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VLL equilibria and critical end points calculation of nitrogen - containing LNG systems / Edgar Ramirez-Jiménez in Industrial & engineering chemistry research, Vol. 51 N° 27 (Juillet 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 27 (Juillet 2012) . - pp. 9409-9418 Titre : VLL equilibria and critical end points calculation of nitrogen - containing LNG systems : Application of SRK and PC - SAFT equations of state Type de document : texte imprimé Auteurs : Edgar Ramirez-Jiménez, Auteur ; Daimler N. Justo-Garcia, Auteur ; Fernando Garcia-Sanchez, Auteur Année de publication : 2012 Article en page(s) : pp. 9409-9418 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Thermodynamic  properties  Equations  of  state  LNG Résumé : Two different numerical techniques, applying either the SRK or the PC-SAFT equations of state, were used to predict the multiphase behavior exhibited by the ternary systems nitrogen + methane + ethane, nitrogen + methane + propane, and nitrogen + methane + n-butane. The predictions with both equations of state were compared against experimental data in terms of nitrogen mole fractions of the two liquid phases and it was demonstrated that the agreement is good. Furthermore, a procedure similar to that reported by Gregorowicz and de Loos, in conjunction with the SRK equation of state, was introduced. It was applied to predict the K (L1―L2=V) and LCST (L1=L2―V) critical end points at constant temperature for the systems studied, and demonstrated a reliable and robust performance with good convergence characteristics. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26132278 [article] VLL equilibria and critical end points calculation of nitrogen - containing LNG systems : Application of SRK and PC - SAFT equations of state [texte imprimé] / Edgar Ramirez-Jiménez, Auteur ; Daimler N. Justo-Garcia, Auteur ; Fernando Garcia-Sanchez, Auteur . - 2012 . - pp. 9409-9418. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 27 (Juillet 2012) . - pp. 9409-9418 Mots-clés : Thermodynamic  properties  Equations  of  state  LNG Résumé : Two different numerical techniques, applying either the SRK or the PC-SAFT equations of state, were used to predict the multiphase behavior exhibited by the ternary systems nitrogen + methane + ethane, nitrogen + methane + propane, and nitrogen + methane + n-butane. The predictions with both equations of state were compared against experimental data in terms of nitrogen mole fractions of the two liquid phases and it was demonstrated that the agreement is good. Furthermore, a procedure similar to that reported by Gregorowicz and de Loos, in conjunction with the SRK equation of state, was introduced. It was applied to predict the K (L1―L2=V) and LCST (L1=L2―V) critical end points at constant temperature for the systems studied, and demonstrated a reliable and robust performance with good convergence characteristics. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26132278