"Models for mass transfer to droplets based on film theory with first order chemical reaction are proposed and compared with experimental data. The experimental extraction data is available from the work by Andoe (1968). The physical system used was benzene as a continuous phase and water as a dispersed phase with 2-chloro-2- methyl propane the solute diffusing into and reacting in the droplet. This system had a high interfacial tension (31.0 dynes/cm) and droplet Reynolds numbers ranging from 600 to 1345.
The predicted results of this work are in the form of the dimensionless total mass transferred to the droplet vs dimensionless contact time. These predictions are compared with the dimensionless experimental data presented by Andoe with corrections for end effects.
The non-oscillating drop model developed here deviated from the experimental data by an Average Absolute Percent Deviation (AAPD) of about 78.6%. The cause of this wide deviation is suspected to be related to the use in this model of the Skelland and Wellek (1964) . Sherwood number correlation, which was developed from low interfacial tension systems (a < 5 dynes/cm). Future work will be necessary to reduce this large deviation.
The oscillating drop model compared more favorably with experimental data, the AAPD being about 14 .4%. The Sherwood number correlation for mass transfer without reaction which was used in the developed model, was previously found to be applicable to both low and high interfacial tension systems by Brunson and Wellek (1970)"--Abstract, page ii.
Wellek, Robert M.
Poling, Bruce E.
Pursell, Lyle E.
Gaddy, J. L.
Chemical and Biochemical Engineering
M.S. in Chemical Engineering
University of Missouri--Rolla
xi, 50 pages
© 1973 Alan Wayne Smith, All rights reserved.
Thesis - Open Access
Mass transfer -- Mathematical models
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Link to Catalog Record
Smith, Alan Wayne, "Liquid-liquid extraction with first order reaction : A mathematical simulation" (1973). Masters Theses. 3508.