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Modeling and optimization of a fermentation process integrated with cell recycling and pervaporation for multiple objectives / Shivom Sharma in Industrial & engineering chemistry research, Vol. 51 N° 15 (Avril 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 15 (Avril 2012) . - pp. 5542-5551 Titre : Modeling and optimization of a fermentation process integrated with cell recycling and pervaporation for multiple objectives Type de document : texte imprimé Auteurs : Shivom Sharma, Auteur ; G.P. Rangaiah, Auteur Année de publication : 2012 Article en page(s) : pp. 5542-5551 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Membrane  separation  Pervaporation  Recycling  Fermentation  Optimization  Modeling Résumé : Biofuels have potential to replace fossil fuels as a clean energy source. Bioethanol and biodiesel are the most commonly produced biofuels. Bioethanol is produced by fermenting sugar components of biomass (e.g., sugarcane, com, cellulosic materials). Although ethanol production using sugar and starch as feedstocks is well established, it can still be improved. Ethanol concentration in the fermentor inhibits conversion of fermentable sugars to ethanol, which results in low yield and productivity; these can be improved by better fermentation kinetics and/or process design. Ethanol can be removed from the fermentor by using extraction or a membrane process. Recently, bioethanol production process with interstage extraction has been optimized. The present work models and optimizes a three-stage bioethanol process integrated with cell recycling and pervaporation for multiple objectives using multiobjective differential evolution. The integrated process, with glucose and xylose as feedstocks, has been optimized for both ethanol productivity and xylose conversion simultaneously. The performance of the three-stage fermentation process integrated with pervaporation is compared with the three-stage fermentation process integrated with extraction, and the former is found to be better. The net flow method is used to rank the obtained nondominated solutions for the three-stage fermentation process integrated with cell recycling and pervaporation. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=25815833 [article] Modeling and optimization of a fermentation process integrated with cell recycling and pervaporation for multiple objectives [texte imprimé] / Shivom Sharma, Auteur ; G.P. Rangaiah, Auteur . - 2012 . - pp. 5542-5551. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 15 (Avril 2012) . - pp. 5542-5551 Mots-clés : Membrane  separation  Pervaporation  Recycling  Fermentation  Optimization  Modeling Résumé : Biofuels have potential to replace fossil fuels as a clean energy source. Bioethanol and biodiesel are the most commonly produced biofuels. Bioethanol is produced by fermenting sugar components of biomass (e.g., sugarcane, com, cellulosic materials). Although ethanol production using sugar and starch as feedstocks is well established, it can still be improved. Ethanol concentration in the fermentor inhibits conversion of fermentable sugars to ethanol, which results in low yield and productivity; these can be improved by better fermentation kinetics and/or process design. Ethanol can be removed from the fermentor by using extraction or a membrane process. Recently, bioethanol production process with interstage extraction has been optimized. The present work models and optimizes a three-stage bioethanol process integrated with cell recycling and pervaporation for multiple objectives using multiobjective differential evolution. The integrated process, with glucose and xylose as feedstocks, has been optimized for both ethanol productivity and xylose conversion simultaneously. The performance of the three-stage fermentation process integrated with pervaporation is compared with the three-stage fermentation process integrated with extraction, and the former is found to be better. The net flow method is used to rank the obtained nondominated solutions for the three-stage fermentation process integrated with cell recycling and pervaporation. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=25815833