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Model Assessment for the Prediction of Mass Transfer Coefficients in Liquid‐Liquid Extraction Columns
Author(s) -
Outili N.,
Meniai A.H.,
Gneist G.,
Bart H.J.
Publication year - 2007
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.200600356
Subject(s) - mass transfer , mass transfer coefficient , drop (telecommunication) , thermodynamics , chemistry , liquid liquid , toluene , work (physics) , liquid drop , extraction (chemistry) , liquid–liquid extraction , chromatography , range (aeronautics) , mechanics , materials science , physics , organic chemistry , composite material , computer science , telecommunications
A large number of theories are reported in the literature for the calculation of individual mass transfer coefficients and each has a well defined application range, which depends on the nature of the continuous and the dispersed phases. Each theory is also based on a different transfer mode, e.g., the dispersed phase depends essentially on the drop behavior, which is directly related to the drop size. However, an accurate determination of the overall mass transfer coefficient depends upon the choice of the combination of theories to be used for the calculation of the individual mass transfer coefficients, i.e., for the continuous and dispersed phases. In the present work, different combinations for the calculation of the overall mass transfer coefficient have been tested for the commonly recommended Acetone/Toluene/Water system, which is characterized by relatively large drop sizes.