Static liquid hold-up and capillary rise in packed beds

被引：27
|
作者：
Kramer, GJ [1 ]
机构：
[1] Shell Int Oil Prod BV, Shell Res & Technol Ctr, NL-1030 BN Amsterdam, Netherlands
来源：
CHEMICAL ENGINEERING SCIENCE | 1998年 / 53卷 / 16期
关键词：
trickle flow; packed beds; liquid hold-up; capillary rise;
D O I：
10.1016/S0009-2509(98)80001-8
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
A theory is presented that predicts both static liquid hold-up and capillary rise in a randomly packed bed of spherical particles. It exploits the experimental observation that the liquid that is retained in a packed bed after drainage is primarily present in the form of pendular liquid bonds between touching spheres. By considering this drained state as a network of liquid pendular bonds at critical percolation, the predictions for static liquid hold-up and for capillary rise follow naturally. The predictions for both phenomena agree well with experimental data. (C) 1998 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：2985 / 2992
页数：8
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