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Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received August 23, 2023
Accepted August 23, 2023

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Flow behavior of wakes in a three-phase slurry bubble column with viscous liquid medium

Dae Ho Lim Ji Hwa Jang Yong Kang^† Ki Won Jun¹

School of Bio and Applied Chemical Engineering, Chungnam National University, Daejeon 305-764, Korea ¹Green Chemical Technology Division, Korea Research Institute of Chemical Technology, Daejeon 305-600, Korea

Korean Journal of Chemical Engineering, March 2011, 28(3), 974-979(6), 10.1007/s11814-010-0403-4

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Abstract

Flow behavior of wakes has been investigated in a three-phase slurry bubble column of 0.102 m ID and 1.5 m in height. The dependence of wake characteristics such as rising velocity, frequency, holdup and equivalent size on the operating variables was examined by employing an electric resistivity probe method. The gas velocity, liquid viscosity and solid content in the slurry phase were chosen as independent parameters. The rising velocity of wake region increased with an increase in the gas velocity (4.0-12.0 cm/s), liquid viscosity (1.0-50.0 mPa·s) or solid content (0-25 wt%) in the slurry phase. The frequency and holdup of wake phase increased with increasing gas velocity, but decreased with increasing liquid viscosity or solid content in the slurry phase. The equivalent size of wake phase increased with increasing gas velocity, liquid viscosity or solid content in the slurry phase. The wake properties and holdup were well correlated with operation variables within these experimental conditions.

Keywords

Wake Behavior Three-phase Slurry Bubble Column Viscous Medium

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