对5wt/a戊烷装置,比较了常规精馏和热集成精馏两种工艺方案,并利用化工过程模拟软件Aspen Plus,对两种工艺方案进行了模拟优化,确定了各自的最优操作条件。通过对比,热集成精馏工艺比常规精馏节约能耗33.3%,装置最终选择了热集成精馏工艺,生产实践较好,对同类装置有一定的借鉴意义。 For the 5wt / a pentane plant, two process schemes, conventional distillation and thermal integrated distillation, were compared. The two process schemes were simulated and optimized using Aspen Plus, a chemical process simulation software. The optimal operating conditions . By contrast, the thermal integrated rectification process saves 33.3% of the energy consumption compared with the conventional rectification, and the device finally selects the thermal integrated rectification process, which has good production practice and has certain reference value for similar devices.