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Experimental study and parameterization of interfacial gas absorption
Author(s) -
Caussade B.,
George J.,
Masbernat L.
Publication year - 1990
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690360212
Subject(s) - absorption (acoustics) , helium , carbon dioxide , mass transfer , chemistry , mass transfer coefficient , analytical chemistry (journal) , thermodynamics , exponent , gas phase , materials science , mechanics , chromatography , composite material , linguistics , physics , philosophy , organic chemistry
Experiments of simultaneous absorption of carbon dioxide and helium, in transient absorption regimes, have been carried out in a gas‐liquid flume for stratified‐type cocurrent flows. There was a need to improve a method of chromatographic analysis for helium and CO 2 titrations in the gaseous phase and the liquid phase; this led us to study simultaneous absorption of CO 2 and He independent of dynamic conditions. In addition the dominant wave characteristics were studied and the interfacial friction velocity was measured. It was confirmed that, for two gases presenting a large contrast in diffusivities, gas absorption rates are related directly to the physical properties of the gases. The mass transfer coefficient varies with the − 1/2 exponent of the Schmidt number for a large interfacial stress and a clean interface whereas it varies with the − 2/3 exponent for weaker winds.