Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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Methane Steam Reforming over $Ni/CeO_2-ZrO_2$ loaded on Fe-Cr Alloy Honeycomb Monolith

  • Lee, Jong-Dae (Department of Chemical Engineering, Chungbuk National University) ;
  • Kang, Min-Gyu (Department of Chemical Engineering, Chungbuk National University) ;
  • Lee, Tae-Jun (Department of Chemical Engineering, Chungbuk National University) ;
  • Cho, Kyung-Tae (Department of Chemical Engineering, Chungbuk National University) ;
  • Kim, Man-Hoe (Department of Chemistry, Airforce Academy(R.O.K.))
  • Published : 2007.12.31
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Abstract

에너지원으로서 수소를 생산하기 위하여 하니컴 구조를 갖는 모노리스에 10 wt% $Ni/CeO_2-ZrO_2$ 촉매를 담지한 후 메탄의 수증기 개질 실험을 수행하였다. 다른 $CeO_2/ZrO_2$ 몰비를 갖는 촉매들 중에서, $Ni/CeO_2-ZrO_2(CeO_2/ZrO_2=4/1)$촉매가 $700-800^{\circ}C$에서 높은 메탄의 전환율을 보여 주었다. 10wt% $Ni/CeO_2-ZrO_2$ 촉매가 담지된 금속 모노리스 촉매체는 높은 열전도도와 비표면적들로 인하여 좋은 촉매 특성을 보여줌을 확인할 수 있었다. 또한, 금속모노리스 촉매체는 반응물에서 과다의 수증기에 의한 수소 수율에서 크게 영향을 받지 않음을 알 수 있었다. $GHSV=30,000h^{-1}$, 반응물 비$(H_2O/CH_4=3.0)$ 반응온도 $800^{\circ}C$에서 금속모노리스 촉매체는 98%이상의 메탄의 전환율을 보여주었다. 생성물 가스에서 $CO_2/CO$의 비는 수증기/메탄의 반응물비가 증가할수록 수성가스화 반응에 의하여 증가됨을 알 수 있었다.

Keywords

References

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