Simulation and analysis on gas flow distribution in radial flow air adsorber

被引：0
|
作者：
Tang Z. [1 ,2 ]
Xu M. [1 ,2 ]
Zhang J. [1 ,2 ]
机构：
[1] School of Chemical Engineering and Technology, Tianjin University, Tianjin
[2] State Key Laboratory of Chemical Engineering(Tianjin University), Tianjin
来源：
Tang, Zhongli (zltang@tju.edu.cn) | 1600年 / Tianjin University卷 / 49期
关键词：
Air separation; CFD simulation; Gas flow distribution; Radial flow; Structure optimization;
D O I：
10.11784/tdxbz201410080
中图分类号：
学科分类号：
摘要：
Gas flow distribution and its influence factors in a eighty thousand tons adsorber have been investigated by computational fluid dynamics (CFD). It is found that the axial uniformity of the flow distribution can be maximized when the cross-sectional area ratio of the center pipe to the annular channel reaches a certain value in adsorption process and desorption process. The uniformity in the two layers can both be improved by lowering the porosity of molecular sieve layer. In addition, a cone distributor can cause a little decrease of the uniformity in adsorption process, but can cause a relatively large increase in desorption process. An optimal solution is proposed as follows: Adjusting the porosity of the inner molecular sieve layer and the alumina layer to 0.33 and 0.35, respectively; Adding a cone distributor, the uniformity in the two layers can be improved with a slight increase of the pressure drop in both adsorption and desorption processes. © 2016, Editorial Board of Journal of Tianjin University(Science and Technology). All right reserved.
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页码：305 / 313
页数：8
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