Abstract
Separation of a maximum boiling azeotrope (chloroform / ethyl acetate) with intermediate boiling entrainer (2-chlorobutane) in batch rectifier is studied in this paper with a new configuration variant (IBED) of batch extractive distillation (BED). Feasibility study is performed, then the two configurations are compared on the basis of theoretical considerations, short-cut estimations, and rigorous simulations. More than 20 % of the applied entrainer can be saved if IBED is applied instead of BED for separating the studied system.
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