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Diffusion from spheres in a continuous‐flow stirred tank
Author(s) -
Liekhus Kevin J.,
Hanley Thomas R.
Publication year - 1990
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.690360706
Subject(s) - spheres , diffusion , mass transfer , residence time distribution , flow (mathematics) , solvent , residence time (fluid dynamics) , continuous stirred tank reactor , thermodynamics , fraction (chemistry) , chemistry , continuous flow , mechanics , constant (computer programming) , materials science , chromatography , physics , organic chemistry , computer science , geotechnical engineering , astronomy , engineering , programming language
Solvent diffusion from spheres at constant mass‐transfer Fourier number, Fo M , in a single continuous‐flow stirred tank (CFST) and in a series of CFSTs is simulated. A transfer efficiency is defined and transfer efficiency curves are constructed as a function of Fo M and the residence time distribution of the spheres in the system. The fraction of solvent removed from the spheres in a series of CFSTs can be approximated using the transfer efficiency curves and knowledge of the operating conditions in each tank. The usefulness of the curves to predict solvent removal from polymer spheres under pilot‐plant conditions is examined.