Experimental determination and theoretical modeling of the vapor-liquid equilibrium and surface tensions of hexane plus tetrahydro-2H-pyran

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dc.contributor.authorMejia, Andres
dc.contributor.authorSegura, Hugo
dc.contributor.authorCartes, Marcela
dc.contributor.authorRicardo Perez Correa, J.
dc.date.accessioned2024-01-10T12:38:51Z
dc.date.available2024-01-10T12:38:51Z
dc.date.issued2012
dc.description.abstractIsobaric vapor-liquid equilibrium (VLE) data have been measured for the binary system hexane + tetrahydro-2H-pyran at 50, 75, and 94 kPa and over the temperature range 321-358 K using a vapor-liquid equilibrium still with circulation of both phases. Atmospheric surface tension data have been also determined at 303.15 K using a maximum bubble pressure tensiometer. Experimental results show that the mixture is zeotropic and exhibits slight positive deviation from ideal behavior over the experimental range. Surface tensions, in turn, exhibit negative deviation from the linear behavior.
dc.description.abstractThe VLE data of the binary mixture satisfy the Fredenlund's consistency test and were well-correlated by the Wohl, nonrandom two-liquid (NRTL), Wilson, and universal quasichemical (UNIQUAC) equations. The dependence of surface tensions on mole fraction was satisfactorily smoothed using the Redlich-Kister equation.
dc.description.abstractThe experimental VLE and surface tension data were accurately predicted by applying the square gradient theory to the Peng-Robinson Stryjek-Vera equation of state (EoS), appropriately extended to mixtures with a modified Huron-Vidal mixing rule. This theoretical model was also applied to describe the surface activity of species along the interfacial region, from which it was concluded that hexane presents interfacial accumulation and, therefore, a positive relative Gibbs adsorption isotherm on THP. (C) 2011 Elsevier B.V. All rights reserved.
dc.description.funderFONDECYT, Santiago, Chile
dc.fechaingreso.objetodigital25-03-2024
dc.format.extent11 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.fluid.2011.12.007
dc.identifier.eissn1879-0224
dc.identifier.issn0378-3812
dc.identifier.urihttps://doi.org/10.1016/j.fluid.2011.12.007
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/77110
dc.identifier.wosidWOS:000301276600008
dc.information.autorucIngeniería;Perez J ;S/I;100130
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final65
dc.pagina.inicio55
dc.publisherELSEVIER
dc.revistaFLUID PHASE EQUILIBRIA
dc.rightsacceso restringido
dc.subjectVapor-liquid equilibrium
dc.subjectSurface tension
dc.subjectSquare gradient theory
dc.subjectMHV
dc.subjectPeng-Robison EoS
dc.subjectTHP
dc.subjectHexane
dc.subjectSEMI-EMPIRICAL THEORY
dc.subjectEQUATION-OF-STATE
dc.subjectCUBIC EQUATIONS
dc.subjectGRADIENT THEORY
dc.subjectBINARY-MIXTURES
dc.subjectINTERFACIAL PROPERTIES
dc.subjectEXCESS-ENTHALPIES
dc.subjectCYCLIC ETHERS
dc.subjectPREDICTION
dc.subjectTETRAHYDROFURAN
dc.subject.ods13 Climate Action
dc.subject.odspa13 Acción por el clima
dc.titleExperimental determination and theoretical modeling of the vapor-liquid equilibrium and surface tensions of hexane plus tetrahydro-2H-pyran
dc.typeartículo
dc.volumen316
sipa.codpersvinculados100130
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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