کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7714849 | 1497441 | 2015 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of carbon monoxide, carbon dioxide, and methane on nickel/yttria-stabilized zirconia-based solid oxide fuel cells performance for direct coupling with a gasifier
ترجمه فارسی عنوان
اثرات مونوکسید کربن، دی اکسید کربن و متان بر عملکرد سلول های اکسید جامد بر پایه نیکل / اتریتی تثبیت شده روی زیرکونیا برای اتصال مستقیم با یک گازگر
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
چکیده انگلیسی
This work focuses on the role of CO and CO2 usually present in syngas generated by biomass gasification when they are flowed in a Ni-YSZ-based SOFC. Polarization, power versus intensity and electrochemical impedance spectroscopy measurements are performed and the theoretical aspect is enhanced with comparison with values of the Nernst potentials of the two H2O/H2 and CO2/CO couples. The CO as electrochemical reactant is clearly highlighted, and also compared to H2. Indeed, power density values of 460 mW cmâ2 and 540 mW cmâ2 are obtained at 750 °C when the cell is fueled with a 50% CO-50% N2 mixture and a 50% H2-50% N2 mixture respectively, and the use of CO leads to higher power density values when the percentage of the fuel in the Fuel/N2 mixture is lower than 27%, the use of higher amounts of CO inducing a large increase of the total resistance of the cell. The impact on the efficiency of the cell of the presence of CH4 is also examined using electrochemical measurements. Finally, power density values of 502 mW cmâ2 is obtained at 750 °C when the cell is fueled with a 50% N2-20% CO-17% H2-10% CO2-3% CH4 mixture which appears to a be a realistic composition corresponding to the exhaust of the gasifier.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 40, Issue 32, 24 August 2015, Pages 10231-10241
Journal: International Journal of Hydrogen Energy - Volume 40, Issue 32, 24 August 2015, Pages 10231-10241
نویسندگان
M. Lebreton, B. Delanoue, E. Baron, F. Ricoul, A. Kerihuel, A. Subrenat, O. Joubert, A. Le Gal La Salle,