Measurements and Correlation of Isobaric Vapor–Liquid Equilibria for the Binary Systems of Cyclohexanol + Cyclohexyl Formate and Cyclopentanol + Cyclopentyl Formate under Various Pressures,Journal of Chemical & Engineering Data

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Measurements and Correlation of Isobaric Vapor–Liquid Equilibria for the Binary Systems of Cyclohexanol + Cyclohexyl Formate and Cyclopentanol + Cyclopentyl Formate under Various Pressures
Journal of Chemical & Engineering Data ( IF 2.0 ) Pub Date : 2020-04-28 , DOI: 10.1021/acs.jced.9b00746
Tomáš Sommer ₁ , Martin Zapletal ₁ , Jiří Trejbal ₁

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Data of vapor–liquid equilibria are essential in the design of a separation unit in the technology of cyclic alkene indirect hydration in the presence of formic acid. This work aims at measuring the vapor–liquid equilibria (VLE) data of the binary systems cyclohexanol + cyclohexyl formate and cyclopentanol + cyclopentyl formate under various pressures and to correlate these data by nonrandom-two liquid and universal quasichemical models to obtain binary interaction parameters that will be used for the design of a distillation unit. According to the best of our knowledge, the VLE of cyclopentanol + cyclopentyl formate binary system has not been published in the literature. Furthermore, the accuracy of the experimental data fitting for the system of cyclohexanol + cyclohexyl formate was compared to a previously published model. Moreover, the model obtained in this work was tested for data prediction under higher pressures, and good accuracy was achieved. Also, the thermodynamic consistency of the experimental data was evaluated by Fredenslund test, and the data fitting accuracy was calculated based on average absolute deviation and root-mean-square-error values.

中文翻译：

环己醇+环己基甲酸酯和环戊醇+环戊基甲酸酯二元体系在压力下的等压蒸气-液体平衡的测量和相关

在甲酸存在下，环烯烃间接水合技术中分离单元设计中，汽液平衡数据至关重要。这项工作旨在测量在不同压力下二元系统环己醇+甲酸环己基酯和甲酸环戊醇+环戊基酯的二元体系的气液平衡（VLE）数据，并通过非随机两液体和通用拟化学模型将这些数据关联起来，以获得二元相互作用参数，将用于蒸馏装置的设计。据我们所知，环戊醇+甲酸环戊酯二元体系的VLE尚未在文献中发表。此外，将环己醇+甲酸环己酯系统的实验数据拟合的准确性与以前发布的模型进行了比较。此外，在较高压力下测试了这项工作中获得的模型以进行数据预测，并获得了良好的准确性。此外，通过弗雷登斯隆德（Fredenslund）测试评估实验数据的热力学一致性，并基于平均绝对偏差和均方根误差值计算数据拟合精度。

更新日期：2020-04-28

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