Measurement and thermodynamic modeling of solid-liquid-gas equilibrium of some organic compounds in the presence of CO2

Bertakis, E; Lemonis, I; Katsoufis, S; Voutsas, E; Dohrn, R; Magoulas, K; Tassios, D

dc.contributor.author	Bertakis, E	en
dc.contributor.author	Lemonis, I	en
dc.contributor.author	Katsoufis, S	en
dc.contributor.author	Voutsas, E	en
dc.contributor.author	Dohrn, R	en
dc.contributor.author	Magoulas, K	en
dc.contributor.author	Tassios, D	en
dc.date.accessioned	2014-03-01T01:26:35Z
dc.date.available	2014-03-01T01:26:35Z
dc.date.issued	2007	en
dc.identifier.issn	0896-8446	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/18143
dc.subject	Carbon dioxide	en
dc.subject	Equation of state	en
dc.subject	First melting point	en
dc.subject	Modeling	en
dc.subject	Solid-liquid-gas	en
dc.subject	Universal-Mixing-Rule	en
dc.subject.classification	Chemistry, Physical	en
dc.subject.classification	Engineering, Chemical	en
dc.subject.other	Carbon dioxide	en
dc.subject.other	Carboxylic acids	en
dc.subject.other	Melting point	en
dc.subject.other	Thermodynamics	en
dc.subject.other	Vapor pressure	en
dc.subject.other	Equation of state	en
dc.subject.other	First melting point	en
dc.subject.other	Solid vapor pressure	en
dc.subject.other	Universal Mixing Rule	en
dc.subject.other	Organic compounds	en
dc.title	Measurement and thermodynamic modeling of solid-liquid-gas equilibrium of some organic compounds in the presence of CO2	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.supflu.2006.10.003	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.supflu.2006.10.003	en
heal.language	English	en
heal.publicationDate	2007	en
heal.abstract	Solid-liquid-gas (SLG) phase equilibrium measurements have been performed in a view cell apparatus, using the ""first melting point"" method. SLG data are presented for five binary mixtures of CO2 with naphthalene, phenanthrene, benzoic acid, palmitic acid and stearic acid. The experimental data are correlated with the cubic Peng-Robinson EoS coupled with the conventional van der Waals one fluid mixing rules. Two different approaches for the calculation of the solid phase fugacity are examined. In the first the solid vapor pressure is used as the reference solid fugacity and in the second the so-called subcooled liquid reference state is used. The comparison of the two approaches indicates that the latter gives much better results than the former. Finally, the recently developed Universal-Mixing-Rule Peng-Robinson-Unifac (UMR-PRU) model is applied for the prediction of the SLG equilbrium curves of the CO2/naphthalene and CO2/phenanthrene systems, yielding satisfactory results, especially when coupled with the subcooled liquid reference state approach. © 2006 Elsevier B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Journal of Supercritical Fluids	en
dc.identifier.doi	10.1016/j.supflu.2006.10.003	en
dc.identifier.isi	ISI:000246468600007	en
dc.identifier.volume	41	en
dc.identifier.issue	2	en
dc.identifier.spage	238	en
dc.identifier.epage	245	en