| 학회 |
한국화학공학회 |
| 학술대회 |
2007년 봄 (04/19 ~ 04/20, 울산 롯데호텔) |
| 권호 |
13권 1호, p.1083 |
| 발표분야 |
촉매 및 반응공학 |
| 제목 |
Effect of Mg/Al Ratio in Ni/MgO-Al2O3 on Combined Reforming of Methane |
| 초록 |
The control of adequate H2/CO ratios in synthesis gas has been a key issue for application of oxo-synthesis and Fischer-Tropsch process by means of combined steam and carbon dioxide reforming of methane. In this study, H2/ CO ratio of 2 was achieved in combined reforming of methane over Ni/ MgO-Al2O3. Ni catalysts supported on hydrotalcite-like MgO-Al2O3 have been used as promising catalysts because hydrotalcite-like MgO-Al2O3 have some advantages such as thermal stability, large surface area and well dispersion of metal catalyst (Ni). In this study, catalysts were prepared by an incipient wetness method and the Mg/Al ratio was varied from 0.5 to 3.5 in MgO-Al2O3 mixed oxide. The effect of Mg/Al ratio over Ni/MgO-Al2O3 catalysts pre-calcined at various temperatures from 800oC to 1200oC was investigated with respect to their characteristics and catalytic activity. The reaction was performed with the ratio of (H2O+CO2)/CH4 of 1.2 from 750oC to 650oC to observe the effect of reforming temperature. It was concluded that Ni/MgO-Al2O3 catalyst with the Mg/Al ratio of 0.5 exhibited good catalytic activity and stability due to low coke formation and sintering. |
| 저자 |
구기영1, 노현석2, 서유택2, 서동주2, 서용석2, 윤왕래2, 정진혁3, 박승빈1
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| 소속 |
1한국과학기술원, 2한국에너지기술(연), 3경북대 |
| 키워드 |
syngas; Ni catalyst; combined reforming; hydrotalcite-like mixed oxide
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| E-Mail |
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| 원문파일 |
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