Review on flow and mass transfer characteristics of gas-liquid slug flow in microchannels

被引：0

作者：

Yao, Chaoqun ^{[1
]}

Yue, Jun ^{[2
]}

Zhao, Yuchao ^{[1
]}

Chen, Guangwen ^{[1
]}

Yuan, Quan ^{[1
]}

机构：

[1] Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, Liaoning

[2] Department of Chemical Engineering, University of Groningen, Groningen, 9747, AG

来源：

Huagong Xuebao/CIESC Journal | 2015年 / 66卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Bubble; Mass transfer; Microchannel; Microreactor; Multiphase flow;

D O I：

10.11949/j.issn.0438-1157.20150820

中图分类号：

学科分类号：

摘要：

Gas-liquid slug flow (also termed as Taylor flow) is a flow pattern characterized by the alternate movement of elongated bubbles and liquid slugs. Gas-liquid slug flow operation in microchannels has been found important implications in the enhancement of gas-liquid reactions due to its advantages such as easy control, uniform bubble and slug size, narrowed residence time distribution as well as enhanced radial mixing. This review presents the basic conceptions and recent research progress on flow and mass transfer characteristics during the gas-liquid slug flow in microchannels. The gas bubble formation mechanisms, the corresponding bubble and liquid lengths, and mass transfer during bubble formation are summarized. For regular slug flow in the main section of microchannels, several important aspects are addressed including bubble cross-sectional shape and liquid film profile, internal liquid recirculation and leakage flow through the gutters, gas-liquid mass transfer coefficients and coupling phenomena between flow and mass transfer in physical and chemical absorption processes. Finally, an outlook is given for future research directions in this field. ©, 2015, Chemical Industry Press. All right reserved.

引用

页码：2759 / 2766

页数：7

共 44 条

[1]

Inoue T., Schmidt M.A., Jensen K.F., Microfabricated multiphase reactors for the direct synthesis of hydrogen peroxide from hydrogen and oxygen, Ind. Eng. Chem. Res., 46, 4, pp. 1153-1160, (2007)

[2]

Zhao Y.C., Yao C.Q., Chen G.W., Yuan Q., Highly efficient synthesis of cyclic carbonate with CO<sub>2</sub> catalyzed by ionic liquid in a microreactor, Green Chem., 15, 2, pp. 446-452, (2013)

[3]

Yue J., Chen G.W., Yuan Q., Luo L.A., Gonthier Y., Hydrodynamics and mass transfer characteristics in gas-liquid flow through a rectangular microchannel, Chem. Eng. Sci., 62, 7, pp. 2096-2108, (2007)

[4]

de Mas N., Gunther A., Schmidt M.A., Jensen K.F., Microfabricated multiphase reactors for the selective direct fluorination of aromatics, Ind. Eng. Chem. Res., 42, 4, pp. 698-710, (2003)

[5]

Hessel V., Kralisch D., Kockmann N., Noel T., Wang Q., Novel process windows for enabling, accelerating, and uplifting flow chemistry, ChemSusChem., 6, 5, pp. 746-789, (2013)

[6]

Garstecki P., Fuerstman M.J., Stone H.A., Whitesides G.M., Formation of droplets and bubbles in a microfluidic T-junction-scaling and mechanism of break-up, Lab Chip, 6, 3, pp. 437-446, (2006)

[7]

Yao C.Q., Zhao Y.C., Ye C.B., Dang M.H., Dong Z.Y., Chen G.W., Characteristics of slug flow with inertial effects in a rectangular microchannel, Chem. Eng. Sci., 95, pp. 246-256, (2013)

[8]

Yao C.Q., Dong Z.Y., Zhao Y.C., Chen G.W., The effect of system pressure on gas-liquid slug flow in a microchannel, AIChE Journal, 60, pp. 1132-1142, (2014)

[9]

Xu K., Tostado C.P., Xu J.H., Lu Y.C., Luo G.S., Direct measurement of the differential pressure during drop formation in a co-flow microfluidic device, Lab Chip, 14, 7, pp. 1357-1366, (2014)

[10]

Dietrich N., Poncin S., Midoux N., Li H.Z., Bubble formation dynamics in various flow-focusing microdevices, Langmuir, 24, pp. 13904-13911, (2008)

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