| 丙烷氧化脱氢负载型催化剂的研究 |
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| 引用本文： | 李洪波,朱红娟,刘杰,朱百春,吴畏,杨维慎,林励吾.丙烷氧化脱氢负载型催化剂的研究[J].精细化工,2003,20(10):589-592. |
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| 作者姓名： | 李洪波 朱红娟 刘杰 朱百春 吴畏 杨维慎 林励吾 |
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| 作者单位： | 1. 中国科学院,大连化学物理研究所,催化基础国家重点实验室,辽宁,大连,116023
2. 大连开建集团,工程部,辽宁,大连,116600 |
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| 摘 要： | 制备了V2O5/TiO2和V2O5/TiO2 ZrO2负载型催化剂,并对催化剂进行了反应评价和BET、XRD、H2-TPR表征。通过研究验证了利用溶胶凝胶技术制备的负载TiO2催化剂有较好的低温反应活性,在250℃下反应得到2 2%的丙烯收率。对TiO2进行离子掺杂后催化剂活性组分能够和混合氧化物载体进行键合,形成稳定的O—V—Zr键和O—V—Ti键,使催化剂的还原温度从480℃增加到650℃,在350℃下反应得到12%的丙烷转化率和55%的丙烯选择性。
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| 关 键 词： | 丙烷 丙烯 氧化脱氢 V2O5 TiO2-ZrO2 |
| 文章编号： | 1003-5214(2003)10-0589-04 |
Oxidative Dehydrogenation of Propane on Supported Catalyst |
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| Abstract: | The supported catalysts V2O5/TiO2 and V2O5/TiO2 ZrO2 were prepared for oxidative dehydrogenation of propane,and the catalyst samples were characterized by means of BET,XRD and H2-TPR.The catalytic performance proved that the yield of propene was 22% at 250 ℃ on TiO2 supported catalyst made by sol gel method.Strong chemical bonds O-V-Zr and O-V-Ti between active phase and mixed oxide supports resulted in the increase of reduction temperature of catalysts from 480 ℃ to 650 ℃.Therefore,at 350 ℃ conversion of propane was 13% and selectivity for propene reached 55%. |
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| Keywords: | propane propene oxidative dehydrogenation V_2O_5 TiO_2-ZrO_2 |
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