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http://dx.doi.org/10.5229/JKES.2007.10.2.110

Effect of the Molar H2O/ and the Molar O2/C Ratio on Long-Term Performance of Diesel Autothermal Reformer for Solid Oxide Fuel Cell  

Yoon, Sang-Ho (New Energy Conversion System Lab., Korea Advanced Institute of Science and Technology (KAIST), Department of Mechanical Engineering)
Kang, In-Yong (New Energy Conversion System Lab., Korea Advanced Institute of Science and Technology (KAIST), Department of Mechanical Engineering)
Bae, Gyu-Jong (New Energy Conversion System Lab., Korea Advanced Institute of Science and Technology (KAIST), Department of Mechanical Engineering)
Bae, Joong-Myeon (New Energy Conversion System Lab., Korea Advanced Institute of Science and Technology (KAIST), Department of Mechanical Engineering)
Publication Information
Journal of the Korean Electrochemical Society / v.10, no.2, 2007 , pp. 110-115 More about this Journal
Abstract
Solid oxide fuel cell(SOFC) has high fuel flexibility due to its high operating temperatures. Hydrocarbonaceous fuels such as diesel has several advantages such as high energy density and established infrastructure for fuel cell applications. However diesel reforming has technical problems like coke formation in a reactor, which results in catastrophic failure of whole system. Performance degradation of diesel autothermal reforming (ATR) leads to increase of undesirable hydrocarbons at reformed gases and subsequently degrades SOFC performance. In this study, we investigate the degradation of SOFC performance(OCV, open circuit voltage) under hydrocarbon(n-Butane) feeds and characteristics of diesel performing under various ratios of reactants($H_2O/C,\;O_2/C$ molar ratios) for improvement of SOFC performance. Especially we achieved relatively high performance of diesel ATR under $H_2O/C=0.8,\;O_2/C=3$ condition.
Keywords
Solid oxide fuel cell; Hydrogen; Autothermal reforming; Carbon deposition; Ethylene;
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