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Flow regimes and mass transfer in counter‐current bubble columns
Author(s) -
Uchida S.,
Tsuyutani S.,
Seno T.
Publication year - 1989
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450670521
Subject(s) - bubble , mechanics , mass transfer , turbulence , flow (mathematics) , current (fluid) , liquid flow , mass transfer coefficient , gas bubble , materials science , thermodynamics , physics
Counter current bubble columns have the feature that specific gas‐liquid interfacial area and gas holdup are larger than those for standard and cocurrent bubble columns. In this study, three different flow regimes, churn‐turbulent flow, bubble flow and bubble down‐flow, have been observed in a counter‐current bubble column and correlations of gas holdup and volumetric liquid‐phase mass transfer coefficient have been proposed as functions of operating variables such as the superficial velocities of gas and liquid, the gas‐liquid slip velocity and the liquid properties.