Studies on liquid-gas and three-phase fluidized beds with pulsating air flows

被引：0
|
作者：
Baker, Christopher G.J. [1 ]
Al-Rashidi, Thari S.T. [1 ,2 ]
Khan, Abdul R. [1 ,3 ]
机构：
[1] Department of Chemical Engineering, Kuwait University, P.O. Box 5969, Safat, 13060, Kuwait
[2] Kuwait National Petroleum Co., Mina Al-Ahmadi Refinery, P.O. Box 10252, Shuaiba, 65453, Kuwait
[3] Dept. of Chem./Petroleum Engineering, United Arab Emirates University, P.O. Box 17555, Al-Ain, United Arab Emirates
来源：
| 2003年 / Canadian Society for Chemical Engineering卷 / 81期
关键词：
Bubble formation - Bubbles (in fluids) - Multiphase flow - Pulsatile flow;
D O I：
10.1002/cjce.5450810102
中图分类号：
学科分类号：
摘要：
The effects of air-flow pulsation and water and air flowrates on the hydrodynamics of liquid-gas and three-phase fluidized beds containing 3-mm glass beads have been studied in a 90-mm i.d. column. Under steady-flow conditions, both types of bed contained a relatively large number of small bubbles. With a pulsing air flow, however, a smaller number of much larger bubbles or slugs were formed. This was attributed to different mechanisms of bubble formation at the distributor. Variations in phase holdup were explained in terms of the effects of the operating parameters on the bubble characteristics.
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