| 丝光沸石催化剂上正己烷异构化反应机理 |
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| 引用本文： | 柴章民,李承烈,黄国雄,刘馥英.丝光沸石催化剂上正己烷异构化反应机理[J].华东理工大学学报(自然科学版),1990(6). |
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| 作者姓名： | 柴章民 李承烈 黄国雄 刘馥英 |
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| 作者单位： | 华东化工学院石油加工研究所
(柴章民,李承烈,黄国雄),华东化工学院石油加工研究所(刘馥英) |
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| 摘 要： | 以轻质烷烃异构化中试放大用的丝光沸石催化剂为研究对象,运用“原位”红外反应技术和催化剂活性评价手段,并结合反应动力学参数计算,探讨了正已烷异构化反应机理。结果表明,可用五配位反应中间物种机理解释正碳离子的生成。用双分子六元环反应中间物机理能较好地解释正已烷在氢型丝光沸石(HM)上的异构化过程。对正已烷在Pd/HM上的反应过程也可用正碳离子机理结合双分子六元环中间物机理解释。
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| 关 键 词： | 异构化 沸石 已烷 动力学 催化剂 机理 |
Study on the Mechanism of n-Hexane Isomerization on Mordenite |
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| Chai Zhangmin,Li Chenglie,Huang Guoxiong and Liu Fuying.Study on the Mechanism of n-Hexane Isomerization on Mordenite[J].Journal of East China University of Science and Technology,1990(6). |
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| Authors: | Chai Zhangmin Li Chenglie Huang Guoxiong and Liu Fuying |
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| Institution: | Petroleum Processing Research Center |
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| Abstract: | The mechanism of n-hexane isomerization on mordenite which is used in a pilot plant as isomerization catalyst for light paraffin, was studied by "in situ" FT-IR study for reaction, evaluation of catalyst activity and kinetic analysis. The results show that the formation of carbonium ions can be explained by the existence of non-classical penta-coordinated carbonium ion intermediate. There may be an interpretation of a bimolecular cyclohexane-type mechanism for n-hexane isomerization on H-mordenite. A classical carbonium ion mechanism combined with a bimolecular intermediate mechanism may explain the isomerization of n-hexane on Pd/H-mordenite. |
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| Keywords: | isomerization zeolite hexane kinetics catalyst mechanism |
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