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Isothermal Vapor–Liquid Equilibrium (VLE) and Vapor–Liquid–Liquid Equilibrium (VLLE) Data for Two Binary Systems Containing Perfluorohexane with Carbon Monoxide or Hydrogen Sulfide at (293, 313, and 333) K

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Thermodynamics Research Unit, School of Engineering, University of KwaZulu-Natal, Howard College Campus, Durban 4041, South Africa
MINES ParisTech, CTP−Centre Thermodynamique des Procédés, Rue Saint Honoré, 77305 Fontainebleau, France
*E-mail: [email protected]. Tel: +27312603128. Fax: +27312601118.
Cite this: J. Chem. Eng. Data 2015, 60, 8, 2461–2468
Publication Date (Web):August 4, 2015
https://doi.org/10.1021/acs.jced.5b00318
Copyright © 2015 American Chemical Society

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    Abstract

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    Isothermal vapor–liquid equilibrium (VLE) and vapor–liquid–liquid equilibrium (VLLE) data are presented for binary systems containing perfluorohexane (C6F14) with carbon monoxide (CO) or hydrogen sulfide (H2S). Measurements were undertaken at three temperatures, viz. (293, 313, and 333) K, with pressures ranging from (0.322 to 24.497) MPa. An apparatus based on the “static-analytic” technique was used for the measurements. The equilibrium cell is equipped with a pneumatic capillary sampler, and equilibrium phase analysis is undertaken using a gas chromatograph. The uncertainties in the experimental measurements are 0.02 K, 0.0012 MPa, and 0.006 for temperature, pressure, and equilibrium phase mole fraction, respectively. The experimental data was modeled using the direct method using three different sets of thermodynamic models. The VLE data measured for the CO + C6F14 system were correlated using the Peng–Robinson equation of state with the Mathias–Copeman alpha function and the Wong–Sandler mixing rule incorporating the NRTL (nonrandom two-liquid) activity coefficients model, while the VLE and VLLE data measured for the H2S + C6F14 system were correlated using the Soave–Redlich–Kwong equation of state incorporating the Mathias–Copeman alpha function, and the MHV1 or MHV2 (modified Huron–Vidal first and second order) mixing rules utilizing the NRTL activity coefficient model.

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    Cited By

    This article is cited by 5 publications.

    1. Xuejuan Wei, Xiaopeng Chen, Linlin Wang, Xiaojie Wei, Jiaqi Liang, Zehui Xiong, Jiezhen Liang. Isothermal Vapor–Liquid Equilibrium Data for a Binary System of (−)-α-Pinene + (−)-Limonene and a Quaternary System of (−)-α-Pinene + (−)-Limonene + Water + Ethephon at 313.2, 323.2, and 333.2 K. Journal of Chemical & Engineering Data 2023, 68 (8) , 1963-1975. https://doi.org/10.1021/acs.jced.3c00097
    2. Mark Williams-Wynn, Wayne Michael Nelson, Zoubir Tebbal, Paramespri Naidoo, Latifa Negadi, and Deresh Ramjugernath . Binary Vapor–Liquid Equilibrium Data for Perfluorooctane with Light Gases (Oxygen, Nitrogen, and Methane). Journal of Chemical & Engineering Data 2017, 62 (12) , 4301-4309. https://doi.org/10.1021/acs.jced.7b00657
    3. Ralf Dohrn, Stephanie Peper, Catinca Secuianu, José M.S. Fonseca. High-pressure fluid-phase equilibria: Experimental methods, developments and systems investigated (2013–2016). Fluid Phase Equilibria 2024, 579 , 113978. https://doi.org/10.1016/j.fluid.2023.113978
    4. Ali Aminian. Modeling the Vapor-Liquid equilibria of binary and ternary systems comprising associating and non-Associating compounds by using Perturbed-Chain Statistical association fluid Theory. Part I. The Journal of Chemical Thermodynamics 2021, 162 , 106563. https://doi.org/10.1016/j.jct.2021.106563
    5. Zoubir Tebbal, Wayne Michael Nelson, Paramespri Naidoo, Latifa Negadi, Deresh Ramjugernath. Binary vapour-liquid equilibrium data for C7 and C9 straight-chain perfluorocarbons with ethylene. Fluid Phase Equilibria 2016, 429 , 37-44. https://doi.org/10.1016/j.fluid.2016.08.015

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