Vapor-liquid equilibrium data for the binary system isopropanol+water at 60 kPa and 80 kPa

IF 2.2 3区工程技术 Q3 CHEMISTRY, PHYSICAL

Journal of Chemical Thermodynamics Pub Date : 2024-07-01 DOI:10.1016/j.jct.2024.107342

Camilla Barbieri, Giorgia De Guido, Stefania Moioli

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Abstract

In this work, experimental Vapor-Liquid Equilibrium (VLE) data for the Isopropanol + Water system under vacuum conditions at 60 kPa and at 80 kPa, for which no experimental evidences have been found in the literature, are reported. The experimental investigation of the isobaric equilibrium has been carried out by GASP at the Process Thermodynamics laboratory (PT lab) of Politecnico di Milano by employing an all-glass dynamic recirculation still. The collected experimental data, together with those already available in the literature at other conditions, have been used for the evaluation of the thermodynamic model that best fits the data. Four different models have been considered and their performances have been checked through the calculation of the Absolute Average Deviation (AAD%). The lowest AAD% has been found for the UNIFAC model only for isobaric data, not for the isothermal points. The regression tool available in Aspen Plus® V14 has been used to fit the binary interaction parameters of the NRTL activity model.

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60 kPa 和 80 kPa 下异丙醇+水二元体系的气液平衡数据

本研究报告了异丙醇 + 水体系在 60 kPa 和 80 kPa 真空条件下的汽液平衡 (VLE) 实验数据。米兰理工大学过程热力学实验室（PT 实验室）的 GASP 采用全玻璃动态再循环蒸馏器对等压平衡进行了实验研究。收集到的实验数据以及文献中已有的其他条件下的数据被用于评估最适合数据的热力学模型。我们考虑了四种不同的模型，并通过计算绝对平均偏差 (AAD%) 检验了它们的性能。发现 UNIFAC 模型的绝对平均偏差率最低，但仅适用于等压数据，而不适用于等温点。Aspen Plus® V14 中的回归工具用于拟合 NRTL 活性模型的二元相互作用参数。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Chemical Thermodynamics 工程技术-热力学

CiteScore

5.60

自引率

15.40%

发文量

199

审稿时长

79 days

期刊介绍： The Journal of Chemical Thermodynamics exists primarily for dissemination of significant new knowledge in experimental equilibrium thermodynamics and transport properties of chemical systems. The defining attributes of The Journal are the quality and relevance of the papers published. The Journal publishes work relating to gases, liquids, solids, polymers, mixtures, solutions and interfaces. Studies on systems with variability, such as biological or bio-based materials, gas hydrates, among others, will also be considered provided these are well characterized and reproducible where possible. Experimental methods should be described in sufficient detail to allow critical assessment of the accuracy claimed. Authors are encouraged to provide physical or chemical interpretations of the results. Articles can contain modelling sections providing representations of data or molecular insights into the properties or transformations studied. Theoretical papers on chemical thermodynamics using molecular theory or modelling are also considered. The Journal welcomes review articles in the field of chemical thermodynamics but prospective authors should first consult one of the Editors concerning the suitability of the proposed review. Contributions of a routine nature or reporting on uncharacterised materials are not accepted.

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