Vapor-liquid equilibria in nonpolar/weakly polar systems with different types of mixing rules

Voros, NG; Tassios, DP

dc.contributor.author	Voros, NG	en
dc.contributor.author	Tassios, DP	en
dc.date.accessioned	2014-03-01T01:09:36Z
dc.date.available	2014-03-01T01:09:36Z
dc.date.issued	1993	en
dc.identifier.issn	0378-3812	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/11106
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0027693020&partnerID=40&md5=9e5e6b6b60b373d5dc1e65a751fb8d67	en
dc.subject	equation of state	en
dc.subject	mixing rules	en
dc.subject	mixtures.	en
dc.subject	theory	en
dc.subject	vapor-liquid equilibria	en
dc.subject.classification	Thermodynamics	en
dc.subject.classification	Chemistry, Physical	en
dc.subject.classification	Engineering, Chemical	en
dc.subject.other	Equations of state	en
dc.subject.other	Liquids	en
dc.subject.other	Mathematical models	en
dc.subject.other	Mixing	en
dc.subject.other	Mixtures	en
dc.subject.other	Parameter estimation	en
dc.subject.other	Physical chemistry	en
dc.subject.other	Vapors	en
dc.subject.other	Mixing rules	en
dc.subject.other	Nonpolar/weakly polar systems	en
dc.subject.other	Vapor liquid equilibria	en
dc.subject.other	Phase equilibria	en
dc.subject.other	Analysis-Mathematical	en
dc.subject.other	Gas/Liquid Mixtures	en
dc.subject.other	Mixing	en
dc.title	Vapor-liquid equilibria in nonpolar/weakly polar systems with different types of mixing rules	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	1993	en
heal.abstract	A comprehensive comparison of six mixing rules: the one- and two-parameter conventional ones (1PCMR and 2PCMR); the pressure- and density-dependent ones (PDMR and DDMR); and two based on GE models (MHV2MR and the Sandler-Wong, SWMR), used with cubic equations of state, is presented using an extensive database of nonpolar/weakly polar binary systems. Parameter values are determined by fitting the P-T-x data and are then used in the prediction of vapor phase mole fractions (y), and saturated liquid (ρ{variant}L) and vapor (ρ{variant}V) densities. Best result are obtained with the 2PCMR, PDMR, MHV2MR and SWMR with typical errors of 2% in P, 3% in ρ{variant}L and 7% in ρ{variant}V ; and deviations in y of 0.012, except for the SWMR which gives poorer predictions for systems where one component is highly supercritical. Surprisingly, the DDMR does not perform as well as it might be expected. All models, however, finally give poorer results in the near-critical region. © 1993.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Fluid Phase Equilibria	en
dc.identifier.isi	ISI:A1993MJ08300001	en
dc.identifier.volume	91	en
dc.identifier.issue	1	en
dc.identifier.spage	1	en
dc.identifier.epage	29	en