Experimental investigation on gas-liquid mass transfer with fast chemical reaction in microchannel

被引：46

作者：

Zhu, Chunying ^{[1
]}

Lu, Yutao ^{[1
]}

Fu, Taotao ^{[1
]}

Ma, Youguang ^{[1
]}

Li, Huai Z. ^{[2
]}

机构：

[1] Tianjin Univ, Sch Chem Engn & Technol, Collaborat Innovat Ctr Chem Sci & Engn, State Key Lab Chem Engn, Tianjin 300072, Peoples R China

[2] Univ Lorraine, CNRS, Lab React & Proc Engn, 1 Rue Grandville,BP 20451, F-54001 Nancy, France

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2017年 / 114卷

基金：

中国国家自然科学基金;

关键词：

Microchannel; Mass transfer; Gas-liquid two-phase flow; Chemical absorption; TAYLOR FLOW; CO2; ABSORPTION; RECTANGULAR MICROCHANNEL; CIRCULAR MICROCHANNELS; SQUARE MICROCHANNELS; CARBON-DIOXIDE; SEGMENTED FLOW; BUBBLY FLOW; CAPILLARIES; DISSOLUTION;

D O I：

10.1016/j.ijheatmasstransfer.2017.06.054

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The gas-liquid two-phase flow and mass transfer with fast chemical reaction in a microchannel were investigated experimentally. Result showed that the bubble volume decreased exponentially with its movement along the channel in a quickly reactable absorbent. The volumetric mass transfer coefficient k(L)a increased with gas flow rate, while it was insensitive to liquid flow rate under experimental conditions, although the mass transfer coefficient k(L) increased with liquid flow rate. In slug-bubbly flow regime, the k(L) decreased when increasing gas flow rate, but inverse tendency was found for slug flow pattern. Both k(L) and k(L)a increased with the increase of absorbent concentration. A new correlation for predicting the volumetric mass transfer coefficients k(L)a was proposed by taking the enhancement factor E of chemical reaction into account. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：83 / 89

页数：7

共 33 条

[1] Automated microfluidic platform for studies of carbon dioxide dissolution and solubility in physical solvents [J].

Abolhasani, Milad ;

Singh, Mayank ;

Kumacheva, Eugenia ;

Guenther, Axel .

LAB ON A CHIP, 2012, 12 (09) :1611-1618

[2]

[Anonymous], 1962, INT J HEAT MASS TRAN, DOI DOI 10.1016/0017-9310(62)90032-7

[3] The role of gas bubbles and liquid slug lengths on mass transport in the Taylor flow through capillaries [J].

Bercic, G ;

Pintar, A .

CHEMICAL ENGINEERING SCIENCE, 1997, 52 (21-22) :3709-3719

[4] CO2 Absorption in Polytetrafluoroethylene Membrane Microstructured Contactor Using Aqueous Solutions of Amines [J].

Constantinou, A. ;

Barrass, S. ;

Gavriilidis, A. .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2014, 53 (22) :9236-9242

[5] Transport of bubbles in square microchannels [J].

Cubaud, T ;

Ho, CM .

PHYSICS OF FLUIDS, 2004, 16 (12) :4575-4585

[6] CO2 dissolution in water using long serpentine microchannels [J].

Cubaud, Thomas ;

Sauzade, Martin ;

Sun, Ruopeng .

BIOMICROFLUIDICS, 2012, 6 (02)

[7]

Dancicwerts P.V., 1997, T ICHEME, V75, pS101

[8] Fluid flow and mass transfer characteristics of enhanced CO2 capture in a minichannel reactor [J].

Ganapathy, H. ;

Shooshtari, A. ;

Dessiatoun, S. ;

Alshehhi, M. ;

Ohadi, M. .

APPLIED ENERGY, 2014, 119 :43-56

[9] Mass transfer measurement in a square milli-channel and comparison with results from a circular channel [J].

Haghnegandar, Mohammadreza ;

Boden, Stephan ;

Hampel, Uwe .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2016, 101 :251-260

[10] Investigation of the Taylor bubble under the effect of dissolution in microchannel [J].

Jia, H. W. ;

Zhang, P. .

CHEMICAL ENGINEERING JOURNAL, 2016, 285 :252-263

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