| 학회 | 한국화학공학회 |
| 학술대회 | 2012년 봄 (04/25 ~ 04/27, 제주 ICC) |
| 권호 | 18권 1호, p.1219 |
| 발표분야 | 촉매 |
| 제목 | A Study on the Metal Oxide Supported Copper Catalysts for the Low-Temperature Water Gas Shift Reaction |
| 초록 | The Water Gas Shift reaction (WGS) is not only important for generating hydrogen, but also useful in enriching hydrogen in effluents stream from reforming units by decreasing the concentration of CO. Ternary CuO-ZnO-Al2O3 catalysts have been widely employed commercially since the early 1960s in the low temperature WGS reaction. But commercial catalysts have some significant drawbacks, such as the pyrophoric nature, susceptibility to poisoning and long pretreatment. In the present study, we are developing improved Cu-supported catalysts for the low-temperature WGS reaction. Supported 30 wt% Cu-metal oxide catalysts were prepared by co-precipitation using oxides of Zn, Zr, Ce, Cr. Catalysts were characterized using XRD, BET surface area, porosimeter, XPS, ICP, H2-TPR and N2O decomposition. The crystallite size of copper in the catalysts was also determined using the Scherrer equation. The surface composition has been measured by XPS analysis (~ 5-10 at%) and the bulk composition by ICP (~ 25-20 wt%). |
| 저자 | 김상윤, 이현찬, 서일규, 김동현, M. Jhansi Lakshmi Kishore |
| 소속 | 경북대 |
| 키워드 | |
| 원문파일 | 초록 보기 |
