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Thermodynamic model for the prediction of equilibrium conditions of clathrate hydrates of methane + water-soluble or -insoluble hydrate former / Mohammad Illbeigi in Industrial & engineering chemistry research, Vol. 50 N° 15 (Août 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 15 (Août 2011) . - pp. 9437–9450 Titre : Thermodynamic model for the prediction of equilibrium conditions of clathrate hydrates of methane + water-soluble or -insoluble hydrate former Type de document : texte imprimé Auteurs : Mohammad Illbeigi, Auteur ; Alireza Fazlali, Auteur ; Amir H. Mohammadi, Auteur Année de publication : 2011 Article en page(s) : pp. 9437–9450 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Thermodynamic  Hydrates  of  methane Résumé : In this communication, equilibrium conditions of clathrate hydrates of cyclopentane, cylcohexane, acetone, or 1,4-dioxane + methane, which form structure II, and 1,1-dimethylcyclohexane, 2,2-dimethylpentane, methylcyclohexane, or cis-1,2-dimethylcyclohexane + methane, which form structure H, are modeled. The thermodynamic model is based on the van der Waals–Platteeuw solid solution theory combined with an equation of state and activity model. The Peng–Robinson (PR) and Soave–Redlich–Kwong (SRK) equations of state with random mixing rules are used to model the gas phase, while the UNIFAC method is used to model the liquid phase(s). It is shown that the use of the PR equation of state leads to better predictions of hydrate equilibrium conditions of the aforementioned water-insoluble heavy hydrocarbons, while the use of the SRK equation of state causes better predictions of hydrate equilibrium conditions of the latter water-soluble hydrate formers. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie200442h [article] Thermodynamic model for the prediction of equilibrium conditions of clathrate hydrates of methane + water-soluble or -insoluble hydrate former [texte imprimé] / Mohammad Illbeigi, Auteur ; Alireza Fazlali, Auteur ; Amir H. Mohammadi, Auteur . - 2011 . - pp. 9437–9450. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 15 (Août 2011) . - pp. 9437–9450 Mots-clés : Thermodynamic  Hydrates  of  methane Résumé : In this communication, equilibrium conditions of clathrate hydrates of cyclopentane, cylcohexane, acetone, or 1,4-dioxane + methane, which form structure II, and 1,1-dimethylcyclohexane, 2,2-dimethylpentane, methylcyclohexane, or cis-1,2-dimethylcyclohexane + methane, which form structure H, are modeled. The thermodynamic model is based on the van der Waals–Platteeuw solid solution theory combined with an equation of state and activity model. The Peng–Robinson (PR) and Soave–Redlich–Kwong (SRK) equations of state with random mixing rules are used to model the gas phase, while the UNIFAC method is used to model the liquid phase(s). It is shown that the use of the PR equation of state leads to better predictions of hydrate equilibrium conditions of the aforementioned water-insoluble heavy hydrocarbons, while the use of the SRK equation of state causes better predictions of hydrate equilibrium conditions of the latter water-soluble hydrate formers. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie200442h