Separation of ternary mixtures in a batch distillation column with side withdrawal

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• 作者：Demicoli ; D. ; Stichlmair ; J.
• 关键词：Batch distillation ; Cyclic operation ; Side withdrawal ; Zeotropic mixtures
• 刊名：Computers and Chemical Engineering
• 出版年：2004
• 期刊代码：35_00981354
• 类别：et
• 出版时间：May 15, 2004
• 卷：28
• 期：5
• 页码：643-650
• 文件大小：507 K

摘要

In this paper we introduce a novel operation policy for the separation of zeotropic mixtures via batch distillation. The novel policy is based on feasibility studies of a batch distillation column provided with a side withdrawal. The process is illustrated via computer-based simulations of the purification of an intermediate-boiling component (1-propanol) from a mixture containing a low boiler (ethanol) and a high boiler (1-butanol). Furthermore, the effects of the most important process and design parameters are investigated in detail. A comparison to the middle vessel column is provided at the end of the paper.