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Improvement in separation of the batch‐type thermal diffusion column with impermeable barriers inserted between the plates
Author(s) -
Weitsai Shau,
Yeh HoMing
Publication year - 1989
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.5450670410
Subject(s) - column (typography) , diffusion , separation (statistics) , materials science , thermal , type (biology) , thermal diffusivity , analytical chemistry (journal) , chromatography , chemistry , thermodynamics , mathematics , physics , geometry , geology , statistics , paleontology , connection (principal bundle)
Rather than one impermeable barrier, the installation of more impermeable barriers between the plates in a batch‐type thermal diffusion column substantially enhances the separation efficiency by further properly reducing the remixing effect. Theoretical analysis shows that when the barriers are installed at the best positions, maximum degree of separation, maximum concentration of the top product or minimum concentration of the bottom product may be obtained. Considerable improvement is obtained especially when the ratio K' ; of transport constants (i.e. K c / K d ) is large.