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| 论文编号: |
122214O120110152 |
| 第一作者所在部门: |
603、606组 |
| 中文论文题目: |
Selective oxidation of methanol to dimethoxymethane over acid-modified V2O5/TiO2 catalysts*
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| 英文论文题目: |
Selective oxidation of methanol to dimethoxymethane over acid-modified V2O5/TiO2 catalysts*
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| 论文题目英文: |
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| 作者: |
王建国
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| 论文出处: |
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| 刊物名称: |
Fuel
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| 年: |
2011
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| 卷: |
90 |
| 期: |
4 |
| 页: |
1335 |
| 联系作者: |
王建国 |
| 收录类别: |
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| 影响因子: |
3.604
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| 摘要: |
Selective oxidation of methanol to dimethoxymethane (DMM) was conducted in a fixed-bed reactor over an acid-modified V2O5/TiO2 catalyst. The influence of the acid modification on its structure, redox and acidic properties, and catalytic performance for methanol oxidation were investigated. The results indicated that the content of vanadia in the catalyst exhibits a vital influence on the dispersion of vanadium species, while the acid modification can enhance its surface acidity. Proper amounts of the acid (W(SO2_ 4 ) = 15%) and V2O5 (W(V2O5) = 15%) components loaded in the acid-modified V2O5/TiO2 catalyst are able to build a bi-functional circumstance that is favorable for the formation of DMM with high activity and selectivity. As a result, for the selective oxidation of methanol, the H2SO4-modified V2O5/TiO2 catalyst gives a much higher DMM yield at 150 _C than the unmodified one. |
| 英文摘要: |
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| 备注: |
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