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| 论文编号: |
122214O120110127 |
| 第一作者所在部门: |
合成油 |
| 中文论文题目: |
A study of furfural decarbonylation on K-doped Pd/Al2O3 catalysts
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| 英文论文题目: |
A study of furfural decarbonylation on K-doped Pd/Al2O3 catalysts
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| 论文题目英文: |
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| 作者: |
朱玉雷
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| 论文出处: |
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| 刊物名称: |
Journal of Molecular Catalysis A-Chemical
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| 年: |
2011
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| 卷: |
335 |
| 期: |
1 |
| 页: |
71 |
| 联系作者: |
朱玉雷 |
| 收录类别: |
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| 影响因子: |
2.872
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| 摘要: |
Vapor-phase decarbonylation of furfural to furan was performed on K-doped Pd/Al2O3 catalysts in a fixedbed
reactor. A series of K-doped catalysts were prepared by impregnation method with various potassium
salt precursors and different potassium content. The catalyst evaluation results revealed that the doping of
K not only promoted the furfural decarbonylation, but also suppressed the hydrogenation side reaction.
Among the investigated catalysts, Pd–K2CO3/Al2O3 (K% = 8 wt.%) presented the best performance and
achieved the furan yields up to 99.5% at 260 ？C. The selectivity of 2-methylfuran would approach zero
at high K content (K% > 4 wt.%). Furthermore, the catalysts were characterized by BET, SEM, ICP, H2-TPR,
H2-TPD, H2-chemisorption, CO-FTIR, furfural-TPSR, and furfural-FTIR experiments. It was shown that the
dopant phase had a remarkable effect on the precursor Pd2+ and the reduced Pd metal particles. Furfural-
TPSR and furfural-FTIR exhibited that K-doped catalysts enhanced the furfural adsorption and promoted
the decarbonylation reaction, which was due to the different adsorption mode and intensity of furfural
on K-doped and undoped samples. Besides, the decrease of C–O adsorption of furfural (2(C,O)-furfural)
by K doping is the main reason for suppressing the furfural hydrogenation. |
| 英文摘要: |
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| 外单位作者单位: |
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| 备注: |
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