Bubble properties in three-phase inverse fluidized beds with viscous liquid medium

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Bubble properties such as size, rising velocity and frequency have been measured and investigated in a three-phase inverse fluidized bed with viscous liquid medium, whose diameter and height are 0.152 and 2.5 m, respectively. Effects of gas and liquid velocities, liquid viscosity and particle density (particle kind) on the bubble properties have been determined. It has been found that the size and frequency of bubbles have increased with increasing gas or liquid velocity, while the bubble rising velocity increases with increasing gas velocity but decreases with liquid velocity. The bubble size and rising velocity have increased but the frequency has decreased, with increasing liquid viscosity. The values of bubble properties have been well correlated in terms of operating variables. (c) 2006 Elsevier B.V. All rights reserved.
Publisher
Elsevier Science Sa
Issue Date
2007
Language
English
Article Type
Article
Keywords

MASS-TRANSFER; HYDRODYNAMIC CHARACTERISTICS; COLUMN; REACTORS; 2-PHASE

Citation

CHEMICAL ENGINEERING AND PROCESSING, v.46, no.8, pp.736 - 741

ISSN
0255-2701
DOI
10.1016/j.cep.2006.10.002
URI
http://hdl.handle.net/10203/3497
Appears in Collection
CBE-Journal Papers(저널논문)
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