Journal article · Conference paper
Direct Coal Oxidation in Modified Solid Oxide Fuel Cells
Department of Energy Conversion and Storage, Technical University of Denmark1
Ceramic Engineering & Science, Department of Energy Conversion and Storage, Technical University of Denmark2
Centro Nacional del Hidrogeno3
Fundamental Electrochemistry, Department of Energy Conversion and Storage, Technical University of Denmark4
Hybrid direct carbon fuel cells employ a classical solid oxide fuel cell together with carbon dispersed in a carbonate melt on the anode side. In a European project, the utilization of various coals has been investigated with and without addition of an oxidation catalyst to the carbon-carbonate slurry or anode layer.
The nature of the coal affects both open circuit voltage and power output. Highest OCV and power densities were observed for bituminous coal and by adding manganese oxide or praseodymium-doped ceria to the carbon/carbonate mixture. Comparing the carbon black fueled performance of an anode supported (315 µm anodes) and cathode supported cell (15 µm anode) indicates a superior performance of the latter.
Using un-catalyzed biomass (charcoal) as fuel results in an OCV of 941 mV and a maximum power density of 78 mW/cm2 at 755ºC similar to the power output of manganese oxide catalyzed bituminous coal (73 mW/cm2). © 2015 ECS - The Electrochemical Society
| Language: | English |
|---|---|
| Publisher: | The Electrochemical Society |
| Year: | 2015 |
| Pages: | 2685-2694 |
| Proceedings: | ECS Conference on Electrochemical Energy Conversion & Storage with SOFC–XIV |
| ISSN: | 19386737 and 19385862 |
| Types: | Journal article and Conference paper |
| DOI: | 10.1149/06801.2685ecst |
| ORCIDs: | Gil, Vanesa , Kammer Hansen, Kent and Holtappels, Peter |
