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Isothermal and Isobaric Vapor–Liquid Equilibrium and Excess Molar Enthalpy of the Binary Mixtures of 2-Methoxy-2-methylpropane + 2-Methyl-2-butanol or + 2-Butanol

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Department of Biotechnology and Chemical Technology, School of Chemical Technology, Aalto University, Espoo, Finland
University Blaise Pascal, Insitute of Chemistry of Clermont-Ferrand, Clermont-Ferrand, France
*Tel. +358 50 361 5082. Fax. +358 9 4702 2694. E-mail: [email protected]
Cite this: J. Chem. Eng. Data 2015, 60, 9, 2655–2664
Publication Date (Web):August 5, 2015
https://doi.org/10.1021/acs.jced.5b00300
Copyright © 2015 American Chemical Society

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    Abstract

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    Low molecular weight ethers have been used for many years as enhancers for fossil fuels combustion. A gradual replacement of mineral oils by bio-oils requires additional knowledge about the thermodynamic properties of bio-alcohol and ether mixtures. In this work, isothermal vapor–liquid equilibria (VLE) of the binary mixture of methyl tert-butyl ether (MTBE, 2-methoxy-2-methylpropane) with 2-methyl-2-butanol and MTBE with 2-butanol were measured isothermally at 323 K and at constant 90.1 kPa pressure with a recirculation still apparatus. Excess molar enthalpy (hE) was measured for two binary mixtures at 308 K, 323 K, and 363 K by using a SETARAM C80 calorimeter equipped with a flow mixing cell. A comprehensive consistency analysis was performed for the obtained data, and the experimental data were correlated with the nonrandom two liquid and universal quasichemical activity coefficient models. The results were compared with UNIFAC-Dortmund and COSMO-RS predictive models. The investigated mixtures are close to ideal and show small positive deviation from Raoult’s law. Calorimetric measurements show large positive molar excess enthalpy that decreases with the temperature for both investigated binary mixtures.

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    Cited By

    This article is cited by 2 publications.

    1. Shivan Mavalal, Thavashni Chetty, Kuveneshan Moodley. Isothermal Vapor–Liquid Equilibrium Measurements for the Pentan-2-one + Propan-1-ol/Butan-1-ol System within 342–363 K. Journal of Chemical & Engineering Data 2019, 64 (6) , 2649-2656. https://doi.org/10.1021/acs.jced.9b00100
    2. Anna Zaitseva, Juha-Pekka Pokki, Huy Quang Le, Ville Alopaeus, and Herbert Sixta . Vapor–Liquid Equilibria, Excess Enthalpy, and Density of Aqueous γ-Valerolactone Solutions.. Journal of Chemical & Engineering Data 2016, 61 (2) , 881-890. https://doi.org/10.1021/acs.jced.5b00724

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