New & Renewable Energy (신재생에너지)

Korean Society for New and Renewable Energy (한국신·재생에너지학회)
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Partial Oxidation of Methane Over Ceria-promoted Catalysts Derived from Ni-substituted Hydrotalcite

세리아가 첨가된 니켈 치환 하이드로탈사이트로부터 유도된 촉매에 의한 메탄의 부분산화

  • 이승환 (성균관대학교 화학공학과) ;
  • 김미소 (성균관대학교 화학공학과) ;
  • 곽정훈 (성균관대학교 화학공학과) ;
  • 임태훈 (한국과학기술연구원 연료전지연구단) ;
  • 남석우 (한국과학기술연구원 연료전지연구단) ;
  • 홍성안 (한국과학기술연구원 연료전지연구단) ;
  • 윤기준 (성균관대학교 화학공학과)
  • Published : 2008.06.25
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Abstract

Partial oxidation of methane was carried out by ceria-promoted Ni-substituted hydrotalcite-derived catalysts ($Ce_xNi_3$-HTlc ; x=$0.3{\sim}1.2$) in a fixed-bed reactor. The Ce/Ni ratio of 0.3/3 in the catalyst showed the best catalytic activity but the Ce/Ni ratio became higher above 0.3/3, the catalyst became less active in short-term tests. No ceria promoted catalyst was started to decrease $CH_4$ conversion after 20 h but the Ce/Ni ratio 0.3/3 catalyst was kept its stability in long-term tests.

Keywords