Isobaric Vapor–Liquid Equilibrium Data for Water (1) + 2-Methyl-propan-1-ol (2), 2-Methyl-propan-1-ol (1) + Pyridine (2), and Water (1) + 2-Methyl-propan-1-ol (2) + Pyridine (3) Systems,Journal of Chemical & Engineering Data

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Isobaric Vapor–Liquid Equilibrium Data for Water (1) + 2-Methyl-propan-1-ol (2), 2-Methyl-propan-1-ol (1) + Pyridine (2), and Water (1) + 2-Methyl-propan-1-ol (2) + Pyridine (3) Systems
Journal of Chemical & Engineering Data ( IF 2.0 ) Pub Date : 2020-01-14 , DOI: 10.1021/acs.jced.9b00877
Kuveneshan Moodley ₁ , Mishqah Hussain ₁ , Paramespri Naidoo ₁ , Theasha Naidoo ₁

Affiliation

In this work, isobaric vapor–liquid equilibrium (VLE) measurements were conducted for the binary systems of water (1) + 2-methyl-propan-1-ol (2) and 2-methyl-propan-1-ol (1) + pyridine (2) at approximately 50, 80, and 100 kPa using a dynamic equilibrium apparatus. The water (1) + 2-methyl-propan-1-ol (2) system was found to be partially miscible for some intermediate compositions and exhibited azeotropic behavior, while a maximum boiling azeotrope was observed for the 2-methyl-propan-1-ol (1) + pyridine (2) system at 51 kPa and approximately x₁ = 0.23. Ternary VLE measurements were also conducted for the water (1) + 2-methyl-propan-1-ol (2) + pyridine (3) system at 101.3 kPa. The binary VLE data were modeled using the γ–Φ approach with the Nonrandom Two-Liquid and Universal Quasi-Chemical activity coefficient models and the virial equation of state. The measured data were found to be thermodynamically consistent using the point-type and infinite dilution tests. Ternary VLE data were predicted from the regressed binary interaction parameters and show satisfactory comparison to the experimentally determined VLE data.

中文翻译：

水（1）+ 2-甲基丙烷-1-醇（2），2-甲基丙烷-1-醇（1）+吡啶（2）和水（1）+ 2的等压蒸气-液体平衡数据-甲基丙烷-1-醇（2）+吡啶（3）系统

在这项工作中，对水（1）+ 2-甲基-丙-1-醇（2）和2-甲基-丙-1-醇（1）的二元系统进行了等压汽液平衡（VLE）测量+吡啶（2）在约50、80和100 kPa的压力下使用动态平衡装置。发现水（1）+ 2-甲基-丙烷-1-醇（2）系统可与某些中间组合物部分混溶并表现出共沸行为，而2-甲基-丙烷-1则观察到最大沸腾共沸物-ol（1）+吡啶（2）系统在51 kPa和大约x _1下= 0.23。还以101.3 kPa对水（1）+ 2-甲基-丙-1-醇（2）+吡啶（3）系统进行了三元VLE测量。二元VLE数据是使用γ–Φ方法，非随机两液和通用拟化学活度系数模型以及状态状态方程进行建模的。使用点型和无限稀释测试发现测得的数据在热力学上是一致的。三元VLE数据是根据回归的二元相互作用参数预测的，并且与实验确定的VLE数据具有令人满意的比较。

更新日期：2020-01-15

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