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Process engineering study of the homogenously catalyzed biodiesel synthesis in a bubble column reactor / Thomas Mollenhauer in Industrial & engineering chemistry research, Vol. 49 N° 24 (Décembre 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 24 (Décembre 2010) . - pp. 12390–12398 Titre : Process engineering study of the homogenously catalyzed biodiesel synthesis in a bubble column reactor Type de document : texte imprimé Auteurs : Thomas Mollenhauer, Auteur ; Walther Klemm, Auteur ; Manfred Lauterbach, Auteur Année de publication : 2011 Article en page(s) : pp. 12390–12398 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Bubble  column  reactor  Catalyzed  biodiesel Résumé : A bubble column reactor has been developed for the production of fatty acid methyl ester (FAME) from refined oil and oil with high free fatty acid (FFA) content. The aim of our investigations was to examine the basic use of a discontinuously operated bubble reactor for homogenously catalyzed synthesis of FAME in comparison to use of a discontinuously operated stirred reactor. Stirring of the liquid phase in the bubble reactor was realized by the ascending force of bubbles which were introduced over a distribution system from the bottom of the reactor. Either the aerating nitrogen gas (at 60 °C) or vaporized methanol (at 80 °C) were used in the bubble reactor. The ascending bubbles should enable the mass transfer for transesterification and esterification of the feedstock. Further, the catalysts p-toluene sulfonic acid (p-TSS; 3 wt %) or sodium methoxide (1 wt %) were applied to an initial load of 2 L in a molar ratio of 2:1 methanol-to-feedstock related to the fatty acids. Additionally, important process engineering parameters and kinetic information were collected experimentally as well as theoretically. The results show that a bubble reactor is a serious alternative reaction technique for FAME production simplifying the devices and enabling higher throughputs per reaction unit. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie101430w [article] Process engineering study of the homogenously catalyzed biodiesel synthesis in a bubble column reactor [texte imprimé] / Thomas Mollenhauer, Auteur ; Walther Klemm, Auteur ; Manfred Lauterbach, Auteur . - 2011 . - pp. 12390–12398. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 24 (Décembre 2010) . - pp. 12390–12398 Mots-clés : Bubble  column  reactor  Catalyzed  biodiesel Résumé : A bubble column reactor has been developed for the production of fatty acid methyl ester (FAME) from refined oil and oil with high free fatty acid (FFA) content. The aim of our investigations was to examine the basic use of a discontinuously operated bubble reactor for homogenously catalyzed synthesis of FAME in comparison to use of a discontinuously operated stirred reactor. Stirring of the liquid phase in the bubble reactor was realized by the ascending force of bubbles which were introduced over a distribution system from the bottom of the reactor. Either the aerating nitrogen gas (at 60 °C) or vaporized methanol (at 80 °C) were used in the bubble reactor. The ascending bubbles should enable the mass transfer for transesterification and esterification of the feedstock. Further, the catalysts p-toluene sulfonic acid (p-TSS; 3 wt %) or sodium methoxide (1 wt %) were applied to an initial load of 2 L in a molar ratio of 2:1 methanol-to-feedstock related to the fatty acids. Additionally, important process engineering parameters and kinetic information were collected experimentally as well as theoretically. The results show that a bubble reactor is a serious alternative reaction technique for FAME production simplifying the devices and enabling higher throughputs per reaction unit. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie101430w