Gas-liquid mass transfer in bubble column reactor: Analytical solution and experimental confirmation

被引：33

作者：

Dhaouadi, H. ^{[1
]}

Poncin, S. ^{[2
]}

Hornut, J. M. ^{[2
,3
]}

Midoux, N. ^{[2
]}

机构：

[1] Fac Sci, Dept Chim, Lab Chim Appl & Environm, Monastir 5000, Tunisia

[2] ENSIC Nancy, Lab Sci Genie Chim, Nancy, France

[3] IUT UHP Montet Nancy Brabois, Nancy, France

来源：

CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION | 2008年 / 47卷 / 04期

关键词：

bubble column; mass transfer; analytical solution;

D O I：

10.1016/j.cep.2006.11.009

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Gas-liquid mass transfer behavior in a bubble column is investigated. The used reactor is of 6 m height and has an internal diameter of 0.15 m. The classical 'gassing out' dynamic method is used to obtain the dissolved oxygen (DO) concentration profiles. An analytical description of the dissolved oxygen concentration evolution with time following the switch in the inlet gas is presented and allows the evaluation of the gas-liquid volumetric mass transfer coefficient for the different superficial gas velocities used. The comparison between the k(L)a values determined from this exact solution and those obtained in the same reactor from a more complete and sophisticated model, numerically solved, shows a good agreement. (C) 2006 Elsevier B.V. All rights reserved.

引用

页码：548 / 556

页数：9

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