Conversion of methane to syngas in a solid oxide fuel cell with Ni-SDC anode and LSGM electrolyte |
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Authors: | Xinge Zhang Satoshi OharaHong Chen Takehisa Fukui |
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Affiliation: | Japan Fine Ceramics Center, 2-4-1 Mutsuo, Atsuta-ku, Nagoya 456-8387, Japan |
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Abstract: | A solid oxide fuel cell constructed from Ni-SDC anode and LSGM electrolyte was applied to the partial oxidation of methane to syngas (CO+H2) at 700-800 °C with the merits of co-generation of electricity and controllable O2 supply. It was found that the co-generated syngas at H2/CO ratio of 1.4-2.0 varied with applied current densities, CH4 flow rates and operating temperatures. The cell voltage at 100 mA cm−2 and 800 °C was 0.90 V, i.e. about 90 mW cm−2 power density could be obtained. The cell operating at 50 mA cm−2 for 24 h almost showed no degradation of the cell performance. The observed carbon deposition seemed mainly taking place by CH4 cracking reaction. |
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Keywords: | Methane conversion SOFC Syngas Ni-SDC anode |
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