The binary benzene–n-propanol azeotrope can be formed in chemical production. Extractive distillation is an important azeotrope separation technology and an ionic liquid is a type of excellent entrainer. Aspen Plus software was used to simulate the extractive distillation process. The separation performance of ionic liquids was evaluated in terms of total annual cost of the extractive distillation process. The separation mechanism of the azeotrope was quantitatively explained using intermolecular interaction energy.

中文翻译：

---

以离子液体为夹带剂萃取精馏苯-正丙醇的设计与优化

二元苯-正丙醇共沸物可在化工生产中形成。萃取精馏是一种重要的共沸分离技术，离子液体是一种优良的共沸剂。Aspen Plus 软件用于模拟萃取蒸馏过程。离子液体的分离性能是根据萃取蒸馏过程的年总成本来评估的。使用分子间相互作用能定量解释共沸物的分离机制。