Vapor-Liquid Equilibria, Excess Enthalpy, and Density of Aqueous γ-Valerolactone Solutions

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@article{15487f64f6864e0facd87d04eeea23b3,
title = "Vapor-Liquid Equilibria, Excess Enthalpy, and Density of Aqueous γ-Valerolactone Solutions",
abstract = "Thermodynamic measurements were made for the binary mixture of water + γ-valerolactone (GVL) and for pure GVL to facilitate the development of the technology of lignin removal from lignocellulosic biomass (Fang, W.; Sixta, H. Advanced Biorefinery based on the Fractionation of Biomass in γ - Valerolactone and Water. ChemSusChem 2015, 8, 73-76). The density and vapor pressure of pure GVL as a function of temperature were measured and correlated for a wide range of the temperatures and pressures. Isothermal vapor-liquid equilibrium (VLE) data of the binary mixture of water + GVL were measured at 350.2 K with a static total pressure apparatus. Absence of an azeotrope was confirmed by circulation still measurements with diluted GVL solutions. Excess molar enthalpy (hE) of the mixture for the whole range of mole fractions including infinite dilution was measured using a SETARAM C80 calorimeter equipped with a flow mixing cell at 322.6 and 303.2 K. The VLE and hE data were used for the optimization of UNIQUAC and NRTL activity coefficient model parameters. The experimental results are compared herein with those predicted by COSMO-RS and UNIFAC-Dortmund models. The water + GVL binary mixture shows positive deviation from Raoult's law.",
author = "Anna Zaitseva and Pokki, {Juha Pekka} and L{\^e}, {Huy Quang} and Ville Alopaeus and Herbert Sixta",
year = "2016",
doi = "10.1021/acs.jced.5b00724",
language = "English",
volume = "61",
pages = "881--890",
journal = "Journal of Chemical and Engineering Data",
issn = "0021-9568",
publisher = "AMERICAN CHEMICAL SOCIETY",
number = "2",

}

RIS - Lataa

TY - JOUR

T1 - Vapor-Liquid Equilibria, Excess Enthalpy, and Density of Aqueous γ-Valerolactone Solutions

AU - Zaitseva, Anna

AU - Pokki, Juha Pekka

AU - Lê, Huy Quang

AU - Alopaeus, Ville

AU - Sixta, Herbert

PY - 2016

Y1 - 2016

N2 - Thermodynamic measurements were made for the binary mixture of water + γ-valerolactone (GVL) and for pure GVL to facilitate the development of the technology of lignin removal from lignocellulosic biomass (Fang, W.; Sixta, H. Advanced Biorefinery based on the Fractionation of Biomass in γ - Valerolactone and Water. ChemSusChem 2015, 8, 73-76). The density and vapor pressure of pure GVL as a function of temperature were measured and correlated for a wide range of the temperatures and pressures. Isothermal vapor-liquid equilibrium (VLE) data of the binary mixture of water + GVL were measured at 350.2 K with a static total pressure apparatus. Absence of an azeotrope was confirmed by circulation still measurements with diluted GVL solutions. Excess molar enthalpy (hE) of the mixture for the whole range of mole fractions including infinite dilution was measured using a SETARAM C80 calorimeter equipped with a flow mixing cell at 322.6 and 303.2 K. The VLE and hE data were used for the optimization of UNIQUAC and NRTL activity coefficient model parameters. The experimental results are compared herein with those predicted by COSMO-RS and UNIFAC-Dortmund models. The water + GVL binary mixture shows positive deviation from Raoult's law.

AB - Thermodynamic measurements were made for the binary mixture of water + γ-valerolactone (GVL) and for pure GVL to facilitate the development of the technology of lignin removal from lignocellulosic biomass (Fang, W.; Sixta, H. Advanced Biorefinery based on the Fractionation of Biomass in γ - Valerolactone and Water. ChemSusChem 2015, 8, 73-76). The density and vapor pressure of pure GVL as a function of temperature were measured and correlated for a wide range of the temperatures and pressures. Isothermal vapor-liquid equilibrium (VLE) data of the binary mixture of water + GVL were measured at 350.2 K with a static total pressure apparatus. Absence of an azeotrope was confirmed by circulation still measurements with diluted GVL solutions. Excess molar enthalpy (hE) of the mixture for the whole range of mole fractions including infinite dilution was measured using a SETARAM C80 calorimeter equipped with a flow mixing cell at 322.6 and 303.2 K. The VLE and hE data were used for the optimization of UNIQUAC and NRTL activity coefficient model parameters. The experimental results are compared herein with those predicted by COSMO-RS and UNIFAC-Dortmund models. The water + GVL binary mixture shows positive deviation from Raoult's law.

UR - http://www.scopus.com/inward/record.url?scp=84958978076&partnerID=8YFLogxK

U2 - 10.1021/acs.jced.5b00724

DO - 10.1021/acs.jced.5b00724

M3 - Article

AN - SCOPUS:84958978076

VL - 61

SP - 881

EP - 890

JO - Journal of Chemical and Engineering Data

JF - Journal of Chemical and Engineering Data

SN - 0021-9568

IS - 2

ER -

ID: 1658223