MEASUREMENT OF GAS HOLDUP IN A 3-PHASE CONCURRENT DOWNFLOW COLUMN

被引：27
作者：
MARCHESE, MM
URIBESALAS, A
FINCH, JA
机构：
[1] Dept. of Mining, Met. Engineering McGill University, Montreal, Que. H3A 2A7
来源：
CHEMICAL ENGINEERING SCIENCE | 1992年 / 47卷 / 13-14期
基金：
加拿大自然科学与工程研究理事会;
关键词：
CONCURRENT; DOWNFLOW; COLUMN; GAS HOLDUP; CONDUCTIVITY; PRESSURE;
D O I：
10.1016/0009-2509(92)85060-O
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Experimental results obtained in the determination of gas holdup in a two and three-phase downflow concurrent column are presented. The holdup was measured using both electrical conductivity and pressure-based techniques, and was compared with that obtained from direct measurements (using the "isolating method"). Gas holdups in the range from approximately 20 to approximately 60% v/v were well predicted by both methods. In the case of conductivity, gas holdup was calculated using Maxwell's model (1892) and the conductivity measurements performed in the multi-phase (liquid-gas or liquid-solids-gas) system and the "continuous" phase (liquid or liquid-solids). In the case of pressure, the gas holdup was obtained from a pressure balance taking into account the dynamic component resulting from the de-acceleration of a liquid jet.
引用
收藏
页码：3475 / 3482
页数：8
相关论文
共 21 条
[1]  
Achwal S. K., 1976, Chemical Engineering Journal, V12, P69, DOI 10.1016/0300-9467(76)80019-6
[2]   ALTERNATIVE METHOD OF DETERMINING HOLD-UP IN GAS-LIQUID SYSTEMS [J].
ACHWAL, SK ;
STEPANEK, JB .
CHEMICAL ENGINEERING SCIENCE, 1975, 30 (11) :1443-1444
[3]   ELECTROCONDUCTIVITY TECHNIQUE FOR MEASUREMENT OF AXIAL VARIATION OF HOLDUPS IN 3-PHASE FLUIDIZED-BEDS [J].
BEGOVICH, JM ;
WATSON, JS .
AICHE JOURNAL, 1978, 24 (02) :351-354
[4]  
Dhanuka V. R., 1987, FLUIDIZATION, P179
[5]  
Fan L.S, 1989, GAS LIQUID SOLID FLU
[6]  
Finch J. A., 1990, COLUMN FLOTATION
[7]  
Flint L.R., 1974, T I MIN METALL, V83, pC90
[8]  
JAMESON GJ, 1991, COLUMN 91 INT C COLU, V2, P673
[9]  
JAMESON GJ, 1988, MINERALS METALLU FEB, P44
[10]  
JEPSEN JC, 1969, P I MECH ENG, V184, P154
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