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Applicability of a countercurrent enzymatically catalyzed multistage extractive reaction process for the hydrolysis of methyl octanoate / Przemyslaw Krause in Industrial & engineering chemistry research, Vol. 49 N° 7 (Avril 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 7 (Avril 2010) . - pp. 3217–3222 Titre : Applicability of a countercurrent enzymatically catalyzed multistage extractive reaction process for the hydrolysis of methyl octanoate Type de document : texte imprimé Auteurs : Przemyslaw Krause, Auteur ; Roberto Macias, Auteur ; Georg Fieg, Auteur Année de publication : 2010 Article en page(s) : pp. 3217–3222 Note générale : Industrial Chemistry Langues : Anglais (eng) Mots-clés : Enzymatically  Catalyzed  Multistage  Methyl  Octanoate Résumé : An assessment of the minimum requirements for a countercurrent multistage extractive reaction process for the enzymatic hydrolysis of methyl octanoate with immobilized lipase in undiluted media was made. For simulation, UNIQUAC parameters for the quaternary reaction system containing methyl octanoate, octanoic acid, methanol, and water at 48.5 °C and atmospheric pressure and the equilibrium conversion, as a function of the initial water content, were determined. For a one-equilibrium stage reaction, good overall agreement, with respect to the liquid-phase compositions between experiments, and results from chemical and phase equilibrium calculations, based on Gibbs free-energy minimization, was obtained. A subsequently performed analysis of the influence of the stage number and solvent:feed ratio, using commercial flowsheet simulation software, showed that, in a countercurrent process, five equilibrium stages are required to obtain octanoic acid with a purity exceeding mass fractions of 0.95 at comparably moderate water excess. ISSN : Methyl Octan En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901789p [article] Applicability of a countercurrent enzymatically catalyzed multistage extractive reaction process for the hydrolysis of methyl octanoate [texte imprimé] / Przemyslaw Krause, Auteur ; Roberto Macias, Auteur ; Georg Fieg, Auteur . - 2010 . - pp. 3217–3222. Industrial Chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 7 (Avril 2010) . - pp. 3217–3222 Mots-clés : Enzymatically  Catalyzed  Multistage  Methyl  Octanoate Résumé : An assessment of the minimum requirements for a countercurrent multistage extractive reaction process for the enzymatic hydrolysis of methyl octanoate with immobilized lipase in undiluted media was made. For simulation, UNIQUAC parameters for the quaternary reaction system containing methyl octanoate, octanoic acid, methanol, and water at 48.5 °C and atmospheric pressure and the equilibrium conversion, as a function of the initial water content, were determined. For a one-equilibrium stage reaction, good overall agreement, with respect to the liquid-phase compositions between experiments, and results from chemical and phase equilibrium calculations, based on Gibbs free-energy minimization, was obtained. A subsequently performed analysis of the influence of the stage number and solvent:feed ratio, using commercial flowsheet simulation software, showed that, in a countercurrent process, five equilibrium stages are required to obtain octanoic acid with a purity exceeding mass fractions of 0.95 at comparably moderate water excess. ISSN : Methyl Octan En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901789p