Heterogeneously-catalyzed glycerolysis of fatty acid methyl esters / Cristián A. Ferretti in Industrial & engineering chemistry research, Vol. 48 N° 23 (Décembre 2009)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 48 N° 23 (Décembre 2009) . - pp. 10387–10394 Titre : Heterogeneously-catalyzed glycerolysis of fatty acid methyl esters : reaction parameter optimization Type de document : texte imprimé Auteurs : Cristián A. Ferretti, Auteur ; Roberto N. Olcese, Auteur ; Carlos R. Apesteguía, Auteur Année de publication : 2010 Article en page(s) : pp. 10387–10394 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Heterogeneously-Catalyzed--Glycerolysis--Fatty Acid--Methyl--Esters--Reaction Parameter--Optimization Résumé : The synthesis of monoglycerides by glycerolysis of methyl oleate, an unsaturated fatty acid methyl ester, was studied on strongly basic high surface area MgO as an alternative to the current commercial technology that uses liquid base catalysts. Initially, the reaction conditions such as catalyst particle size and stirring rate required for operating the four-phase reactor under a kinetically controlled regime were determined. Then, the optimization of the reaction parameters for achieving high monoglyceride yields was performed. Results showed that glycerolysis of methyl oleate on MgO compares favorably with the corresponding homogeneously catalyzed process. In fact, when using high reaction temperatures (493−523 K), glycerol/methyl oleate molar ratios between 2 and 6, and catalyst/reactant ratios of about 30 g/mol, glycerolysis of methyl oleate on MgO yields up to 77% monoglycerides in 2 h, a much higher value than those usually obtained via the liquid-base-catalyzed homogeneous process (40−60%). ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie9004783 [article] Heterogeneously-catalyzed glycerolysis of fatty acid methyl esters : reaction parameter optimization [texte imprimé] / Cristián A. Ferretti, Auteur ; Roberto N. Olcese, Auteur ; Carlos R. Apesteguía, Auteur . - 2010 . - pp. 10387–10394. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 23 (Décembre 2009) . - pp. 10387–10394 Mots-clés : Heterogeneously-Catalyzed--Glycerolysis--Fatty Acid--Methyl--Esters--Reaction Parameter--Optimization Résumé : The synthesis of monoglycerides by glycerolysis of methyl oleate, an unsaturated fatty acid methyl ester, was studied on strongly basic high surface area MgO as an alternative to the current commercial technology that uses liquid base catalysts. Initially, the reaction conditions such as catalyst particle size and stirring rate required for operating the four-phase reactor under a kinetically controlled regime were determined. Then, the optimization of the reaction parameters for achieving high monoglyceride yields was performed. Results showed that glycerolysis of methyl oleate on MgO compares favorably with the corresponding homogeneously catalyzed process. In fact, when using high reaction temperatures (493−523 K), glycerol/methyl oleate molar ratios between 2 and 6, and catalyst/reactant ratios of about 30 g/mol, glycerolysis of methyl oleate on MgO yields up to 77% monoglycerides in 2 h, a much higher value than those usually obtained via the liquid-base-catalyzed homogeneous process (40−60%). ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie9004783

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire