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Modeling of the mixed solvent electrolyte system CO2−Na2CO3−NaHCO3−monoethylene glycol−water / Philip L. Fosbøl in Industrial & engineering chemistry research, Vol. 48 N° 9 (Mai 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N° 9 (Mai 2009) . - pp. 4565–4578 Titre : Modeling of the mixed solvent electrolyte system CO2−Na2CO3−NaHCO3−monoethylene glycol−water Type de document : texte imprimé Auteurs : Philip L. Fosbøl, Auteur ; Kaj Thomsen, Auteur ; Erling H. Stenby, Auteur Année de publication : 2009 Article en page(s) : pp. 4565–4578 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Electrolyte  system  Solid−liquid  equilibrium  Vapor−liquid  equilibrium  CO2−NaHCO3−Na2CO3−monoethylene  glycol−H2O  electrolyte  system Résumé : The extended UNIQUAC electrolyte activity coefficient model has been correlated to 751 experimental solid−liquid equilibrium (SLE), vapor−liquid equilibrium (VLE), and excess enthalpy data for the mixed solvent CO2−NaHCO3−Na2CO3−monoethylene glycol(MEG)−H2O electrolyte system. The model was validated by predicting the excess heat capacity. The model is consistent, and one set of binary interaction parameters are used for calculating all the properties between −50 and 90 °C. The model is compared to experimental data of infinite dilution activity coefficient measurements of MEG and may be used for calculating activities, solubility, salt hydrate properties, pH, and CO2 solubility in the NaHCO3−Na2CO3−MEG−H2O system. A simple density model of NaHCO3−Na2CO3−NaCl−MEG−water is given. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801168e [article] Modeling of the mixed solvent electrolyte system CO2−Na2CO3−NaHCO3−monoethylene glycol−water [texte imprimé] / Philip L. Fosbøl, Auteur ; Kaj Thomsen, Auteur ; Erling H. Stenby, Auteur . - 2009 . - pp. 4565–4578. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 9 (Mai 2009) . - pp. 4565–4578 Mots-clés : Electrolyte  system  Solid−liquid  equilibrium  Vapor−liquid  equilibrium  CO2−NaHCO3−Na2CO3−monoethylene  glycol−H2O  electrolyte  system Résumé : The extended UNIQUAC electrolyte activity coefficient model has been correlated to 751 experimental solid−liquid equilibrium (SLE), vapor−liquid equilibrium (VLE), and excess enthalpy data for the mixed solvent CO2−NaHCO3−Na2CO3−monoethylene glycol(MEG)−H2O electrolyte system. The model was validated by predicting the excess heat capacity. The model is consistent, and one set of binary interaction parameters are used for calculating all the properties between −50 and 90 °C. The model is compared to experimental data of infinite dilution activity coefficient measurements of MEG and may be used for calculating activities, solubility, salt hydrate properties, pH, and CO2 solubility in the NaHCO3−Na2CO3−MEG−H2O system. A simple density model of NaHCO3−Na2CO3−NaCl−MEG−water is given. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801168e

Solubility measurements in the mixed solvent electrolyte system Na2CO3-NaHCO3-monoethylene glycol-water / Philip L. Fosbøl in Industrial & engineering chemistry research, Vol. 48 N°4 (Février 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N°4 (Février 2009) . - p. 2218–2228 Titre : Solubility measurements in the mixed solvent electrolyte system Na2CO3-NaHCO3-monoethylene glycol-water Type de document : texte imprimé Auteurs : Philip L. Fosbøl, Auteur ; Kaj Thomsen, Auteur ; Erling H. Stenby, Auteur Année de publication : 2009 Article en page(s) : p. 2218–2228 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Electrolyte  system  Atmospheric  pressure  Schreinemakers  method Résumé : 212 new data points for solubility and density have been measured in the mixed solvent electrolytic CO2−NaHCO3−Na2CO3−monoethylene glycol (MEG)−water system. Measurements were conducted at 2−60 °C at atmospheric pressure. An overview of methods available for determining the carbon dioxide and sodium content is given and the reverse Schreinemakers method was chosen. The method gives the amounts of all the species in the liquid. The solutions have a tendency to form metastable mixtures from which sodium carbonate salt hydrates may precipitate. Thirty metastable data points are reported. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie8011648 [article] Solubility measurements in the mixed solvent electrolyte system Na2CO3-NaHCO3-monoethylene glycol-water [texte imprimé] / Philip L. Fosbøl, Auteur ; Kaj Thomsen, Auteur ; Erling H. Stenby, Auteur . - 2009 . - p. 2218–2228. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N°4 (Février 2009) . - p. 2218–2228 Mots-clés : Electrolyte  system  Atmospheric  pressure  Schreinemakers  method Résumé : 212 new data points for solubility and density have been measured in the mixed solvent electrolytic CO2−NaHCO3−Na2CO3−monoethylene glycol (MEG)−water system. Measurements were conducted at 2−60 °C at atmospheric pressure. An overview of methods available for determining the carbon dioxide and sodium content is given and the reverse Schreinemakers method was chosen. The method gives the amounts of all the species in the liquid. The solutions have a tendency to form metastable mixtures from which sodium carbonate salt hydrates may precipitate. Thirty metastable data points are reported. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie8011648