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Scale‐up of agitated vessels gas‐liquid mass transfer
Author(s) -
Miller Donald N.
Publication year - 1974
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690200303
Subject(s) - contactor , bubble , mass transfer , impeller , mechanics , mass transfer coefficient , sparging , scale up , stripping (fiber) , materials science , chemistry , thermodynamics , composite material , physics , classical mechanics , power (physics)
Procedures are developed for predicting liquid film controlled mass transfer in gas sparged contactors with and without mechanical agitation. Mass transfer is shown to depend on mean bubble size. Bubble shape, motion, and interface fluctuations are all properties that are associated with bubble size, which, in turn, can be determined from the physical characteristics of the contacting system. Experimental measurements were made on CO 2 stripping from aqueous solution with air in 0.00252, 0.0252, and 0.252 m 3 tanks. The vessels were geometrically similar, fully baffled, and equipped with four flat‐blade impellers and spargers. These measurements are used to evaluate earlier correlations and to develop improved scale‐up procedures.