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dc.contributor.author
Rodriguez Reartes, Sabrina Belen
dc.contributor.author
Pisoni, Gerardo Oscar
dc.contributor.author
Zabaloy, Marcelo Santiago
dc.date.available
2017-09-29T18:06:07Z
dc.date.issued
2014-11-01
dc.identifier.citation
Rodriguez Reartes, Sabrina Belen; Pisoni, Gerardo Oscar; Zabaloy, Marcelo Santiago; Test for the detection of the retrograde melting phenomenon in computed solid-fluid equilibria of binary asymmetric systems; Elsevier Science; Journal of Supercritical Fluids; 97; 1-11-2014; 36-44
dc.identifier.issn
0896-8446
dc.identifier.uri
http://hdl.handle.net/11336/25452
dc.description.abstract
The phenomenon of retrograde melting at constanttemperature takes place when a solid phase is melted, or made to disappear, upon compression. Analogously, retrograde melting at constant pressure happens when a solid phase is melted, or made to disappear, upon cooling. In this work, we propose a test that makes possible to establish for a calculated, already converged, binary solid–fluid equilibrium (SFE) point (of temperature TSFE, pressure PSFE, and fluid phase composition z2), whether the behavior is regular or retrograde and, in case of retrograde behavior, whether the melting phenomenon is retrograde with respect to temperature, or to pressure, or to both. The test is based on evaluating, at TSFE and PSFE, the derivatives of the reduced tangent plane distance (tpd) with respect to temperature (dtpd∗/dT|P,z2 )SFE and pressure (dtpd∗/dP|T,z2 )SFE, for a tested phase of composition z2, and a trial phase consisting of the pure heavy component in solid state at TSFE and PSFE. The distinguishing feature of the present test is that the derivatives (dtpd∗/dT|P,z2 )SFE and (dtpd∗/dP|T,z2 )SFE are evaluated explicitly from the already converged SFE point, i.e., the present test does not require the computation of additional SFE points. Consequently, the test is fast and can be used for all points of a calculated SFE segment of an isopleth envelope. This leads to the eventual identification of points along the computed SFE segment where transitions from retrograde to regular behavior occur. We present results for a couple of highly asymmetric systems with the help of a model that uses an equation of state for describing the fluid phases, and a standard equation for describing the fugacity of the pure heavy component as a function of temperature and pressure.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Solid Fluid Equilibrium
dc.subject
Retrograde Melting
dc.subject
Binary
dc.subject
Equation of State
dc.subject.classification
Otras Ingeniería Química
dc.subject.classification
Ingeniería Química
dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
dc.title
Test for the detection of the retrograde melting phenomenon in computed solid-fluid equilibria of binary asymmetric systems
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-09-25T18:11:24Z
dc.journal.volume
97
dc.journal.pagination
36-44
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Rodriguez Reartes, Sabrina Belen. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina
dc.description.fil
Fil: Pisoni, Gerardo Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina
dc.description.fil
Fil: Zabaloy, Marcelo Santiago. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina
dc.journal.title
Journal of Supercritical Fluids
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.supflu.2014.10.022
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0896844614003581
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