Abstract

The extractive distillation of an isobutanol–isobutyl acetate mixture using dimethylformamide has been considered. Schemes that use vapor recompression heat pumps and partially thermally coupled distillation systems both without and with a heat pump are considered in comparison with the conventional schemes. It is shown that the use of heat pumps in the process under investigation allows for a considerable reduction in the energy consumption and total annual costs.

中文翻译：

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使用部分热耦合蒸馏系统和热泵减少使用二甲基甲酰胺提取异丁醇-乙酸异丁酯混合物的蒸馏过程中的能耗

摘要

已经考虑使用二甲基甲酰胺对异丁醇-乙酸异丁酯混合物进行萃取蒸馏。与常规方案相比，考虑使用既有热泵又有热泵的蒸气再压缩热泵和部分热耦合蒸馏系统的方案。结果表明，在所研究的过程中使用热泵可以显着降低能耗和年度总成本。