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Predicting vapor pressure of heavy hydrocarbons from molar refraction and Its applications to petroleum mixtures / M. R. Riazi in Industrial & engineering chemistry research, Vol. 49 N° 15 (Août 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 15 (Août 2010) . - pp 7104–7112 Titre : Predicting vapor pressure of heavy hydrocarbons from molar refraction and Its applications to petroleum mixtures Type de document : texte imprimé Auteurs : M. R. Riazi, Auteur ; Y. S. AlQaheem, Auteur Année de publication : 2010 Article en page(s) : pp 7104–7112 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Vapor  pressure  Hydrocarbons  Petroleum  mixtures. Résumé : In this paper a generalized relation based on the corresponding states approach and use of molar refraction is proposed for the estimation of vapor pressure of pure hydrocarbons from C1 to C100. The hydrocarbons are divided into three groups of n-alkanes, n-alkylcyclohexanes, and n-alkylbenzenes from the paraffinic, naphthenic, and aromatic families. The method is also extended to undefined petroleum mixtures using bulk measurable properties, and unified methods are proposed for the calculation of input parameters from measurable properties of the mixture. The AAD for the proposed method for pure hydrocarbons (C1−C100) and for temperature range of Tr = 0.4 to the critical point (ca. 91−968 K) for 1300 data points is 1.85% while from other available methods in the literature this error is about 24%. When evaluated against petroleum fractions the proposed method produces data slightly more accurate than the existing methods recommended specifically for petroleum mixtures. Application of the proposed method to vapor pressure of crude oil is also demonstrated. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie100861c [article] Predicting vapor pressure of heavy hydrocarbons from molar refraction and Its applications to petroleum mixtures [texte imprimé] / M. R. Riazi, Auteur ; Y. S. AlQaheem, Auteur . - 2010 . - pp 7104–7112. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 15 (Août 2010) . - pp 7104–7112 Mots-clés : Vapor  pressure  Hydrocarbons  Petroleum  mixtures. Résumé : In this paper a generalized relation based on the corresponding states approach and use of molar refraction is proposed for the estimation of vapor pressure of pure hydrocarbons from C1 to C100. The hydrocarbons are divided into three groups of n-alkanes, n-alkylcyclohexanes, and n-alkylbenzenes from the paraffinic, naphthenic, and aromatic families. The method is also extended to undefined petroleum mixtures using bulk measurable properties, and unified methods are proposed for the calculation of input parameters from measurable properties of the mixture. The AAD for the proposed method for pure hydrocarbons (C1−C100) and for temperature range of Tr = 0.4 to the critical point (ca. 91−968 K) for 1300 data points is 1.85% while from other available methods in the literature this error is about 24%. When evaluated against petroleum fractions the proposed method produces data slightly more accurate than the existing methods recommended specifically for petroleum mixtures. Application of the proposed method to vapor pressure of crude oil is also demonstrated. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie100861c