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

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Characteristics of Pt/C-based Catalysts for HI Decomposition in SI process

SI 공정에서 HI 분해를 위한 백금담지 활성탄 촉매의 특성

  • Kim, J.M. (Department of Fine Chemicals Engineering and Chemistry, Chungnam National Univ.) ;
  • Kim, Y.H. (Department of Fine Chemicals Engineering and Chemistry, Chungnam National Univ.) ;
  • Kang, K.S. (New Energy Research Department, Korea Institute of Energy Research) ;
  • Kim, C.H. (New Energy Research Department, Korea Institute of Energy Research) ;
  • Park, C.S. (New Energy Research Department, Korea Institute of Energy Research) ;
  • Bae, K.K. (New Energy Research Department, Korea Institute of Energy Research)
  • 김정민 (충남대학교 공업화학과) ;
  • 김영호 (충남대학교 공업화학과) ;
  • 강경수 (한국에너지기술연구원 수소제조연구센터) ;
  • 김창희 (한국에너지기술연구원 수소제조연구센터) ;
  • 박주식 (한국에너지기술연구원 수소제조연구센터) ;
  • 배기광 (한국에너지기술연구원 수소제조연구센터)
  • Published : 2008.06.30
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Abstract

HI decomposition was conducted using Pt/C-based catalysts with a fixed-bed reactor in the range of 573 K to 773 K. To examine the change of the characteristic properties of the catalysts, $N_2$ adsorption analyser, a X-ray diffractometer(XRD), and a scanning electron microscopy(SEM) were used before and after the HI decomposition reaction. the effect of Pt loading on HI decomposition was investigated by $CO_2$-TPD. HI conversion of all catalysts increased as decomposition temperature increased. The XRD analysis showed that the sizes of platinum particle became larger and agglomerated into a lump during the reaction. From $CO_2$-TPD, it can be concluded that the cause for the increase in catalytic activity may be attributed to the basic sites of catalyst surface. The results of both b desorption and gasification reaction showed the restriction on the use of Pt/C-based catalyst.

Keywords

References

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