The Use of Hydrogen-Depleted Coal Syngas in Solid Oxide Fuel Cells
Electrolyte-supported solid oxide fuel cells were operated using hydrogen, simulated coal syngas, and a hydrogen-depleted syngas as fuel. Open circuit voltages closely matched theoretical predictions, and carbon deposition was completely avoided. When 50% of the hydrogen flow rate was removed from the syngas mixture while increasing the overall flow rate to maintain the same fuel utilization, the drop in power density of the cell was less than 8%. Switching from syngas to hydrogen-depleted syngas caused an average increase in the area-specific resistance of 0.027 Ω cm2, or 4%. The results of this study suggest that solid oxide fuel cells could operate successfully using syngas that has been partially stripped of hydrogen for other purposes.
D. D. Burnette et al., "The Use of Hydrogen-Depleted Coal Syngas in Solid Oxide Fuel Cells," Journal of Power Sources, vol. 182, no. 1, pp. 329-333, Elsevier B.V, Jul 2008.
The definitive version is available at https://doi.org/10.1016/j.jpowsour.2008.03.039
Mechanical and Aerospace Engineering
Keywords and Phrases
Carbon Deposition; Coal Syngas; Gadolinium-Doped Ceria; Hydrogen-Depleted Syngas; Scandia-Stabilized Zirconia; Solid Oxide Fuel Cells
International Standard Serial Number (ISSN)
Article - Journal
© 2008 Elsevier B.V, All rights reserved.
15 Jul 2008