화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2003년 가을 (10/24 ~ 10/25, 한양대학교)
권호 9권 2호, p.2896
발표분야 촉매/반응공학
제목 Methanol steam reforming and Water gas shift reaction over CuO-CeO2 catalysts
초록 In this study the activity of steam reforming of methanol(SRM) and water gas shift reaction(WGSR) over CuO-CeO2 catalysts were studied. The catalysts with different Cu loadings were prepared by the coprecipitation method. The catalysts were characterized by x-ray diffraction(XRD) and N2O chemisorption.
The activity increased with Cu loading for both reactions, indicating Cu in the active species for the reactions. In methanol steam reforming, the methanol conversion increased with increasing temperature and the activity of the catalyst with 70at.%Cu was comparable to the activity of a commercial catalyst.
Whereas in water gas shift reaction, the conversion profile with respect to temperature exhibited an inflection for a feed with a high CO content, an indication that different reaction mechanisms may contribute to the reaction and the prevailing mechanism may change upon reaction conditions. At low CO partial pressure, the activity of the catalyst was superior to the activity of a commercial catalyst.
저자 고정봉, 이진경, 김동현
소속 경북대
키워드 Copper catalyst; Ceria catalyst; Water gas shift reaction; Steam reforming of methanol
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