Premium
Measurement and modelling of droplet coalescence and breakage in a pulsed‐plate extraction column
Author(s) -
Garg M. O.,
Pratt H. R. C.
Publication year - 1984
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.690300312
Subject(s) - breakage , coalescence (physics) , mechanics , extraction (chemistry) , population , chemistry , chromatography , materials science , analytical chemistry (journal) , thermodynamics , composite material , physics , demography , sociology , astrobiology
Droplet coalescence and breakage rats in a pulsed‐plate extraction column have been measured using the colorimetric method of Hamilton and Pratt (1980). The results were interpreted in terms of rate constants, defined appropriately for the mixer‐settler and emulsion regions of operation respectively, using a discrete population balance model. It is shown that the resulting values of these constants can be used to predict accurately the steady‐state droplet‐size distribution and apparent coalescence rate. Computations for a typical extraction system indicated that the effect of polydispersivity on performance is surprisingly small for the pulsed plate column.