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Design and minimum reflux for heterogeneous azeotropic distillation columns
Author(s) -
Pham Hoanh N.,
Ryan Peter J.,
Doherty Michael F.
Publication year - 1989
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.690351002
Subject(s) - distillation , homogeneous , reflux , chemistry , fractional distillation , azeotropic distillation , chromatography , trace (psycholinguistics) , impurity , simple (philosophy) , process engineering , thermodynamics , mathematics , engineering , organic chemistry , physics , medicine , linguistics , philosophy , disease , epistemology , pathology
A simple design technique for heterogeneous distillation columns has been developed. The underlying geometric conditions which govern minimum reflux are shown to share certain common features with homogeneous distillations, but differ in some important respects. It is shown that heterogeneous columns display some unusual sensitivities to the design parameters. The most notable being the drastic swings in the composition and temperature profiles with very small changes in the level of trace impurities in the product stream.