| 异丙苯裂解反应动力学及HZSM—5沸石表面酸性的表征 |
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| 引用本文： | 刘秀英,王雪梅.异丙苯裂解反应动力学及HZSM—5沸石表面酸性的表征[J].北京化工大学学报(自然科学版),1996,23(4):71-75. |
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| 作者姓名： | 刘秀英 王雪梅 |
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| 作者单位： | 北京化工大学应用化学系 |
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| 摘 要： | 采用脉冲微反色谱法研究在ＨＺＳＭ－５沸石上异丙苯裂解反应动力学，求是反应速率常数、活化能、吸附平衡常数和吸附热，并以该反应探针，对没硅铝比的ＨＺＳＭ－５沸石的表面酸性进行了表生上异丙苯裂解结果表明：随Ｓｉ／Ａｌ比的减少，ＨＺＳＭ－５沸石表面酸性增加。
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| 关 键 词： | 反应动力学 沸石 异丙苯 裂解 表面酸性 |
Reaction Kinetics of Cumene Cracking and Characterization of the Surface Acidity of Zeolite HZSM-5 |
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| Liu Xiuying,Wang Xuemei,Li Zenghe,Ma Lijing,Bai Shoal,Zhang Renyou.Reaction Kinetics of Cumene Cracking and Characterization of the Surface Acidity of Zeolite HZSM-5[J].Journal of Beijing University of Chemical Technology,1996,23(4):71-75. |
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| Authors: | Liu Xiuying Wang Xuemei Li Zenghe Ma Lijing Bai Shoal Zhang Renyou |
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| Abstract: | The reaction kinetics of cumene cracking on zeolite HZSM-5 with different ratios of st to Al has been studied by using pulse microreactor chromatography technique. The reaction rate constants, the activation energy, the adsorption heat have been found out. The surface acidihes of zeolites HZSM-5 with different Si/ Al ratios have been Characterized by using the cumene cracking as a probe reaction. The results show that the acidity of zeolite HZSM-5 increases with the decrease of Si/Al. |
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| Keywords: | reaction kinetics zeolite cumene cracking pulse microreactor chromatography technique probe reaction surface acidity |
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