4.7 Article Proceedings Paper

Hydrodynamics of gas-liquid Taylor flow and liquid-solid mass transfer in mini channels: Theory and experiment

Journal

CHEMICAL ENGINEERING JOURNAL
Volume 176, Issue -, Pages 57-64

Publisher

ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2011.03.107

Keywords

Mini channels; Taylor flow; Hydrodynamics; Gas bubble velocity; Void fraction; Dynamic gas hold-up; Liquid-solid mass transfer

Funding

  1. Saint-Petersburg Government [3.6/29-04/11, 3.6/04-06/023]

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Hydrodynamics of Taylor (slug) flow in horizontal capillary with an inner diameter of 0.92 mm in water-air and glycerol solution-air systems was studied. Experimental data of bubble velocity, dynamic gas hold-up and void fraction were compared with values that were calculated by proposed earlier mathematical model of slug flow in capillary. This model is in a good agreement with experimental data in the range of capillary numbers between 0.05 and 0.12. Also liquid-solid mass transfer coefficient for slug flow and homogeneous flow was experimentally obtained in horizontal capillary with an inner diameter of 2.26 mm and 2.76 mm in a caustic soda solution-air system. (C) 2011 Elsevier B.V. All rights reserved.

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