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Heteropolyanion - based ionic liquid for deep desulfurization of fuels in ionic liquids / Wangli Huang 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. 8998–9003 Titre : Heteropolyanion - based ionic liquid for deep desulfurization of fuels in ionic liquids Type de document : texte imprimé Auteurs : Wangli Huang, Auteur ; Wenshuai Zhu, Auteur ; Huaming Li, Auteur Année de publication : 2010 Article en page(s) : pp. 8998–9003 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Heteropolyanion  Ionic  liquid  Catalyst  Desulfurization Résumé : A heteropolyanion-based ionic liquid, [(3-sulfonic acid) propylpyridine]3PW12O40·2H2O, [PSPy]3PW12O40·2H2O, abbreviated [PSPy]3PW, was synthesized and approved as an effective catalyst for desulfurization of fuels in [omim]PF6 by using aqueous H2O2 as oxidant. The catalysis was fulfilled with advantages of high activity, simplified workup, and flexible recyclability. The catalytic oxidation reactivity of sulfur-containing compounds was in the order dibenzothiophene (DBT) > 4,6-dimethyldibenzothiophene (4,6-DMDBT) > benzothiophene (BT). The effects of the amount of [PSPy]3PW, H2O2, and reaction time and temperature were investigated in detail. Under the optimal conditions, the removal of DBT achieved 99.4%. Especially, we found that the removal of 4,6-DMDBT could be up to 98.8%, and the system could be recycled at least 9 times without significant decrease in activity. The sulfur level of FCC gasoline could be reduced from 360 to 70 ppm in the extraction and catalytic oxidation system. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie100234d [article] Heteropolyanion - based ionic liquid for deep desulfurization of fuels in ionic liquids [texte imprimé] / Wangli Huang, Auteur ; Wenshuai Zhu, Auteur ; Huaming Li, Auteur . - 2010 . - pp. 8998–9003. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 19 (Octobre 2010) . - pp. 8998–9003 Mots-clés : Heteropolyanion  Ionic  liquid  Catalyst  Desulfurization Résumé : A heteropolyanion-based ionic liquid, [(3-sulfonic acid) propylpyridine]3PW12O40·2H2O, [PSPy]3PW12O40·2H2O, abbreviated [PSPy]3PW, was synthesized and approved as an effective catalyst for desulfurization of fuels in [omim]PF6 by using aqueous H2O2 as oxidant. The catalysis was fulfilled with advantages of high activity, simplified workup, and flexible recyclability. The catalytic oxidation reactivity of sulfur-containing compounds was in the order dibenzothiophene (DBT) > 4,6-dimethyldibenzothiophene (4,6-DMDBT) > benzothiophene (BT). The effects of the amount of [PSPy]3PW, H2O2, and reaction time and temperature were investigated in detail. Under the optimal conditions, the removal of DBT achieved 99.4%. Especially, we found that the removal of 4,6-DMDBT could be up to 98.8%, and the system could be recycled at least 9 times without significant decrease in activity. The sulfur level of FCC gasoline could be reduced from 360 to 70 ppm in the extraction and catalytic oxidation system. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie100234d