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Measurement and Correlation of Isobaric Vapor–Liquid Equilibrium Data for n-Hexane, Methylcyclopentane and N,N-Dimethylamide Systems at 101.3 kPa

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Abstract

Isobaric vapor–liquid phase equilibrium (VLE) data for binary systems of n-hexane + methylcyclopentane, n-hexane + N,N-dimethylamide (DMF), methylcyclopentane + DMF and ternary system of n-hexane + methylcyclopentane + DMF were generated using a modified Rose still at 101.3 kPa. The thermodynamic consistency for the VLE data were confirmed by the Wisniak’s test. Binary interaction parameters (BIPs) were obtained on the calculation of VLE for these binary systems by Wilson, NRTL and UNIQUAC activity coefficient models. The estimation values of the three models showed a good fit with the experimental data. The BIPs were also employed to predict the T–x–y data of ternary system n-hexane + methylcyclopentane + DMF. The results presented a favorable match between experimental data and the predicted values. The y–x diagram of methylcyclopentane + n-hexane system was plotted with or without DMF, which confirmed that DMF as a extractant has a remarkable effect on the extractive distillation of these two components.

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Data Availability

All data generated or analysed during this study are included in this published article [and its supplementary information files].

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Funding

This work was financially supported by the Natural Science Foundation of Shandong Province (China, Grant No. ZR2020MB12), and supported by State Key Laboratory of Heavy Oil Processing and Chambroad Chemical Industry Research Institute (SKLHOP202101007).

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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

    Yingmin Yu, Min Li, Lili Zhang, Xiaocheng Zhang & Lingxiao Yi

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  1. Yingmin Yu
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  2. Min Li
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  3. Lili Zhang
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  4. Xiaocheng Zhang
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  5. Lingxiao Yi
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Contributions

YY: writing—original draft, validation, visualization, investigation, software; ML: data curation, formal analysis, investigation; LZ: data curation, formal analysis, investigation; XZ: data curation, formal analysis, investigation; LY: conceptualization, methodology, supervision.

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Correspondence to Yingmin Yu.

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Yu, Y., Li, M., Zhang, L. et al. Measurement and Correlation of Isobaric Vapor–Liquid Equilibrium Data for n-Hexane, Methylcyclopentane and N,N-Dimethylamide Systems at 101.3 kPa. J Solution Chem 52, 615–638 (2023). https://doi.org/10.1007/s10953-023-01257-4

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