کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1287018 | 973209 | 2006 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: High-rate electrochemical partial oxidation of methane in solid oxide fuel cells High-rate electrochemical partial oxidation of methane in solid oxide fuel cells](/preview/png/1287018.png)
This paper describes results on direct-methane solid oxide fuel cell (air, LSM-YSZ|YSZ|Ni-YSZ, CH4) operation for combined electricity and syngas production. Thermodynamic equilibrium predictions showed that efficient methane conversion to syngas is expected for SOFC operating temperature >700 °C and O2−/CH4 ratios of ≈1. A simple thermal analysis was used to determine conditions where the cell produces enough heat to self-sustain its operating temperature; relatively low cell voltage and O2−/CH4 ratios > 1 were found to be useful. Fuel cells operated at T ≈ 750 °C, V ≈ 0.4 V, and O2−/CH4 ≈ 1.2 yielded electrical power output of ∼0.7 W cm−2 and syngas production rates of ∼20 sccm cm−2. Stable cell operation without coking for >300 h was achieved.
Journal: Journal of Power Sources - Volume 161, Issue 1, 20 October 2006, Pages 460–465