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Biodiesel production by esterification of oleic acid over bronsted acidic ionic liquid supported onto Fe-incorporated SBA-15 / Lin Zhang in Industrial & engineering chemistry research, Vol. 51 N° 51 (Décembre 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 51 (Décembre 2012) . - pp. 16590–16596 Titre : Biodiesel production by esterification of oleic acid over bronsted acidic ionic liquid supported onto Fe-incorporated SBA-15 Type de document : texte imprimé Auteurs : Lin Zhang, Auteur ; Yadong Cui, Auteur ; Chunping Zhang, Auteur Année de publication : 2012 Article en page(s) : pp. 16590–16596 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Biodiesel  Ionic  liquid Résumé : The esterification of oleic acid with short-chain alcohols using Brønsted acidic ionic liquid supported onto Fe-incorporated SBA-15 (Fe-SBA-15) was studied to develop a green method for biodiesel production. This catalyst was prepared by immobilization of Brønsted acidic ionic liquid 1-(propyl-3-sulfonate)-3-(3-trimethoxysilylpropyl) imidazolium hydrogen sulfate ([SO3H-PIm-CPMS][HSO4]) onto Fe-SBA-15 (IL/Fe-SBA-15). The structure of the catalyst was characterized by XRD, N2 adsorption–desorption measurement, FT-IR and TEM. The results demonstrated that Fe was incorporated into the framework of SBA-15, bringing Lewis acidic site. After the ionic liquid was successfully immobilized onto the surface of Fe-SBA-15, the structure of the catalyst remained intact. This catalyst displayed relatively high catalytic activity in esterification of oleic acid with short-chain alcohols because of the synergistic effect of Lewis and Brønsted acidic sites. Under the optimum reaction conditions (reaction temperature 363 K, molar ratio of methanol to oleic acid 6: 1, catalyst amount 5 wt %, and reaction time 3 h), the conversion of oleic acid reached to 87.7% when methanol was used as reactant. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie302419y [article] Biodiesel production by esterification of oleic acid over bronsted acidic ionic liquid supported onto Fe-incorporated SBA-15 [texte imprimé] / Lin Zhang, Auteur ; Yadong Cui, Auteur ; Chunping Zhang, Auteur . - 2012 . - pp. 16590–16596. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 51 (Décembre 2012) . - pp. 16590–16596 Mots-clés : Biodiesel  Ionic  liquid Résumé : The esterification of oleic acid with short-chain alcohols using Brønsted acidic ionic liquid supported onto Fe-incorporated SBA-15 (Fe-SBA-15) was studied to develop a green method for biodiesel production. This catalyst was prepared by immobilization of Brønsted acidic ionic liquid 1-(propyl-3-sulfonate)-3-(3-trimethoxysilylpropyl) imidazolium hydrogen sulfate ([SO3H-PIm-CPMS][HSO4]) onto Fe-SBA-15 (IL/Fe-SBA-15). The structure of the catalyst was characterized by XRD, N2 adsorption–desorption measurement, FT-IR and TEM. The results demonstrated that Fe was incorporated into the framework of SBA-15, bringing Lewis acidic site. After the ionic liquid was successfully immobilized onto the surface of Fe-SBA-15, the structure of the catalyst remained intact. This catalyst displayed relatively high catalytic activity in esterification of oleic acid with short-chain alcohols because of the synergistic effect of Lewis and Brønsted acidic sites. Under the optimum reaction conditions (reaction temperature 363 K, molar ratio of methanol to oleic acid 6: 1, catalyst amount 5 wt %, and reaction time 3 h), the conversion of oleic acid reached to 87.7% when methanol was used as reactant. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie302419y