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Enzymatic hydrolysis of lignocellulosic biomasses via CFD and experiments / Danilo Carvajal in Industrial & engineering chemistry research, Vol. 51 N° 22 (Juin 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 22 (Juin 2012) . - pp. 7518–7525 Titre : Enzymatic hydrolysis of lignocellulosic biomasses via CFD and experiments Type de document : texte imprimé Auteurs : Danilo Carvajal, Auteur ; Daniele L. Marchisio, Auteur ; Samir Bensaid, Auteur Année de publication : 2012 Article en page(s) : pp. 7518–7525 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Enzymatic  Hydrolysis  Biomasses Résumé : The time evolution of the rheological properties of pretreated Arundo slurries has been estimated, during enzymatic hydrolysis for bioethanol production, by computational fluid dynamics simulations in conjunction with experimental tests on a laboratory scale anchor reactor with different solid concentrations (18.5 and 27.5% w/w) and stirring velocities (50–200 rpm). The simulations were carried out with Fluent 6.2 using the moving reference frame approach and the Herschel–Bulkley rheological model. Great care was taken in the development of the computational grid and in the solution of the numerical issues. The identification of the rheological parameters was successful and the results are consistent with other works published in the literature on similar systems. The next steps of this work will involve the use of these results to design new continuous reactors for enzymatic hydrolysis and their scale up to a pilot and industrial level. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie201673t [article] Enzymatic hydrolysis of lignocellulosic biomasses via CFD and experiments [texte imprimé] / Danilo Carvajal, Auteur ; Daniele L. Marchisio, Auteur ; Samir Bensaid, Auteur . - 2012 . - pp. 7518–7525. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 22 (Juin 2012) . - pp. 7518–7525 Mots-clés : Enzymatic  Hydrolysis  Biomasses Résumé : The time evolution of the rheological properties of pretreated Arundo slurries has been estimated, during enzymatic hydrolysis for bioethanol production, by computational fluid dynamics simulations in conjunction with experimental tests on a laboratory scale anchor reactor with different solid concentrations (18.5 and 27.5% w/w) and stirring velocities (50–200 rpm). The simulations were carried out with Fluent 6.2 using the moving reference frame approach and the Herschel–Bulkley rheological model. Great care was taken in the development of the computational grid and in the solution of the numerical issues. The identification of the rheological parameters was successful and the results are consistent with other works published in the literature on similar systems. The next steps of this work will involve the use of these results to design new continuous reactors for enzymatic hydrolysis and their scale up to a pilot and industrial level. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie201673t