| 超临界相中的长链烷烃催化脱氢 |
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| 引用本文： | 魏伟,孙予罕,钟炳.超临界相中的长链烷烃催化脱氢[J].催化学报,1999,20(5):493-494. |
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| 作者姓名： | 魏伟 孙予罕 钟炳 |
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| 作者单位： | The State Key Laboratory of Coal Conversion,Shanxi Institute of Coal Chemistry The Chinese Academy of Sciences,Taiyuan 030001 |
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| 基金项目： | 国家自然科学基金;29873063; |
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| 摘 要： | The preparation of olefins from long chain alkanes by catalytic dehydrogenation is an important process in synthetic detergents and surface-active agents1]. Because of equilibrium limitation, the present process only reaches about 10 % of the conversion with 90 % of the selectivity. In addition, the lifetime of the catalysts ( e. g. Pt-Sn/Al2O3) is around 40 d owing to the severe coke formation even with n(H2 )/n(alkane)= 8. Although the catalysts have been well improved, both conversion and selectivity were hardly enhanced. New technique is therefore required to improve the process.
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| 关 键 词： | 催化脱氢 长链烷烃 超临界 |
| 收稿时间： | 1999-10-25 |
| 修稿时间： | 1999年5月24日 |
CATALYTIC DEHYDROGENATION OF LONG CHAIN ALKANES IN SUPERCRITICAL PHASE |
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| Wei Wei,Sun Yuban,Zhong Bing.CATALYTIC DEHYDROGENATION OF LONG CHAIN ALKANES IN SUPERCRITICAL PHASE[J].Chinese Journal of Catalysis,1999,20(5):493-494. |
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| Authors: | Wei Wei Sun Yuban Zhong Bing |
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| Abstract: | The preparation of olefins from long chain alkanes by catalytic dehydrogenation is an important process in synthetic detergents and surface-active agents1]. Because of equilibrium limitation, the present process only reaches about 10 % of the conversion with 90 % of the selectivity. In addition, the lifetime of the catalysts ( e. g. Pt-Sn/Al2O3) is around 40 d owing to the severe coke formation even with n(H2 )/n(alkane)= 8. Although the catalysts have been well improved, both conversion and selectivity were hardly enhanced. New technique is therefore required to improve the process. |
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| Keywords: | long chain alkane catalytic dehydrogenation supercritical phase |
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