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

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Reaction Characteristics of Thermochemical Methane Reforming on Ferrite-Based Metal Oxide Mediums

페라이트계 금속 산화물 매체 상에서 열화학 메탄 개질 반응 특성

  • Cha, Kwang-Seo (Department of Fine Chemical Engineering and Applied Chemistry, Chungnam National University) ;
  • Lee, Dong-Hee (Department of Fine Chemical Engineering and Applied Chemistry, Chungnam National University) ;
  • Jo, Won-Jun (R&D Division, Korea Gas Corporation) ;
  • Lee, Young-Seak (Department of Fine Chemical Engineering and Applied Chemistry, Chungnam National University) ;
  • Kim, Young-Ho (Department of Fine Chemical Engineering and Applied Chemistry, Chungnam National University)
  • 차광서 (충남대학교 정밀응용화학과) ;
  • 이동희 (충남대학교 정밀응용화학과) ;
  • 조원준 (한국가스공사 연구개발원) ;
  • 이영석 (충남대학교 정밀응용화학과) ;
  • 김영호 (충남대학교 정밀응용화학과)
  • Published : 2007.06.15
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Abstract

Thermochemical 2-step methane reforming, involving the reduction of metal oxide with methane to produce syngas and the oxidation of the reduced metal oxide with water to produce pure hydrogen, was investigated on ferrite-based metal oxide mediums. The mediums, CoFZ, CuFZ, or MnFZ, were composed of the mixture of M(M=Co, Cu or Mn)-substituted ferrite as an active component and $ZrO_2$ as a binder, respectively. The WZ medium, composed of the mixture of $WO_3$ and $ZrO_2$, was also prepared to compare. With an addition of $ZrO_2$, the surface area of the mediums was slightly increased and the sintering of active components was greatly suppressed during the reduction. The higher reactivity of the reduced mediums for water splitting was confirmed by the temperature programmed reaction. From the results of the thermochemical 2-step methane reforming, the reactivity of $CH_4$ reduction and water splitting with ferrite-based metal oxide mediums was relatively higher than that with WZ, and the order of reactivity of the mediums was MnFZ>CoFZ>CuFZ>WZ.

Keywords

References

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