Impact of Surfactant Chemistry on Bubble Column Systems | Zendy

McClure Dale D. | Zendy; Deligny Julien | Zendy; Kavanagh John M. | Zendy; Fletcher David F. | Zendy; Barton Geoffrey W. | Zendy

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Impact of Surfactant Chemistry on Bubble Column Systems

Author(s) -

McClure Dale D.,

Deligny Julien,

Kavanagh John M.,

Fletcher David F.,

Barton Geoffrey W.

Publication year - 2014

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.201300711

Subject(s) - pulmonary surfactant , partition coefficient , chemistry , bubble , defoamer , chromatography , octanol , chemical engineering , mechanics , dispersant , engineering , dispersion (optics) , biochemistry , physics , optics

The impact of surfactant addition on the overall holdup, drag coefficient, and bubble size distribution (BSD) in a bubble column operating at industrially relevant superficial velocities was analyzed. A range of surfactants was examined, including alcohols, sugars, and antifoaming agents. It was ascertained that the effect of a surfactant on the holdup and BSD could be related to the chemical structure of the compound, specifically its hydrophilic/hydrophobic nature as characterized by the octanol/water partition coefficient. Addition of 2‐propanol to an air/water system induces a behavior similar to the fermentation media used in aerobic bioprocesses, meaning that such a system can be applied as a meaningful physical analogue in pilot‐scale experimentation.

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