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Dynamics of cyclic fixed bed ion exchange with counter‐current regeneration: An analysis based on a linear mass transfer model
Author(s) -
Tan K. S.,
Spinner I. H.
Publication year - 1972
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450500516
Subject(s) - mass transfer , softening , current (fluid) , mechanics , control theory (sociology) , ion , boundary value problem , transfer function , transient (computer programming) , linear system , process (computing) , mathematics , biological system , thermodynamics , chemistry , mathematical analysis , computer science , physics , engineering , statistics , control (management) , organic chemistry , artificial intelligence , biology , operating system , electrical engineering
Solutions are given for the transient and cyclic steady state performance of fixed bed ion exchange when operated with counter‐current regeneration. A mass transfer model which makes use of linear isotherms and linear driving force rate equations is applied in obtaining the solutions to this boundary value problem. Explicit calculation methods for large time parameter systems and implicit methods for small time parameter systems are illustrated. The model is found to predict adequately the experimental results for a sea water softening process.