Feasibility and sequencing studies for homoazeotropic distillation in a batch rectifier with continuous entrainer feeding

A method has been developed for the assessment of the feasibility and for the sequencing of homoazeotropic distillation in a batch rectifier under continuous entrainer feeding. The method is based on the calculation of the still path and possible composition profiles of the column sections. The appl...

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Bibliographic Details
Published in:Computers & chemical engineering 1998-01, Vol.22, p.S653-S656
Main Authors: Lelkes, Z., Lang, P., Otterbein, M.
Format: Article
Language:English
Subjects:
Applied sciences
Batch distillation
Chemical engineering
Distillation
Exact sciences and technology
Extractive distillation
Feasibility
Homoazeotropic distillation
Sequencing
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Summary:A method has been developed for the assessment of the feasibility and for the sequencing of homoazeotropic distillation in a batch rectifier under continuous entrainer feeding. The method is based on the calculation of the still path and possible composition profiles of the column sections. The application of the method is presented by two examples. In both cases minimum boiling point azeotropic mixtures are separated. In the first case a heavy solvent, in the second a light entrainer is used. The most important conclusions were also experimentally verified.
ISSN:0098-1354
1873-4375
DOI:10.1016/S0098-1354(98)00117-3