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Effects of floating contactors on oxygen transfer and hydrodynamics in a bubble column
Author(s) -
Kang Yong,
Min Bung T.,
Nah Jong B.,
Kim Sang D.
Publication year - 1991
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.280510209
Subject(s) - contactor , dispersion (optics) , bubble , mass transfer coefficient , materials science , volume (thermodynamics) , phase (matter) , oxygen , volume fraction , thermodynamics , mechanics , chemistry , analytical chemistry (journal) , mass transfer , chromatography , optics , physics , composite material , power (physics) , organic chemistry
This study investigates the adoption of floating contactors to promote the rate of oxygen transfer from non‐uniform air bubbles to liquid in a bubble column with continuous operation. The volumetric oxygen transfer coefficient and axial dispersion coefficient of a liquid phase have been analyzed based on the axial dispersion model. Attention was focused on the effects of the volume fraction of the floating contactors on the volumetric oxygen transfer coefficient, axial dispersion coefficient of a liquid phase, and gas phase hold‐up in the bubble column. The results have shown that the volumetric oxygen transfer coefficient and gas phase hold‐up can increase by up to 25% and 13%, respectively, while the axial dispersion coefficient of a liquid phase decreases by up to 30% by adding floating contactors in the column.