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| 论文编号: |
122214O120130179 |
| 第一作者所在部门: |
902组 |
| 中文论文题目: |
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| 英文论文题目: |
Low-temperature oxidation of dimethyl ether to methyl formate with high selectivity over MoO 3-SnO2 catalysts
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| 论文题目英文: |
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| 作者: |
谭猗生
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| 论文出处: |
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| 刊物名称: |
JOURNAL OF FUEL CHEMISTRY AND TECHNOLOGY
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| 年: |
2013
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| 卷: |
41 |
| 期: |
2 |
| 页: |
223-227 |
| 联系作者: |
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| 收录类别: |
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| 影响因子: |
0.949
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| 摘要: |
Abstract: Low-temperature oxidation of dimethyl ether (DME) to methyl formate (MF) with high selectivity was realized in a continuous flow fixed-bed reactor over the multifunctional MoO3-SnO2 catalysts designed and prepared intentionally. The effect of the preparation methods including mechanical mixing, co-precipitation and co-precipitation-impregnatio n on the catalyst activity was investigated. The results showed that the selectivity to MF reaches 94.1% at 160°C over the catalyst prepared by
co-precipitation-impregnation, with DME conversion of 33.9% and absence of CO
x in the products. The results of NH3-TPD, CO2-TPD and H2-TPR characterizations indicated that the catalysts prepared by various methods are also obviously different in the surface acidic, alkaline and redox properties. The results of Raman, XRD and TEM revealed that MoO3 structure and particle sizes have a significant influence on the catalyst activity; sma ll particle size and oligomeric MoO3 may be responsible for the high activity of the MoO3-SnO2 catalysts from co-precipitation-impregnation in the sel ective oxidation of DME to MF at low temperature. |
| 英文摘要: |
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| 备注: |
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