Determination of the interfacial area and mass transfer coefficients in the Taylor gas–liquid flow in a microchannel

Paweł Sobieszuk , Ryszard Pohorecki , Paweł Cygański , Jacek Grzelka

Abstract

The interfacial area in the Taylor (slug) gas–liquid flow in a microchannel was measured by the Danckwerts' (chemical) method, using CO2 absorption from the CO2/N2 mixture into KHCO3/K2CO3 buffer solutions, containing NaOCl as a catalyst. The rate of absorption was determined and the Danckwerts' plots were constructed. Reasonable agreement with the geometrical area measured photographically was obtained. This fact allowed to determine for the first time the mass transfer coefficients separately for liquid film and liquid caps. A correlation for the calculation of mass transfer coefficients has been proposed.
Author Paweł Sobieszuk ZBIB
Paweł Sobieszuk,,
- Department of Biotechnology and Bioprocess Engineering
, Ryszard Pohorecki WIChiP
Ryszard Pohorecki,,
- Faculty of Chemical and Process Engineering
, Paweł Cygański ZBIB
Paweł Cygański,,
- Department of Biotechnology and Bioprocess Engineering
, Jacek Grzelka WIChiP
Jacek Grzelka,,
- Faculty of Chemical and Process Engineering
Journal seriesChemical Engineering Science, ISSN 0009-2509
Issue year2011
Vol66
No23
Pages6048-6056
Publication size in sheets0.5
Keywords in Englishabsorption, interfacial area, mass transfer, microstructure, multiphase flow, Taylor flow
DOIDOI:10.1016/j.ces.2011.08.029
URL http://www.sciencedirect.com/science/article/pii/S0009250911005987
Languageen angielski
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Score (nominal)35
Publication indicators WoS Impact Factor: 2011 = 2.431 (2) - 2011=2.601 (5)
Citation count*24 (2015-08-24)
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