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Impact of Surfactant Addition on Oxygen Mass Transfer in a Bubble Column
Author(s) -
McClure Dale D.,
Lee Ai Chia,
Kavanagh John M.,
Fletcher David F.,
Barton Geoffrey W.
Publication year - 2015
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201400403
Subject(s) - mass transfer coefficient , mass transfer , sparging , pulmonary surfactant , bubble , chemistry , chromatography , range (aeronautics) , analytical chemistry (journal) , materials science , mechanics , composite material , organic chemistry , biochemistry , physics
The impact of sparger design and surfactant addition on the oxygen transfer rate in a bubble column was examined. Additionally, measurements were also made of the holdup and bubble size distribution, allowing both the interfacial area for mass transfer and the liquid film mass transfer coefficient to be determined for a range of industrially relevant superficial velocities. It was found that for the velocity range examined changes in the superficial velocity had a minimal impact on the observed value of liquid film mass transfer coefficient. In contrast, addition of both hydrophilic and hydrophobic surface‐active compounds led to an approximately threefold reduction in liquid film mass transfer coefficient.