| Bi2O3/HZSM-5催化丙烯二聚与芳构化 |
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| 引用本文： | 周锐,杨春,孟中岳.Bi2O3/HZSM-5催化丙烯二聚与芳构化[J].南京师大学报,1999,22(2):54-59. |
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| 作者姓名： | 周锐 杨春 孟中岳 |
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| 作者单位： | 南京师范大学化学系 |
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| 摘 要： | 采用连续微反装置研究了丙烯在Ｂｉ２Ｏ３／ＨＺＳＭ－５催化剂上的二聚与芳构化反应．在７７３Ｋ下，当Ｂｉ２Ｏ３负载量为３％时，获得了８３．８４％的ＢＴＸ选择性．氢气氛下反应可抑制催化剂失活，但同时也抑制了芳构化反应．ＴＰＤ结果表明Ｂｉ２Ｏ３的载入降低了总酸量，也降低了酸强，Ｂｉ２Ｏ３的作用很可能是提高了ＨＺＳＭ－５上氢的脱附能力
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| 关 键 词： | Bi2O3改性HZSM-5 丙烯二聚和芳构化 酸性 |
Bi2O3/HZSM-5 Catalyzed Propylene Dimerization and Aromatization |
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| Zhou Rui,Yang Chun,Meng Zhongyue.Bi2O3/HZSM-5 Catalyzed Propylene Dimerization and Aromatization[J].Journal of Nanjing Normal University(Natural Science Edition),1999,22(2):54-59. |
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| Authors: | Zhou Rui Yang Chun Meng Zhongyue |
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| Abstract: | The dimerzation and aromatization of propylene over Bi 2O 3/HZSM-5
catalyst was investigated in a flow-microreactor. The selectivity of 83.84% for BTX can be
reached on the sample containing 3% Bi 2O 3 at 773K. The deactivity of catalyst is inhibited in
H 2 atmosphere ,but the selectivity of BTX is also be suppressed under this condition.The
results of TPD showed that the introduction of Bi 2O 3 decreases total number of acidic sites
as well as acidic strength. The function of Bi 2O 3 loaded on HZSM-5 zeolite might be
improving the desorption of H 2. |
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| Keywords: | Bi 2O 3 modified HZSM-5 dimerization and aromatization of propylene acidity |
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