高等学校化学学报

高等学校化学学报 ›› 1991, Vol. 12 ›› Issue (5): 692.

• 论文 • 上一篇    下一篇

脱铝丝光沸石的吸附性能研究

朱桂花, 钟爱莲, 胡家芬, 李全芝   

  1. 复旦大学化学系, 200433
  • 收稿日期:1989-12-29 出版日期:1991-05-24 发布日期:1991-05-24
  • 通讯作者: 胡家芬
  • 基金资助:

    国家自然科学基金

Studies on Adsorption Properties of Dealuminated Mordenites

Zhu Gui-hua, Zhong Ai-lian, Hu Jia-fen, Li Quan-zhi   

  1. Department of Chemistry, Fudan University, Shanghai, 200433
  • Received:1989-12-29 Online:1991-05-24 Published:1991-05-24

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被引次数

3

摘要： 丝光沸石是优良的吸附剂和工业生产对二甲苯的实用催化剂。脱铝是使丝光沸石改性的有效方法。Chen报道了脱铝丝光沸石对环己烷的吸附量在硅铝比为15～50范围内随硅铝比增加而减少,而在50～90范围内变化很小。张红浪等用高温水蒸气处理结合酸洗的方法脱铝,得到不同硅铝比的丝光沸石,并研究了脱铝对其结构、酸性和催化性能的影响。本

关键词: 脱铝丝光沸石, 吸附, 苯, 环己烷, 二甲苯异构体

Abstract: The adsorption isotherms of benzene, cyclohexane, p-xylene, m-xylene and o-xylene on HM at 50℃ were determined by vacuum gravimetric method. The order of limiting adsorption on HM (silica-alumina ratio was 15. 8) is benzene>p-xylene>cyclohexane>m-xylene>o-xylene. The adsorption isotherms of benzene and cyclohexane on dealuminated mordenites(silica-alumina ratios were 15. 8, 22. 3, 59. 7, 185. 6) at 50 show that the limiting adsorption of benzene and cyclohexane all decreased with the increase of silica-alumina ratios.

Key words: Dealuminated mordenite, Adsorption, Benzene, Cyclohexane, Xylene isomer

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