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Solid acid catalyst for biodiesel production from waste used cooking oils / Cholada Komintarachat in Industrial & engineering chemistry research, Vol. 48 N° 20 (Octobre 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N° 20 (Octobre 2009) . - pp. 9350–9353 Titre : Solid acid catalyst for biodiesel production from waste used cooking oils Type de document : texte imprimé Auteurs : Cholada Komintarachat, Auteur ; Sathaporn Chuepeng, Auteur Année de publication : 2010 Article en page(s) : pp. 9350–9353 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Waste  Methanol  Cooking  oils Résumé : This paper presents a study of the methanol based transesterification of waste used cooking oil (WCO, 15% free fatty acid content) with the synthesized solid acid catalyst at different temperatures and reaction times. The optimized conditions for fatty acid methyl ester (FAME) yield were investigated using methanol/WCO weight ratios of 0.15−0.35 and catalyst/WCO ratios of 0.25−1.25%. The results show that the methanol/WCO ratio of 0.3 and the catalyst/WCO ratio of 1.0% give the highest yield of 97.5% FAME at 383 K in 2 h. In addition, the capacity of porous supports for WOx synthesized catalysts, based on FAME yield was in the following order: Al2O3 > SiO2 > SnO2 > ZnO. The WOx/Al2O3 catalyst was found to be readily reusable and exhibited consistency in activity upon reuse for three times without loss of selectivity. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901175d [article] Solid acid catalyst for biodiesel production from waste used cooking oils [texte imprimé] / Cholada Komintarachat, Auteur ; Sathaporn Chuepeng, Auteur . - 2010 . - pp. 9350–9353. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 20 (Octobre 2009) . - pp. 9350–9353 Mots-clés : Waste  Methanol  Cooking  oils Résumé : This paper presents a study of the methanol based transesterification of waste used cooking oil (WCO, 15% free fatty acid content) with the synthesized solid acid catalyst at different temperatures and reaction times. The optimized conditions for fatty acid methyl ester (FAME) yield were investigated using methanol/WCO weight ratios of 0.15−0.35 and catalyst/WCO ratios of 0.25−1.25%. The results show that the methanol/WCO ratio of 0.3 and the catalyst/WCO ratio of 1.0% give the highest yield of 97.5% FAME at 383 K in 2 h. In addition, the capacity of porous supports for WOx synthesized catalysts, based on FAME yield was in the following order: Al2O3 > SiO2 > SnO2 > ZnO. The WOx/Al2O3 catalyst was found to be readily reusable and exhibited consistency in activity upon reuse for three times without loss of selectivity. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901175d