically reformed, either internally or in an external reformer prior to the fuel cell, producing syngas with various H2:CO ratios depending on the hydrocarbon used. This paper examines the effect of varying the H2:CO ratio with respect to C1 to C4 steam reforming reactions and additionally a mixture containing a higher ratio of carbon monoxide. It was found that there was no significant relationship between cell performance and H2:CO ratio when a high feed rate was employed. For low flow rates, however, the high carbon monoxide concentration resulted in a significant decrease in cell performance. It was determined that this was caused by reversible carbon deposition as opposed to a decrease in carbon monoxide reactivity.

Publication Type: Journal Article
Murdoch Affiliation: School of Engineering and Information Technology
Publisher: Elsevier
Copyright: © 2015 The Institution of Chemical Engineers.
URI: http://researchrepository.murdoch.edu.au/id/eprint/28170
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