Mass transfer and gas-liquid interface properties of single CO2 bubbles rising in tap water

被引：37

作者：

Nock, W. J. ^{[1
]}

Heaven, S. ^{[1
]}

Banks, C. J. ^{[1
]}

机构：

[1] Univ Southampton, Fac Engn & Environm, Southampton SO17 1BJ, Hants, England

来源：

CHEMICAL ENGINEERING SCIENCE | 2016年 / 140卷

基金：

英国工程与自然科学研究理事会;

关键词：

Mass transfer; Bubble; Mobile surface; Immobile surface; Carbon dioxide; TRANSFER COEFFICIENTS; COLUMN REACTORS; CONTAMINATION; RISE; VELOCITY;

D O I：

10.1016/j.ces.2015.10.001

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

To improve the mass transfer efficiency in many industrial applications better understanding of the mass transfer rate is required. High speed images of single CO2 bubbles rising in tap water were analysed to investigate the relationship between the mass transfer and properties of single bubbles. Transition to a lower mass transfer rate was shown to correspond with the transition from a mobile to an immobile bubble surface. This was indicated by the change in bubble rise velocity, bubble rise path and bubble shape. The presence of surfactants in untreated tap water appear to effect the transition point, particularly for bubbles with a smaller initial diameter and lower rise velocity. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：171 / 178

页数：8

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