| Catalytic Dehydrogenation of n-Butane over V/SiO2 Catalyst： A Comparison with Cr/SiO2 Catalyst |
| |
| 作者单位： | Key Laboratory of Oil ＆ Gas Fine Chemicals, Ministry of Education, Xinjiang University, Urumqi 830046 |
| |
| 基金项目： | The Program for New Century Excellent Talents in University (Grant No.NCET-04-0987); Doctor Fund of Science Research of Xinjiang University (Grant No. BS060101) |
| |
| 摘 要： | V/SiO2 catalysts compared to Cr/SiO2 catalysts were studied for dehydrogenation of n-butane to butenes. Several methods for characterization of catalysts such as FT-IR, UV-vis and Raman spectroscopies were used. Some differences between two catalysts were showed, including the performances of catalysts, distribution of products and mechanism of reactions. The results showed that prepared catalysts with 12m% of active component loading all demonstrated best conversion of n-butane to butene at a reaction temperature of around 590 ℃. Two different reaction mechanisms were mentioned to well explain why iso-butene was produced on V/SiO2 catalysts but not on Cr/SiO2 catalysts.
|
| 关 键 词： | 石油炼制 超临界相 长链烷烃催化 脱氢 |
Catalytic Dehydrogenation of n-Butane over V/SiO_2 Catalyst: A Comparison with Cr/SiO_2 Catalyst |
| |
| Authors: | Xu Yuebing Fu Wenting Lu Jiangyin Wang Jide |
| |
| Affiliation: | Xu Yuebing Fu Wenting Lu Jiangyin Wang Jide(Key Laboratory of Oil & Gas Fine Chemicals,Ministry of Education,Xinjiang University,Urumqi 830046) |
| |
| Abstract: | V/SiO2 catalysts compared to Cr/SiO2 catalysts were studied for dehydrogenation of n-butane to butenes.Several methods for characterization of catalysts such as FT-IR,UV-vis and Raman spectroscopies were used.Some differences between two catalysts were showed,including the performances of catalysts,distribution of products and mechanism of reactions.The results showed that prepared catalysts with 12m% of active component loading all demonstrated best conversion of n-butane to butene at a reaction temperature of around 590℃.Two different reaction mechanisms were mentioned to well explain why iso-butene was produced on V/SiO2 catalysts but not on Cr/SiO2 catalysts. |
| |
| Keywords: | n-butane catalytic dehydrogenation butene V/SiO2 Cr/SiO2 reaction mechanism |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
