Transactions of the Korean hydrogen and new energy society (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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The Effect of Methane in Hydrogen on the Performance of Proton Exchange Membrane Fuel Cell

수소연료 중의 메탄에 의한 고분자전해질 연료전지 성능변화 연구

  • Seo, Jung-Geun (Dept. of Chem. Eng., Ulsan Univ.) ;
  • Kwon, Jun-Taek (Dept. of Chem. Eng., Ulsan Univ.) ;
  • Kim, Jun-Bum (Dept. of Chem. Eng., Ulsan Univ.) ;
  • Chung, Jong-Tae (Div. of Hydrogen & Fuel Cell R&D, Research and Development Center of Korea Gas Corporation) ;
  • Kim, Woo-Sik (Div. of Hydrogen & Fuel Cell R&D, Research and Development Center of Korea Gas Corporation)
  • Published : 2007.12.15
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Abstract

The reforming process for hydrogen production generates some impurities. Impurities in hydrogen such as $CO_2$, CO, $H_2S$, $NH_3$ affect fuel cell performance. It is well known that CO generated by the reforming process may negatively affect performance of cell, cause damage on catalysts resulting performance degradation. Hydrogen produced by reforming process includes about 2% methane. The presence of methane up to 10% is reported negligible degradation in cell performance. However, methane more than 10% in hydrogen stream had not been researched. The concentration of impurity supplied to the fuel cell was verified by gas chromatography(GC). In this study, the influence of $CH_4$ on performance of PEM fuel cell was investigated by means of current vs. potential experiment, long run(10 hr) test and electrochemical impedance measurement when the concentrations of impurities were 10%, 20% and 30%.

Keywords

References

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