CIESC Journal

• 化工学报 • 上一篇    下一篇

二甲苯异构体在KY沸石上的低压吸附平衡

陈钟秀,苏云,卢建刚,丁同富   

  1. 浙江大学化学工程系!杭州310027,浙江大学化学工程系!杭州310027,浙江大学化学工程系!杭州310027,浙江大学化学工程系!杭州310027
  • 出版日期:1999-08-25 发布日期:1999-08-25

ADSORPTION EQUILIBRIA OF XYLENE/TOLUENE ISOMERS ON KY ZEOLITE UNDER LOW PRESSURE

Chen Zhongxiu, Su Yun, Lu Jiangang and Ding Tongfu(Department of Chemical Engineering, Zhejiang University, Hangzhou 310027)   

  • Online:1999-08-25 Published:1999-08-25

摘要: 用CAHN2000型电子天平在温度303.15~443.15 K、压力3.47~2116.6 Pa条件下测定对二甲苯、间二甲苯、邻二甲苯及甲苯在KY型沸石上的吸附平衡数据.根据Polanyi吸附势理论,以初始吸附热表征的亲和力系数作为调节参数,对测定的吸附平衡数据进行了关联,实验数据均落在一条特征曲线附近,得到了满意的结果.

Abstract: The adsorption equilibria of p-xylene, m-xylene, o-xylene and toluene on KY zeolite were measured under temperature range (303.15~443.15K) and low pressure (3.47~2116.6 Pa) by CAHN2000 Electrobalance. All the experimental data obtained in this work can be fitted as a generalized characteristic curve of Polanyi adsorption potential theory by using the parameter of the initial heat of adsorption, which is estimated reasonably.

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