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Minimization of chemicals use during adsorptive recovery of succinic acid / Çağri Efe in Industrial & engineering chemistry research, Vol. 49 N° 8 (Avril 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 8 (Avril 2010) . - pp. 3794–3801 Titre : Minimization of chemicals use during adsorptive recovery of succinic acid Type de document : texte imprimé Auteurs : Çağri Efe, Auteur ; Mervin Pieterse, Auteur ; Jorge Gascon, Auteur Année de publication : 2010 Article en page(s) : pp. 3794–3801 Note générale : Industrial Chemistry Langues : Anglais (eng) Mots-clés : Chemicals  Adsorptive  Succinic  Acid Résumé : In adsorptive separation processes, regeneration of the adsorbent plays an important role. Depending on the type of product the regeneration strategy might differ from one process to another. In this study, the desorption of succinic acid from a high silica ZSM-5 adsorbent is studied, using displacement by an organic solvent or CO2, or temperature swing. According to a number of process criteria and solvent selection criteria, 2-butanone performed better than the other displacing agents studied. However, the subsequent regeneration step involved desorption of butanone, which proved to be difficult and required a temperature above the normal boiling point of water under elevated pressures. Such a temperature swing with hot water can also be applied for direct succinic acid desorption without intermediate displacement by butanone. A countercurrent continuous adsorption process was modeled to compare these options. Direct temperature swing using pressurized water at >100 °C proved to be more attractive to achieve a sustainable process. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie1000168 [article] Minimization of chemicals use during adsorptive recovery of succinic acid [texte imprimé] / Çağri Efe, Auteur ; Mervin Pieterse, Auteur ; Jorge Gascon, Auteur . - 2010 . - pp. 3794–3801. Industrial Chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 8 (Avril 2010) . - pp. 3794–3801 Mots-clés : Chemicals  Adsorptive  Succinic  Acid Résumé : In adsorptive separation processes, regeneration of the adsorbent plays an important role. Depending on the type of product the regeneration strategy might differ from one process to another. In this study, the desorption of succinic acid from a high silica ZSM-5 adsorbent is studied, using displacement by an organic solvent or CO2, or temperature swing. According to a number of process criteria and solvent selection criteria, 2-butanone performed better than the other displacing agents studied. However, the subsequent regeneration step involved desorption of butanone, which proved to be difficult and required a temperature above the normal boiling point of water under elevated pressures. Such a temperature swing with hot water can also be applied for direct succinic acid desorption without intermediate displacement by butanone. A countercurrent continuous adsorption process was modeled to compare these options. Direct temperature swing using pressurized water at >100 °C proved to be more attractive to achieve a sustainable process. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie1000168