基于环己烷和正丙醇二元共沸特性的分析，采用变压精馏对环己烷和正丙醇进行分离。为了实现变压精馏工艺的节能，提出完全热集成变压精馏工艺。利用化工流程模拟软件，以NRTL模型为物性计算方法对分离过程进行模拟。结果表明，变压精馏和完全热集成变压精馏均能实现环己烷和正丙醇的有效分离，两者质量分数均高于99.5%。与变压精馏工艺相比，采用完全热集成变压精馏工艺，再沸器热负荷可节能32.94%，冷凝器热负荷节能达35.70%。

Pressure swing distillation is used for the separation of cyclohexane and n-propanol azeotrope based on the analysis of their azeotropic characteristics.To realize energy conversation in pressure swing distillation process,a fully heat-integrated pressure swing distillation is proposed.This separation process is simulated by means of chemical process simulation software using NRTL model as the physical property calculation method.The results illustrate that the separation of cyclohexane and n-propanol can be achieved effectively by both the pressure swing distillation and the fully heat-integrated pressure swing distillation.The mass fractions of cyclohexane and n-propanol obtained by both two processes are higher than 99.5%.The fully heat-integrated pressure swing distillation can save energy by 32.94% in reboiler and 35.70% in condenser compared with the pressure swing distillation.