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Liquid − liquid equilibrium data in ionic liquid + 4 - methyldibenzothiophene + n - dodecane systems / Leonardo Hadlich de Oliveira in Industrial & engineering chemistry research, Vol. 49 N° 19 (Octobre 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 19 (Octobre 2010) . - pp. 9462–9468 Titre : Liquid − liquid equilibrium data in ionic liquid + 4 - methyldibenzothiophene + n - dodecane systems Type de document : texte imprimé Auteurs : Leonardo Hadlich de Oliveira, Auteur ; Martin Aznar, Auteur Année de publication : 2010 Article en page(s) : pp. 9462–9468 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Liquid  equilibrium Résumé : In this work, liquid−liquid equilibrium data for 1-ethyl-3-methylimidazolium diethylphosphate ([emim][DEtPO4]) or 1-ethyl-3-methylimidazolium ethylsulfate ([emim][EtSO4]) + 4-methyl-dibenzothiophene (4-MDBT) + n-dodecane systems at 25 and 40 °C and atmospheric pressure (≈95 kPa) were determined by refractometry. 4-MDBT is a DBT derivative and it is one of the most difficult diesel sulfur pollutants to remove by the conventional process of hydrodesulfurization. The liquid−liquid equilibrium data were used to study the 4-MDBT extraction from n-dodecane as model diesel oil. 4-MDBT distribution coefficients, solvent selectivities, and extraction data also indicate that [emim][DEtPO4] is a better solvent for extractive desulfurization of n-dodecane than [emim][EtSO4]. For a solvent/n-dodecane mass ratio of 0.6, the sulfur content in n-dodecane decreases 17−24% and 5−15% for [emim][DEtPO4] and [emim][EtSO4], respectively. The quality of the data was ascertained by the Hand and Othmer−Tobias correlations, which presented R2 > 0.97 for all systems. The NRTL model was used to correlate the data and showed root-mean-square deviations of <0.15%. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie1009876 [article] Liquid − liquid equilibrium data in ionic liquid + 4 - methyldibenzothiophene + n - dodecane systems [texte imprimé] / Leonardo Hadlich de Oliveira, Auteur ; Martin Aznar, Auteur . - 2010 . - pp. 9462–9468. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 19 (Octobre 2010) . - pp. 9462–9468 Mots-clés : Liquid  equilibrium Résumé : In this work, liquid−liquid equilibrium data for 1-ethyl-3-methylimidazolium diethylphosphate ([emim][DEtPO4]) or 1-ethyl-3-methylimidazolium ethylsulfate ([emim][EtSO4]) + 4-methyl-dibenzothiophene (4-MDBT) + n-dodecane systems at 25 and 40 °C and atmospheric pressure (≈95 kPa) were determined by refractometry. 4-MDBT is a DBT derivative and it is one of the most difficult diesel sulfur pollutants to remove by the conventional process of hydrodesulfurization. The liquid−liquid equilibrium data were used to study the 4-MDBT extraction from n-dodecane as model diesel oil. 4-MDBT distribution coefficients, solvent selectivities, and extraction data also indicate that [emim][DEtPO4] is a better solvent for extractive desulfurization of n-dodecane than [emim][EtSO4]. For a solvent/n-dodecane mass ratio of 0.6, the sulfur content in n-dodecane decreases 17−24% and 5−15% for [emim][DEtPO4] and [emim][EtSO4], respectively. The quality of the data was ascertained by the Hand and Othmer−Tobias correlations, which presented R2 > 0.97 for all systems. The NRTL model was used to correlate the data and showed root-mean-square deviations of <0.15%. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie1009876