Vapour-Liquid Equilibrium with a New Ebulliometer: Ester + Alcohol System at 0.5 MPa

Badajoz, Pedro Susial; Sosa-Rosario, A.; Rios-Santana, Raul

doi:10.1016/s1004-9541(09)60159-2

Cited by 17 publications

(19 citation statements)

References 19 publications

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“…Vapor pressures of ethanol have been published , in the 300 to 446 K range; however, in this work, the pressure in the binary systems is higher than the previously published data. In addition, the pressure control equipment as well as the experimental installation was implemented , to operate at high pressure, and for this reason, new vapor pressures were obtained (Table ).…”

Section: Resultscontrasting

confidence: 69%

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High-Pressure Phase Equilibria in an Ethanol/Water Binary System: Experimental Data and Modeling

et al. 2021

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Experimental data of vapor−liquid equilibria (VLE) are reported for the binary systems: ethanol (1) + water (2) at 100, 1500, and 2000 kPa. The data were verified for thermodynamic consistency by using different low-and high-pressure tests. The following minimum azeotropes were found for the binary systems: x 1,az = y 1,az = 0.899 and T = 351.39 K at 100 kPa, x 1,az = y 1,az = 0.857 and T = 440.70 K at 1500 kPa, and x 1,az = y 1,az = 0.850 and T = 453.83 K at 2000 kPa. The quality of the azeotropic data obtained was established by considering the trend of the bibliographic azeotropic data. The phase behavior was modeled using the Peng−Robinson equation of state (EOS) with several mixing rules and the perturbed-chain statistical associating fluid theory. The experimental data were satisfactorily correlated and a qualitative agreement with these predictive models was observed. ■ RESEARCH HIGHLIGHTS• VLE of water with ethanol was determined at 100, 1500, and 2000 kPa. • Data were verified with the area test, Van Ness direct test, and point-to-point test. • Data at high pressure were verified by using the Gibbs− Duhem equation. • Azeotropic data of water/ethanol were correlated.• VLE data of water + ethanol mixtures are well modeled by using different EOSs.

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Section: Resultscontrasting

confidence: 69%

“… a The combined expanded uncertainties U ( k = 2) are as follows: U ( T ) = 0.4 K and U( p i 0 ) = 3 kPa. b Data from 322 to 375 K are in ref . Data from 442 to 445 K are in ref . …”

Section: Resultsmentioning

confidence: 99%

High-Pressure Phase Equilibria in an Ethanol/Water Binary System: Experimental Data and Modeling

et al. 2021

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“…For boiling points and VLE measurements, a stainless steel ebulliometer, previously described, was constructed with a similar configuration to an ebulliometer copper made and it was equipped in an experimental setup …”

Section: Methodsmentioning

confidence: 99%

“…Therefore, as a continuation of previous works, − in this paper, T–x–y of VLE measurements were obtained using a dynamic recirculating ebulliometer at 0.15 MPa for the binary mixtures of butyl acetate + methanol, ethanol, 1-propanol, or 1-butanol. These systems have been studied isothermally and isobarically by different authors.…”

Section: Introductionmentioning

confidence: 92%

Measurement and Modelization of VLE for Butyl Acetate with Methanol, Ethanol, 1-Propanol, and 1-Butanol. Experimental Data at 0.15 MPa

et al. 2018

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Vapor–liquid equilibrium at 0.15 MPa for binary mixtures of butyl acetate with methanol, ethanol, 1-propanol, and 1-butanol has been measured. The thermodynamic consistency was verified with the Redlich–Kister test, the Herington test, the direct Van Ness test, and the point-to-point test. Azeotropic data was found for the butyl acetate + 1-butanol binary system at 0.15 MPa. Modeling of binary systems was obtained by employing the group contribution models (ASOG and different versions of UNIFAC) and the perturbed chain-statistical associating fluid theory equation of state.

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“…The proposed computer program of Fredenslund et al, (1977) was applied using physical properties from the literature (Fredenslund et al, 1977;Riddick et al, 1986;Yaws, 2003) and the correlations of the vapor pressures from a previous paper (Susial et al, 2010).…”

Section: Results and Treatmentmentioning

confidence: 99%

Vapor-liquid equilibrium measurements for the binary system methyl acetate+ethanol at 0.3 and 0.7 MPa

Badajoz

Rios-Santana

Sosa-Rosario

2011

Braz. J. Chem. Eng.

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-This paper reports experimental data of the isobaric vapor-liquid equilibria (VLE) for the mixture methyl acetate + ethanol at 0.3 and 0.7 MPa, determined using a copper still ebulliometer. The activity coefficients obtained from the experimental data were correlated by using different thermodynamic mathematical models. All the binary systems show a positive consistency when subjected to the point-to-point test of Van Ness. The prediction of VLE data obtained with the UNIFAC and ASOG methods has been verified with experimental data.

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Vapour-Liquid Equilibrium with a New Ebulliometer: Ester + Alcohol System at 0.5 MPa

Cited by 17 publications

References 19 publications

High-Pressure Phase Equilibria in an Ethanol/Water Binary System: Experimental Data and Modeling

High-Pressure Phase Equilibria in an Ethanol/Water Binary System: Experimental Data and Modeling

Measurement and Modelization of VLE for Butyl Acetate with Methanol, Ethanol, 1-Propanol, and 1-Butanol. Experimental Data at 0.15 MPa

Vapor-liquid equilibrium measurements for the binary system methyl acetate+ethanol at 0.3 and 0.7 MPa

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