| 학회 |
한국화학공학회 |
| 학술대회 |
2008년 봄 (04/23 ~ 04/25, 제주ICC) |
| 권호 |
14권 1호, p.578 |
| 발표분야 |
에너지/환경 |
| 제목 |
Performance of Ce-promoted Ni/Al2O3 Catalysts for the Combined Steam and Carbon Dioxide Reforming of Methane |
| 초록 |
Supported Ni catalysts were promoted with cerium oxide for the combined steam and carbon dioxide reforming of methane (CSCRM). Cerium oxide has a dominant ability to supply the active oxygen species which suppresses coke formation by oxidizing surface carbon on the catalyst. Ce-promoted Ni/Al2O3 catalysts with various Ce content have been prepared by using co-impregnation method and characterized by XRD, BET and H2-TPR. The reaction was performed with the ratio of (H2O+CO2)/CH4 of 1.2 from 750 oC to 650 oC. Coke formation in used catalysts was examined by SEM. It has been found that catalytic activity and stability depends on the Ce content over Ni/Al2O3 catalyst and the optimum Ce content is 6wt%, resulting from the highest activity as well as high coke resistance. |
| 저자 |
구기영1, 노현석2, 서동주1, 정운호1, 서용석1, 윤왕래1, 박승빈3
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| 소속 |
1한국에너지기술(연), 2연세대, 3KAIST |
| 키워드 |
combined reforming; Ni catalyst; Ce; coke
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| E-Mail |
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| 원문파일 |
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