Experiment and prediction of breakthrough curves for packed bed adsorption of water vapor on cornmeal

被引:33
|
作者
Chang, Hua [1 ]
Yuan, Xi-Gang [1 ]
Tian, Hua [1 ]
Zeng, Ai-Wu [1 ]
机构
[1] Tianjin Univ, Sch Chem Engn & Technol, Chem Engn Res Ctr, State Key Lab Chem Engn, Tianjin 300072, Peoples R China
关键词
adsorption isotherm; effective diffusivity; ethanol dehydration; breakthrough curve; adsorption model;
D O I
10.1016/j.cep.2006.03.001
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
The adsorption isotherms of water vapor on cornmeal and the breakthrough curves at 82-100 degrees C were measured in a fixed-bed apparatus for ethanol dehydration. Using the water isotherms measured and fitting the experimental data to fixed-bed model for breakthrough curve, the effective diffusivity of water was obtained. The effective diffusivity was estimated and used to predict breakthrough curves at other adsorption conditions. The controlling factor for mass-transfer resistance was discussed. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:747 / 754
页数:8
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