In this study, the isothermal binary vapour-liquid equilibrium (VLE) data for the butan-1-ol + butane-1,4-diol/butane-2,3-diol system was measured and modelled, for use in the design and rating of separation processes. P-T-x-y equilibrium measurements were performed at four temperatures from approximately 353–388 K. A dynamic-analytical apparatus was utilized to perform the measurements at sub-atmospheric conditions. The measured data was modelled by employing the γ-Φ approach. The liquid-phase correction was accounted for using the Non-Random Two-Liquid and Universal Quasi-Chemical activity coefficient models while the Hayden and O'Connell correlation for the virial equation of state was used to account for the vapour-phase correction. Thermodynamic consistency tests were performed using the point and area tests for the measured experimental data and the data sets passed both tests.

在这项研究中，对丁烷-1-醇+丁烷-1,4-二醇/丁烷-2,3-二醇系统的等温二元蒸气-液体平衡（VLE）数据进行了测量和建模，以用于设计和分离过程的等级。PTxy平衡测量是在大约353–388 K的四个温度下进行的。使用动态分析设备在低于大气压的条件下进行测量。通过使用γ-Φ方法对测量数据进行建模。液相校正是使用非随机两液和通用拟化学活度系数模型解决的，而与状态状态方程有关的Hayden和O'Connell相关性则用于校正气相校正。使用点和面积测试对测得的实验数据进行热力学一致性测试，数据集通过这两个测试。