Energy Storage Science and Technology ›› 2022, Vol. 11 ›› Issue (5): 1314-1321.doi: 10.19799/j.cnki.2095-4239.2021.0520

• Energy Storage Materials and Devices • Previous Articles     Next Articles

Experimental study on carbon deposition characteristics of planar solid oxide fuel cell

Hui TIAN1,2(), Dong HUA2,3, Maoli MAN1(), Chunzhe LIU1, Guojun LI2, Xiongwen ZHANG2   

  1. 1.Department of Mechanical Engineering, Hebei University of Technology Petroleum, Chengde 067000, Hebei, China
    2.School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, Shannxi, China
    3.Xi'an Modern Chemistry Research Institute, Xi'an 710065, Shannxi, China
  • Received:2021-10-10 Revised:2021-11-05 Online:2022-05-05 Published:2022-05-07
  • Contact: Maoli MAN E-mail:tianhuicfd@gmail.com;31321522@qq.com

Abstract:

The occurrence of carbon deposition on the anode of a solid oxide fuel cell (SOFC) is the bottleneck restricting its efficiency and stabilization. This paper reviews the research progress on the carbon deposition of SOFC in the experimental field both at home and abroad and points out the significance of determining a mathematical model of the carbon deposition rate. The SOFC carbon deposition experimental system is constructed composed of a gas pipeline, gas flow controller, open vacuum atmosphere, tubular electric heating furnace, and other instruments and equipment. The preparation of the sheet anode material for the experiment and the detailed steps of the carbon deposition experiment are introduced. We obtained the following based on the experimental results of the carbon deposition characteristics of the CO on Ni/YSZ anode: (1) the effect of CO/CO2 volume fraction on carbon deposition characteristics of CO disproportionation reaction; (2) effects of temperature on carbon deposition characteristics of CO disproportionation reaction; (3) effects of CH4 scission reaction and CO disproportionation on carbon deposition characteristics. Finally, based on the chemical reaction kinetics, the mathematical calculation model of the carbon deposition rate of CO disproportionation reaction at various temperatures is deduced and verified by the experimental results. This study is helpful to explore the mechanism of carbon deposition in an SOFC and provides a basis for the optimal control of SOFC operating parameters with natural gas as fuel.

Key words: Solid oxide fuel cell (SOFC), anode, carbon deposition, experimental research

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