Measurement of infinite dilution activity coefficients of 1-alkanols (C1–C5) in water as a function of temperature (273–373 K)

Vrbka, Pavel; Fenclová, Dana; Laštovka, Václav; Dohnal, Vladimı́r

doi:10.1016/j.fluid.2005.08.018

Cited by 34 publications

(28 citation statements)

References 19 publications

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“…In accordance to eq , change of the temperature dependency of the infinite dilution activity coefficient indicates change of the slope of the partial molar excess enthalpy with respect to concentration. The corresponding change of the slope of the infinite dilution activity coefficient with respect to the temperature was observed for several ethanoates and alcohols . In the water + GVL mixture, the h E increases with increasing temperature and the S-shape part disappears (see Figure ).…”

Section: Resultsmentioning

confidence: 76%

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

et al. 2016

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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 (h E ) 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 h E 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.

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Section: Resultsmentioning

confidence: 76%

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

et al. 2016

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“…Moreover, the infinite-dilution activity coefficient of butanol in water at 298 K is 51.2, 40 much higher than that of ethanol in water (3.91). 41 Consequently, butanol has stronger affinity to resin than ethanol, resulting in the reduction of ethanol adsorption capacity in the BE binary system.…”

Section: Modeling Of the Sorption Behaviors Of Abe Binary And Ternarymentioning

confidence: 99%

Acetone–butanol–ethanol competitive sorption simulation from single, binary, and ternary systems in a fixed‐bed of KA‐I resin

Zhuang

Ying

et al. 2014

Biotechnology Progress

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Separation of butanol based on sorption methodology from acetone-butanol-ethanol (ABE) fermentation broth has advantages in terms of biocompatibility and stability, as well as economy, and therefore gains much attention. In this work a chromatographic column model based on the solid film linear driving force approach and the competitive Langmuir isotherm equations was used to predict the competitive sorption behaviors of ABE single, binary, and ternary mixture. It was observed that the outlet concentration of weaker retained components exceeded the inlet concentration, which is an evidence of competitive adsorption. Butanol, the strongest retained component, could replace ethanol almost completely and also most of acetone. In the end of this work, the proposed model was validated by comparison of the experimental and predicted ABE ternary breakthrough curves using the real ABE fermentation broth as a feed solution.

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“…(12). In a previous investigation [10], the D value was approximated using a finite difference method as follows:…”

Section: Thermodynamic Consistency (Tc) Linesmentioning

confidence: 99%

“…As an example, the constant temperature VLE for the methanol(1)-water(2) binary was calculated using the following TC line: Vrbka et al [12] was used. This correlation equation and Eq.…”

Section: Prediction Of the Binary Vlementioning

confidence: 99%

An empirical consistency test using thermodynamic consistency lines for the VLE data of 7262 constant-temperature and 5167 constant-pressure binaries

Kato

2011

Fluid Phase Equilibria

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Measurement of infinite dilution activity coefficients of 1-alkanols (C1–C5) in water as a function of temperature (273–373 K)

Cited by 34 publications

References 19 publications

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

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

Acetone–butanol–ethanol competitive sorption simulation from single, binary, and ternary systems in a fixed‐bed of KA‐I resin

An empirical consistency test using thermodynamic consistency lines for the VLE data of 7262 constant-temperature and 5167 constant-pressure binaries

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