| 학회 |
한국화학공학회 |
| 학술대회 |
2008년 가을 (10/23 ~ 10/24, 부산 BEXCO) |
| 권호 |
14권 2호, p.3531 |
| 발표분야 |
촉매 및 반응공학 |
| 제목 |
Effect of CeO2 and Ce-ZrO2 promoters on Ni/Mg(Al)O catalyst for mixedsteam andcarbon dioxidereforming of methane |
| 초록 |
The promotional effect of CeO2 and Ce-ZrO2 on Ni/Mg(Al)O catalyst was examined in mixed steam and carbon dioxide reforming of methane (SCR) to produce synthesis gas. The supported Ni catalysts were prepared by co-impregnation and stepwise impregnation method on hydrotalcite Mg(Al)O. Catalyst characterization was conducted by XRD, H2-TPR, TPO, H2-chemisorption, CO2-TPD, BET, and TEM. H2/(2CO+3CO2) ratio of 0.851.15 was achieved by changing the feed ratio of CH4/H2O/CO2. The promoted catalysts exhibited higher catalytic performance and coke resistance than that of Ni/Mg(Al)O catalyst. The high activity and stability of the CeO2 and Ce-ZrO2 modified Ni/Mg(Al)O catalyst was closely related to its high Ni metal dispersion, increase of basic strength and facile mobility of oxygen species on the surface of catalyst. |
| 저자 |
백승찬1, 전기원1, 배종욱1, 이관영2, 민계식3, 송석용3, 오태영3
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| 소속 |
1한국화학(연), 2고려대, 3현대중공업 |
| 키워드 |
CeO2 and Ce-ZrO2 modified Ni/Mg(Al)O catalyst; Steam and carbon dioxide reforming; Synthesis gas
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| E-Mail |
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| 원문파일 |
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