精馏是石油化学工业的高能耗操作单元,本文从充分利用精馏过程的热能,提高精馏系统的热力学效率,以及减少精馏过程对能量的需要等几个方面论述了精馏过程的节能措施,对各个类型的主要节能方法、优缺点和适用范围进行了综述,并介绍了我国精馏过程的节能现状与趋势。 Distillation is a high-energy operating unit of the petrochemical industry. This article discusses the energy-saving of the distillation process from the aspects of fully utilizing the thermal energy of the rectification process, improving the thermodynamic efficiency of the rectification system and reducing the energy requirement of the rectification process Measures, the main types of energy-saving methods for all types, advantages and disadvantages and the scope of application were reviewed, and introduced the status of China’s energy-saving distillation process and trends.