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Catalytic oxidative desulfurization of gasoline using ionic liquid emulsion system / Jianhua Ge in Industrial & engineering chemistry research, Vol. 50 N° 24 (Décembre 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 24 (Décembre 2011) . - pp. 13686-13692 Titre : Catalytic oxidative desulfurization of gasoline using ionic liquid emulsion system Type de document : texte imprimé Auteurs : Jianhua Ge, Auteur ; Yuming Zhou, Auteur ; Yong Yang, Auteur Année de publication : 2012 Article en page(s) : pp. 13686-13692 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Emulsion  Ionic  liquid  Desulfurization  Oxidation  Catalytic  reaction Résumé : With the aim of deep desulfurization of the gasoline, an amphiphilic catalyst, which is composed of lacunary anion [PW11O39]7- and quaternary ammonium cation [C18H37(CH3)3]N+, assembled in hydrophobic ionic liquid emulsions, can oxidize the sulfur compounds present in oil into their corresponding sulfones under ambient reaction conditions. In this process, catalytic oxidation of sulfur-containing molecules in model oil was investigated in detail under different reaction conditions (including different desulfurization systems, H2O2/DBT molar ratio, temperature, and various sulfur compounds). Moreover; this ionic liquid emulsion system could be recycled five times with an unnoticeable decrease in catalytic activity, and, from the kinetics study, it can be shown that the catalytic oxidative reaction is a pseudofirst-order reaction and the half-life is 30.4 min. Furthermore, the mechanism of catalytic oxidation desulfurization was elaborated, and the total sulfur level of real gasoline can be decreased from 1236 to 65 ppm after catalytic oxidation using an ionic liquid emulsion system. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=25299830 [article] Catalytic oxidative desulfurization of gasoline using ionic liquid emulsion system [texte imprimé] / Jianhua Ge, Auteur ; Yuming Zhou, Auteur ; Yong Yang, Auteur . - 2012 . - pp. 13686-13692. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 24 (Décembre 2011) . - pp. 13686-13692 Mots-clés : Emulsion  Ionic  liquid  Desulfurization  Oxidation  Catalytic  reaction Résumé : With the aim of deep desulfurization of the gasoline, an amphiphilic catalyst, which is composed of lacunary anion [PW11O39]7- and quaternary ammonium cation [C18H37(CH3)3]N+, assembled in hydrophobic ionic liquid emulsions, can oxidize the sulfur compounds present in oil into their corresponding sulfones under ambient reaction conditions. In this process, catalytic oxidation of sulfur-containing molecules in model oil was investigated in detail under different reaction conditions (including different desulfurization systems, H2O2/DBT molar ratio, temperature, and various sulfur compounds). Moreover; this ionic liquid emulsion system could be recycled five times with an unnoticeable decrease in catalytic activity, and, from the kinetics study, it can be shown that the catalytic oxidative reaction is a pseudofirst-order reaction and the half-life is 30.4 min. Furthermore, the mechanism of catalytic oxidation desulfurization was elaborated, and the total sulfur level of real gasoline can be decreased from 1236 to 65 ppm after catalytic oxidation using an ionic liquid emulsion system. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=25299830