Critical constants and acentric factors for long-chain alkanes suitable for corresponding states applications. A critical review

Kontogeorgis, GM; Tassios, DP

dc.contributor.author	Kontogeorgis, GM	en
dc.contributor.author	Tassios, DP	en
dc.date.accessioned	2014-03-01T11:44:26Z
dc.date.available	2014-03-01T11:44:26Z
dc.date.issued	1997	en
dc.identifier.issn	0923-0467	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/36946
dc.subject	Acentric factors	en
dc.subject	Long-chain alkanes	en
dc.subject	n-alkanes	en
dc.subject	Vapor pressures	en
dc.subject.classification	Engineering, Chemical	en
dc.subject.other	Correlation methods	en
dc.subject.other	Equations of state of liquids	en
dc.subject.other	Estimation	en
dc.subject.other	Mathematical models	en
dc.subject.other	Thermodynamic properties	en
dc.subject.other	Vapor pressure	en
dc.subject.other	Acentric factors	en
dc.subject.other	Corresponding states methods	en
dc.subject.other	Lee Kesler equations	en
dc.subject.other	Paraffins	en
dc.title	Critical constants and acentric factors for long-chain alkanes suitable for corresponding states applications. A critical review	en
heal.type	other	en
heal.identifier.primary	10.1016/S1385-8947(96)03146-4	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S1385-8947(96)03146-4	en
heal.language	English	en
heal.publicationDate	1997	en
heal.abstract	Several methods for the estimation of the critical temperature T(c), the critical pressure P(c), and the acentric factor ω for long-chain n-alkanes are reviewed and evaluated for the prediction of vapor pressures using Corresponding States (CS) methods, like the Lee-Kesler equation and the cubic equations of state. Most reliable and recent literature methods proposed for the estimation of the acentric factor of heavy alkanes yield similar values and the emphasis is, thus, given to the determination of the best sets of T(c) and P(c). Various extrapolation schemes proposed for this purpose and several general group-contribution methods were investigated in this work. The correlations proposed by K. Magoulas and D. Tassios, Thermophysical properties of n-alkanes from C1 to C20 and their prediction for higher ones, Fluid Phase Equilibria, 56 (1990) 119-140; A.S. Teja, R.J. Lee, D.J. Rosenthal, M. Anselme, Correlation of the critical properties of alkanes and alkanols, Fluid Phase Equilibria, 56 (1990) 153-169; W. Hu, J. Lovland and P. Vonka, Generalized vapor pressure equations for n-alkanes, 1-alkenes, and 1-alkanols, Presented at the 11th Int. Congress of Chemical Engineering, Chemical Equipment Design and Automation CHISA '93, 29 August-3 September, 1993; and the recent group-contribution method by L. Constantinou and R. Gani, New Group Contribution Method for Estimating Properties of Pure Compounds, AIChE J., 40 (10) (1994) 1697-1710; provide the most promising results.Several methods for the estimation of the critical temperature Tc, the critical pressure Pc, and the acentric factor ω for long-chain n-alkanes are reviewed and evaluated for the prediction of vapor pressures using Corresponding States (CS) methods, like the Lee-Kesler equation and the cubic equations of state. Most reliable and recent literature methods proposed for the estimation of the acentric factor of heavy alkanes yield similar values and the emphasis is, thus, given to the determination of the best sets of Tc and Pc. Various extrapolation schemes proposed for this purpose and several general group-contribution methods were investigated in this work. The correlations proposed by K. Magoulas and D. Tassios, Thermophysical properties of n-alkanes from C1 to C20 and their prediction for higher ones, Fluid Phase Equilibria, 56 (1990) 119-140; A.S. Teja, R.J. Lee, D.J. Rosenthal, M. Anselme, Correlation of the critical properties of alkanes and alkanols, Fluid Phase Equilibria, 56 (1990) 153-169; W. Hu, J. Lovland and P. Vonka, Generalized vapor pressure equations for n-alkanes, 1-alkenes, and 1-alkanols, Presented at the 11th Int. Congress of Chemical Engineering, Chemical Equipment Design and Automation CHISA '93, 29 August-3 September, 1993; and the recent group-contribution method by L. Constantinou and R. Gani, New Group Contribution Method for Estimating Properties of Pure Compounds, AIChE J., 40 (10) (1994) 1697-1710; provide the most promising results.	en
heal.publisher	Elsevier Science S.A., Lausanne, Switzerland	en
heal.journalName	Chemical Engineering Journal	en
dc.identifier.doi	10.1016/S1385-8947(96)03146-4	en
dc.identifier.isi	ISI:A1997XA79600005	en
dc.identifier.volume	66	en
dc.identifier.issue	1	en
dc.identifier.spage	35	en
dc.identifier.epage	49	en