Mass transfer from Taylor bubbles rising in single capillaries

被引：160
|
作者：
Vandu, CO
Liu, H
Krishna, R
机构：
[1] Univ Amsterdam, Hoff Inst Mol Sci, NL-1018 WV Amsterdam, Netherlands
[2] Beijing Univ Chem Technol, Key Lab Sci & Technol Controllable Chem React, MEC, Beijing 100029, Peoples R China
来源：
CHEMICAL ENGINEERING SCIENCE | 2005年 / 60卷 / 22期
关键词：
mass transfer; Taylor bubbles; vertical capillary; penetration model; monolith reactors;
D O I：
10.1016/j.ces.2005.01.037
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Gas-liquid mass transfer from Taylor bubbles rising in 1, 2 and 3 mm diameter capillaries of circular and square cross-sections was investigated for air-water system. The liquid-phase volumetric mass transfer coefficient k(L)a was obtained from experimental oxygen absorption dynamics. The experimental kLa values are in good agreement with the model developed by van Baten and Krishna (2004. Chemical Engineering Science 59, 2535-2545), with the additional assumption that the dominant mass transfer contribution is to the film surrounding the bubble. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码：6430 / 6437
页数：8
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