Experimental and modeling study of high performance direct carbon solid oxide fuel cell with in situ catalytic steam-carbon gasification reaction
MetadataShow full item record
In this paper, 2D models for direct carbon solid oxide fuel cells (DC-SOFCs) with in situ catalytic steam-carbon gasification reaction are developed. The simulation results are found to be in good agreement with experimental data. The performance of DC-SOFCs with and without catalyst are compared at different operating potential, anode inlet gas flow rate and operating temperature. It is found that adding suitable catalyst can significantly speed up the in situ steam-carbon gasification reaction and improve the performance of DC-SOFC with H2O as gasification agent. The potential of syngas and electricity co-generation from the fuel cell is also evaluated, where the composition of H2 and CO in syngas can be adjusted by controlling the anode inlet gas flow rate. In addition, the performance DC-SOFCs and the percentage of fuel in the outlet gas are both increased with increasing operating temperature. At a reduced temperature (below 800 °C), good performance of DC-SOFC can still be obtained with in-situ catalytic carbon gasification by steam. The results of this study form a solid foundation to understand the important effect of catalyst and related operating conditions on H2O-assisted DC-SOFCs.
Xu , H , Chen , B , Zhang , H , Tan , P , Yang , G , Irvine , J T S & Ni , M 2018 , ' Experimental and modeling study of high performance direct carbon solid oxide fuel cell with in situ catalytic steam-carbon gasification reaction ' , Journal of Power Sources , vol. 382 , pp. 135-143 . https://doi.org/10.1016/j.jpowsour.2018.02.033
Journal of Power Sources
© 2018 Elsevier Ltd. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1016/j.jpowsour.2018.02.033
DescriptionThis research is supported by a grant (PolyU 152127/14E) from Research Grant Council, University Grants Committee, Hong Kong SAR, a grant from Environment and Conservation Fund (ECF 54/2015), Hong Kong SAR, and a grant from Research Institute for Sustainable Urban Development (RISUD) (1-ZVEA). We gratefully acknowledge the financial support of the National Science Foundation of China (Grant No. 51406091).
Items in the St Andrews Research Repository are protected by copyright, with all rights reserved, unless otherwise indicated.