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| 论文编号: |
122214O120110095 |
| 第一作者所在部门: |
902组 |
| 中文论文题目: |
Methanation of syngas over coral reef-like Ni/Al2O3 catalysts
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| 英文论文题目: |
Methanation of syngas over coral reef-like Ni/Al2O3 catalysts
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| 论文题目英文: |
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| 作者: |
韩怡卓
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| 论文出处: |
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| 刊物名称: |
Journal of Natural Gas Chemistry
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| 年: |
2011
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| 卷: |
20 |
| 期: |
4 |
| 页: |
435 |
| 联系作者: |
韩怡卓 |
| 收录类别: |
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| 影响因子: |
1.345
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| 摘要: |
Coral reef-like Ni/Al2O3 catalysts were prepared by co-precipitation of nickel acetate and aluminium nitrate with sodium carbonate aqueous
solution in the medium of ethylene glycolye. Methanation of syngas was carried out over coral reef-like Ni/Al2O3 catalysts in a continuous
flow type fixed-bed reactor. The structure and properties of the fresh and used catalysts were studied by SEM, N2 adsorption-desorption, XRD,
H2-TPR, O2-TPO, TG and ICP-AES techniques. The results showed that the coral reef-like Ni/Al2O3 catalysts exhibited better activity than the
conventional Ni/Al2O3-H2O catalysts. The activities of coral reef-like catalysts were in the order of Ni/Al2O3-673>Ni/Al2O3-573>Ni/Al2O3-
473>Ni/Al2O3-773. Ni/Al2O3-673-EG catalyst showed not only good activity and improved stability but also superior resistance to carbon
deposition, sintering, and Ni loss. Under the reaction conditions of CO/H2 (molar ratio) = 1 : 3, 593 K, atmospheric pressure and a GHSV of
2500 h？1, CH4 selectivity was 84.7%, and the CO conversion reached 98.2%. |
| 英文摘要: |
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| 备注: |
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