Abstract: This paper introduces several separation technologies for alcohol-water system，which include not only traditional azeotropic distillation and extraction distillation，but also new membrane separation techniques，such as membrane distillation，pervaporation and membrane contactor. Meanwhile，a brief comparison of characteristics and efficiency for unit operation is made among all the separation methods.

摘要： 主要介绍了醇–水体系分离的几种工艺和新方法，其中包括传统的恒沸精馏和萃取精馏等主流工艺，以及膜蒸馏、渗透汽化和膜接触器等新型膜分离技术。在分析以上工艺基本原理的基础上，对其具体的性能参数和操作特点进行了比较。