Solubility of carbon dioxide and hydrogen sulfide in aqueous n-methyldiethanolamine solutions / P. J. G. Huttenhuis in Industrial & engineering chemistry research, Vol. 48 N° 8 (Avril 2009)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 48 N° 8 (Avril 2009) . - pp. 4051–4059 Titre : Solubility of carbon dioxide and hydrogen sulfide in aqueous n-methyldiethanolamine solutions Type de document : texte imprimé Auteurs : P. J. G. Huttenhuis, Auteur ; N. J. Agrawal, Auteur ; G. F. Versteeg, Auteur Année de publication : 2009 Article en page(s) : pp. 4051–4059 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : H2S CO2 Aqueous N-methyldiethanol amine solutions Methane pressures Electrolyte equation of state Résumé : In this work, 72 new experimental solubility data points for H2S and CO2 mixtures in aqueous N-methyldiethanol amine (MDEA) solutions at different methane partial pressures (up to 69 bara) are presented. They are correlated using an electrolyte equation of state (E-EOS) thermodynamic model. This model has already been used to estimate the CO2 solubility in aqueous MDEA (Huttenhuis et al. Fluid Phase Equilib. 2008, 264, 99−112) and the H2S solubility in aqueous MDEA (Huttenhuis et al. Int. J. Oil, Gas Coal Technol. 2008, 1, 399−424). Here, the model is further extended to predict the behavior of CO2 and H2S when they are present simultaneously in aqueous MDEA. The application of an equation of state is a new development for this type of system, i.e., of acid-gas−amine systems. The molecular interactions are described by Schwarzentruber et al.’s modification of the Redlich−Kwong−Soave equation of state, with terms added to account for ionic interactions in the liquid phase. The model is used to describe acid-gas solubility data for the CO2−H2S−MDEA−H2O system reported in the open literature and experimental data reported here for the CO2−H2S−MDEA−H2O−CH4 system. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801336j [article] Solubility of carbon dioxide and hydrogen sulfide in aqueous n-methyldiethanolamine solutions [texte imprimé] / P. J. G. Huttenhuis, Auteur ; N. J. Agrawal, Auteur ; G. F. Versteeg, Auteur . - 2009 . - pp. 4051–4059. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 8 (Avril 2009) . - pp. 4051–4059 Mots-clés : H2S CO2 Aqueous N-methyldiethanol amine solutions Methane pressures Electrolyte equation of state Résumé : In this work, 72 new experimental solubility data points for H2S and CO2 mixtures in aqueous N-methyldiethanol amine (MDEA) solutions at different methane partial pressures (up to 69 bara) are presented. They are correlated using an electrolyte equation of state (E-EOS) thermodynamic model. This model has already been used to estimate the CO2 solubility in aqueous MDEA (Huttenhuis et al. Fluid Phase Equilib. 2008, 264, 99−112) and the H2S solubility in aqueous MDEA (Huttenhuis et al. Int. J. Oil, Gas Coal Technol. 2008, 1, 399−424). Here, the model is further extended to predict the behavior of CO2 and H2S when they are present simultaneously in aqueous MDEA. The application of an equation of state is a new development for this type of system, i.e., of acid-gas−amine systems. The molecular interactions are described by Schwarzentruber et al.’s modification of the Redlich−Kwong−Soave equation of state, with terms added to account for ionic interactions in the liquid phase. The model is used to describe acid-gas solubility data for the CO2−H2S−MDEA−H2O system reported in the open literature and experimental data reported here for the CO2−H2S−MDEA−H2O−CH4 system. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801336j

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