Experimental investigation and its analysis of gas holdup in a three-phase counter-current microstructured bubble column

Author(s):  
Ritesh Prakash ◽  
Adhwarshu Bhattacharyya ◽  
Subrata Kumar Majumder
1986 ◽  
Vol 25 (2) ◽  
pp. 472-476 ◽  
Author(s):  
Eizo Sada ◽  
Hidehiro Kumazawa ◽  
Choulho Lee ◽  
Takahisa Iguchi

AIChE Journal ◽  
1990 ◽  
Vol 36 (11) ◽  
pp. 1731-1735 ◽  
Author(s):  
Dragomir B. Bukur ◽  
Shehal A. Patel ◽  
James G. Daly

Author(s):  
Mekala Sivaiah ◽  
Subrata Kumar Majumder

Abstract This article presents the analysis of gas holdup, pressure drop and bubble size of gas-liquid-solid flow in a modified downflow slurry bubble column. The analysis is done based on the Lockhart-Martinelli principle. The Lockhart-Martinelli model is modified and incorporate to predict the frictional pressure drop and gas holdup of three-phase flow in the modified bubble column. The effects of operating variables such as slurry flow rate, gas flow rate, slurry concentration and particle diameter on frictional pressure drop and gas holdup are investigated. To predict the gas holdup, Sauter mean bubble diameter and pressure drop, correlations have also been developed as function of different dimensionless groups by introducing the operating variables and physical properties. The studies of the pressure drop in the downflow slurry bubble column may give insight into a further understanding and modeling of the three-phase flow characteristics in industrial applications.


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