Power Generation Characteristics of Solid Oxide Fuel Cells for Coal Gas
Open Access
- 1 January 2001
- journal article
- Published by The Electrochemical Society in ECS Proceedings Volumes
- Vol. 2001-16 (1) , 205-213
- https://doi.org/10.1149/200116.0205pv
Abstract
Power generation characteristics of tubular-type solid oxide fuel cells were studied for simulated coal gas, consisting mainly of CO, H2, H2O, and a carrier gas. Current-voltage characteristics of a single cell were measured as a function of various operational parameters including the H2-to-CO ratio, the type of carrier gas such as He, N2, and Ar, temperature, the fuel-to-carrier gas ratio, and water vapor concentration. It has been experimentally confirmed that the use of CO-rich fuel gas results in comparable performance to that of H2-rich gases. We have found that the current-voltage characteristics depend on the carrier gas, indicating the importance of gas transport in porous anodes for anodic polarization.Keywords
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