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Optimization of the countercurrent moving‐bed chromatographic separator
Author(s) -
Fish Barry B.,
Carr Robert W.,
Aris Rutherford
Publication year - 1993
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.690391006
Subject(s) - countercurrent exchange , separator (oil production) , mass transfer , chromatography , chemistry , mass flux , volumetric flow rate , plug flow , thermodynamics , mechanics , physics
A dispersionless, adsorption equilibrium, plug‐flow model of a countercurrent moving‐bed chromatographic separator operating at steady state is investigated. The flux of the constituents of a binary mixture is examined via concentration‐phase plane plots, which reveal a complex behavior depending on a parameter ó, the ratio of solid‐ and fluid‐phase flow of the mobile phase. When the model is modified by incorporating finite mass‐transfer rates, axial concentration profiles exhibit behavior that is characteristic of experimental observations, rather than the predictions of the ideal model. Numerical simulations with the finite mass‐transfer model reveal an optimum operating condition.