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Effects of monoethylene glycol on carbon dioxide partitioning in gas/monoethylene glycol/water/salt mixed systems / Amy T. Kan in Industrial & engineering chemistry research, Vol. 49 N° 12 (Juin 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 12 (Juin 2010) . - pp. 5884–5890 Titre : Effects of monoethylene glycol on carbon dioxide partitioning in gas/monoethylene glycol/water/salt mixed systems Type de document : texte imprimé Auteurs : Amy T. Kan, Auteur ; Haiping Lu, Auteur ; Mason B. Tomson, Auteur Année de publication : 2010 Article en page(s) : pp. 5884–5890 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Carbon  dioxide  partitioning  Gas/liquid  equilibrium  NaCl−H2O−monoethylene  glycol  (MEG)  mixed  solvent Résumé : This paper extended the experimental results of carbon dioxide partitioning in gas/liquid equilibrium with a NaCl−H2O−monoethylene glycol (MEG) mixed solvent. The experiments were conducted systematically at 3−70 °C, 0−6.0 m NaCl, and 0−99 wt % MEG concentrations. CO2 partitioning to the NaCl−H2O−MEG solution is complicated due to nonideal behavior in the solvent. A self-consistent activity model is proposed to describe the effect of monoethylene glycol (MEG) on CO2 partitioning in gas/MEG/water/salt solutions using pure H2O as the reference state. Pitzer theory was used to calculate the effect of salt, and a semiempirical equation was applied to correlate the effects of MEG at different temperatures and ionic strengths. The equation is applicable to CO2 partitioning at 0−6 mol of NaCl and 0−97% MEG mixed solution at 0−90 °C. This model can be incorporated with Pitzer type activity coefficient models to predict the solubility of carbon dioxide in the presence of MEG and salt solutions. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901274v [article] Effects of monoethylene glycol on carbon dioxide partitioning in gas/monoethylene glycol/water/salt mixed systems [texte imprimé] / Amy T. Kan, Auteur ; Haiping Lu, Auteur ; Mason B. Tomson, Auteur . - 2010 . - pp. 5884–5890. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 12 (Juin 2010) . - pp. 5884–5890 Mots-clés : Carbon  dioxide  partitioning  Gas/liquid  equilibrium  NaCl−H2O−monoethylene  glycol  (MEG)  mixed  solvent Résumé : This paper extended the experimental results of carbon dioxide partitioning in gas/liquid equilibrium with a NaCl−H2O−monoethylene glycol (MEG) mixed solvent. The experiments were conducted systematically at 3−70 °C, 0−6.0 m NaCl, and 0−99 wt % MEG concentrations. CO2 partitioning to the NaCl−H2O−MEG solution is complicated due to nonideal behavior in the solvent. A self-consistent activity model is proposed to describe the effect of monoethylene glycol (MEG) on CO2 partitioning in gas/MEG/water/salt solutions using pure H2O as the reference state. Pitzer theory was used to calculate the effect of salt, and a semiempirical equation was applied to correlate the effects of MEG at different temperatures and ionic strengths. The equation is applicable to CO2 partitioning at 0−6 mol of NaCl and 0−97% MEG mixed solution at 0−90 °C. This model can be incorporated with Pitzer type activity coefficient models to predict the solubility of carbon dioxide in the presence of MEG and salt solutions. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901274v