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Interstage backmixing of an aerated multistage, mechanically‐agitated, compartmented column
Author(s) -
Takriff Mohd Sobri,
Penney W. Roy,
Fasano Julian B.
Publication year - 1998
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.5450760304
Subject(s) - impeller , superficial velocity , chemistry , dimensionless quantity , mechanics , aeration , flow (mathematics) , chromatography , materials science , physics , organic chemistry
The interstage backmixing in a multistage, mechanically‐agitated, compartmented (MSAC) column was determined experimentally, using air‐water. The effects of impeller speed, impeller diameter and both superficial liquid velocity and superficial gas velocity through the interstage opening were investigated. Both the counter‐current and co‐current flow of air and water in the column were investigated. As air superficial velocity through the opening increased from zero, the interstage backmixing significantly decreased initially, reached a minimum, then increased slowly to a maximum after which it decreased continually with further increase in superficial gas velocity. The effect of the gas flow on interstage backmixing was correlated in dimensionless form.