| 分子筛催化剂上二异丙苯异构化反应 |
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| 引用本文： | 赵培侠,张春勇,刘靖.分子筛催化剂上二异丙苯异构化反应[J].工业催化,2005,13(1):29-32. |
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| 作者姓名： | 赵培侠 张春勇 刘靖 |
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| 作者单位： | 大连理工大学精细化工国家重点实验室催化化学与工程系，辽宁 大连 1;16012 |
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| 摘 要： | 通过筛选5种不同的催化剂，最终确定β沸石分子筛对二异丙苯异构化反应有良好的催化性能。考察了反应温度和空速对异构化反应转化率及选择性的影响，结果表明，170 ℃、3.5 MPa、空速2 h－1下，β沸石上对二异丙苯的转化率45%，间二异丙苯的选择性69%。对催化剂的稳定性进行了考察，结果表明，在二异丙苯异构化反应中该催化剂表现出良好的稳定性。
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| 关 键 词： | 二异丙苯 异构化 β沸石 分子筛催化剂 |
| 文章编号： | 1008-1143(2005)01-0029-04 |
| 修稿时间： | 2004年8月20日 |
Isomerization of diisopropylbenzene over zeolite catalysts |
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| ZHAO Pei-xia,ZHANG Chun-yong,LIU Jing Chemistry and Engineering,Dalian University of Technology,Dalian ,Liaoning,China.Isomerization of diisopropylbenzene over zeolite catalysts[J].Industrial Catalysis,2005,13(1):29-32. |
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| Authors: | ZHAO Pei-xia ZHANG Chun-yong LIU Jing Chemistry and Engineering Dalian University of Technology Dalian Liaoning China |
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| Affiliation: | State Key Laboratory of Fine Chemicals, Department of Catalytic Chemistry and Engineering，Dalian University of Technology, Dalian 116012, Liaoning, China |
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| Abstract: | Isomerization of diisopropylbenzene was investigated over zeolite catalysts,i.e.HY,MCM-22,HZSM-5，MCM-41 and Hβ.The results showed that Hβ zeolite is a high-active catalyst for the reaction. The reaction conditions over Hβ were investigated. 1,4-DIPB conversion increased but the selectivity to 1,3-DIPB decreased with reaction temperature. 1,4-DIPB conversion of 45% and selectivity to 1,3-DIPB were attained at optimum condition of 170 ℃, 3.5 MPa, and 2 h－1. The catalyst also showed good stability. |
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| Keywords: | β zeolite catalyst diisopropylbenzene isomerization |
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