分壁式萃取精馏分离正丁醇和氯苯的模拟  

SIMULATION OF SEPARATION OF n-BUTANOL AND CHLOROBENZENE BY EXTRACTIVE DISTILLATION IN DIVIDING WALL COLUMN

作　　者：马春蕾 王琦 Ma Chunlei;Wang Qi(Department of Chemistry and Chemical Engineering,Taiyuan Institute of Technology,Taiyuan 030008,Shanxi,China)

机构地区：[1]太原工业学院化学与化工系

出　　处：《精细石油化工》2019年第6期76-80,共5页Speciality Petrochemicals

摘　　要：正丁醇和氯苯常压下会形成二元最低共沸物。以苯乙酮为萃取剂,采用分壁式萃取精馏和传统双塔萃取精馏对正丁醇-氯苯共沸物进行分离模拟研究。两种分离方法均可实现二者的有效分离,分壁式萃取精馏流程得到的正丁醇和氯苯质量分数分别为99.94%和99.92%。和传统双塔萃取精馏相比,分壁式萃取精馏冷凝器热负荷降低6.86%,再沸器热负荷降低4.14%,在实现高纯度分离的同时实现了有效节能。The lowest binary azeotrope can be formed between n-butanol and chlorobenzene at atmospheric pressure.Acetophenone was used as extractive agent to simulate the separation of the azeotrope by dividing wall extractive distillation process and traditional two-column extractive distillation process.Both separation methods can achieve effective separation.The mass fractions of n-butanol and chlorobenzene obtained by the dividing wall extractive distillation process are 99.94% and 99.92%,respectively.Compared with the traditional two-column extractive distillation process,energy saving of condenser and reboiler by dividing wall extractive distillation process is 6.86%and 4.14%,respectively.High purity separation is realized and energy saving is realized effectively.

关 键 词：正丁醇 氯苯 分壁式萃取精馏 节能 

分 类 号：TQ028.31[化学工程]