PRESSURE-DROP, LIQUID HOLDUP, AND FLOW REGIME TRANSITION IN TRICKLE FLOW

被引:137
作者
HOLUB, RA [1 ]
DUDUKOVIC, MP [1 ]
RAMACHANDRAN, PA [1 ]
机构
[1] WASHINGTON UNIV,CHEM REACT ENGN LAB,ST LOUIS,MO 63130
关键词
D O I
10.1002/aic.690390211
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
A phenomenological, pore-scale, hydrodynamic model is developed for representation of the. uniform, cocurrent, two-phase flow in the low interaction regime in trickle bed reactors. Comparison of model predictions with numerous pressure drop and liquid holdup data reveals that phase interaction terms are negligible which results in a simplified model with no adjustable parameters. This model yields improved pressure drop and liquid holdup estimates for the low interaction regime. In addition, a criterion for the prediction of the trickle to pulsing flow regime transition is developed based on Kapitza's (1945) work on laminar film stability. This criterion compares favorably to data and to some other existing models for prediction of the trickle to pulsing flow regime transition.
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页码:302 / 321
页数:20
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