Azeotropic distillation process is widely used to separate non-ideal binary mixtures into their constituent pure components. 1-Propanol dehydration was used as case study and diisopropyl ether was analysed as possible entrainer in an azeotropic distillation. The separation of some alcohols from their aqueous solution is a challenging task because these aqueous mixture forms minimum boiling azeotrope.

In this way, isobaric vapor-liquid and vapour-liquid-liquid equilibrium data were measured for the 1-propanol+ water + diisopropyl ether ternary mixture at 101.3 kPa. The data were correlated by NRTL and UNIQUAC models.

A separation sequence (a decanter and a single-feed distillation column) for 1-propanol dehydration using diisopropyl ether was proposed. The simulation of the separation sequence was carried out satisfactorily by Aspen Hysys® using the thermodynamic model NRTL with the binary parameters obtained in this work. Moreover, the effect of temperature decantation was investigated in order to reduce the energy demand of the process.

共沸蒸馏方法被广泛用于将非理想的二元混合物分离为其纯组分。以1-丙醇脱水为案例研究，并在共沸蒸馏中分析了二异丙醚作为可能的夹带剂。从水溶液中分离某些醇是一项艰巨的任务，因为这些水性混合物会形成沸腾最小的共沸物。

以这种方式，在101.3 kPa下测量了1-丙醇+水+二异丙醚三元混合物的等压蒸气-液体和蒸气-液体-液体平衡数据。数据通过NRTL和UNIQUAC模型进行关联。

提出了使用二异丙基醚进行1-丙醇脱水的分离程序（倾析器和单进料蒸馏塔）。AspenHysys®使用热力学模型NRTL并在此工作中获得了二元参数，令人满意地进行了分离序列的模拟。此外，为了降低过程的能量需求，研究了温度倾析的效果。