Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/6505
Title: Is steam addition necessary for the landfill gas fueled solid oxide fuel cells?
Authors: Ni, M 
Keywords: Landfill gas
Solid oxide fuel cell
Methane carbon dioxide reforming
Modeling
Issue Date: 13-Dec-2013
Publisher: Pergamon Press
Source: International journal of hydrogen energy, 13 Dec. 2013, v. 38, no. 36, p. 16373-16386 How to cite?
Journal: International journal of hydrogen energy 
Abstract: Landfill gas in Hong Kong – a mixture of about 50% (by volume) CH₄ and 50% CO₂ – can be utilized for power generation in a solid oxide fuel cell (SOFC). Conventional way of utilizing CH₄ in a SOFC is by adding H₂O to CH₄ to initiate methane steam reforming (MSR) and water gas shift reaction (WGSR). As the methane carbon dioxide reforming (MCDR: CH₄ + CO₂ ↔ 2CO + 2 H₂) is feasible in the SOFC anode, it is unknown whether H2O is needed or not for landfill gas fueled SOFC. In this study, a numerical model is developed to investigate the characteristics of SOFC running on landfill gas. Parametric simulations show that H₂O addition may decrease the performance of short SOFC at typical operating conditions as H₂O dilute the fuel concentration. However, it is interesting to find that H₂O addition is needed at reduced operating temperature, lower operating potential, or in SOFC with longer gas channel, mainly due to less temperature reduction in the downstream and easier oxidation of H₂ than CO. This preliminary study could help identify strategies for converting landfill gas into electrical power in Hong Kong.
URI: http://hdl.handle.net/10397/6505
ISSN: 0360-3199
EISSN: 1879-3487
DOI: 10.1016/j.ijhydene.2013.10.006
Rights: Copyright © 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
Posted with permission of International Association of Hydrogen Energy.
Appears in Collections:Journal/Magazine Article

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