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Isobaric Binary and Ternary Vapor–Liquid Equilibrium for the Mixture of n-Hexane, Methylcyclopentane and N-Methylpyrrolidone

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Abstract

The vapor–liquid phase equilibrium (VLE) data for binary systems of: n-hexane + methylcyclopentane, n-hexane + N-methylpyrrolidone (NMP), methylcyclopentane + NMP and ternary system of n-hexane + methylcyclopentane + NMP were determined with a modified Rose still at atmospheric pressure (101.3 kPa), and all the binary data passed the Wisniak area test and Van Ness point test, which accorded with the thermodynamic consistency. Three thermodynamic models Wilson, NRTL and UNIQUAC were used to correlate binary data and get binary interaction parameters, then the built-in parameters of the Aspen Plus software were replaced by the obtained model parameters to estimate the ternary data of n-hexane + methylcyclopentane + NMP. The estimation values of the three models are in good agreement with the experimental data. Moreover, the effect of NMP was analyzed, and it found to be an effective candidate extractant for the extractive distillation of n-hexane + methylcyclopentane.

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Acknowledgements

This work was financially supported by the Social Development Program of Taizhou (201710)

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  1. Min Li and Yingmin Yu contributed equally to this work.

Authors and Affiliations

  1. State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum (East China), Qingdao, 266580, Shandong, China

    Min Li, Yingmin Yu, Lili Zhang & Jun Li

  2. Jiangsu Key Laboratory of Chiral Pharmaceuticals Biosynthesis (Taizhou University), College of Pharmacy and Chemistry & Chemical Engineering, Taizhou University, Taizhou, 225300, Jiangsu, China

    Yuhe Song

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  1. Min Li
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Li, M., Yu, Y., Zhang, L. et al. Isobaric Binary and Ternary Vapor–Liquid Equilibrium for the Mixture of n-Hexane, Methylcyclopentane and N-Methylpyrrolidone. J Solution Chem 50, 1258–1284 (2021). https://doi.org/10.1007/s10953-021-01116-0

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