Experimental studies of liquid flow maldistribution in a random packed column

被引：33
|
作者：
Yin, FH [1 ]
Wang, ZC [1 ]
Afacan, A [1 ]
Nandakumar, K [1 ]
Chuang, KT [1 ]
机构：
[1] Univ Alberta, Dept Chem & Mat Engn, Edmonton, AB T6G 2G6, Canada
来源：
CANADIAN JOURNAL OF CHEMICAL ENGINEERING | 2000年 / 78卷 / 03期
关键词：
random packings; packed column; liquid flow distribution; liquid wall flow;
D O I：
10.1002/cjce.5450780303
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Liquid flow distribution has been a major concern when scaling up random packed columns. This study concerns the measurements of liquid flow distribution in a large scale column packed with 25.4 mm stainless steel Pall rings. The liquid flow distribution was studied with packed bed height from 0.9 to 3.5 m, liquid flow rate from 2.91 to 6.66 kg/m(2).s, and gas flow rate from 0 to 3.0 kg/m(2).s. In addition, three systems, water/air, aqueous detergent solution/air and Isopar/air, were used to study the effect of liquid physical properties on liquid flow distribution, and two different liquid distributors were employed to test the effect of liquid distributor design. It was found that liquid flow distribution was strongly influenced by liquid distributor design, packed bed height, gas flow rate and liquid viscosity, slightly influenced by liquid flow rate, but not by liquid surface tension.
引用
收藏
页码：449 / 457
页数：9
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