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Joint Transformation of Methanol and n-Butane into Olefins on an HZSM-5 Zeolite Catalyst in Reaction–Regeneration Cycles / Andrés T. Aguayo in Industrial & engineering chemistry research, Vol. 51 N° 40 (Octobre 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 40 (Octobre 2012) . - pp. 13073–13084 Titre : Joint Transformation of Methanol and n-Butane into Olefins on an HZSM-5 Zeolite Catalyst in Reaction–Regeneration Cycles Type de document : texte imprimé Auteurs : Andrés T. Aguayo, Auteur ; Ana G. Gayubo, Auteur ; Ainara Ateka, Auteur Année de publication : 2012 Article en page(s) : pp. 13073–13084 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Methanol  Zeolite  Catalys Résumé : The joint transformation of methanol and n-butane has been studied under energy-neutral conditions (methanol/n-butane molar ratio of 3/1) on an HZSM-5 zeolite catalyst in order to determine the reactivation kinetics and optimize the process conditions for maximizing the light olefin production rate. The methodology for determining the reactivation kinetics combines the kinetic models for the main reaction and deactivation (determined in previous studies), as well as the experimental reactivation results obtained for a reaction step (at 500 and 550 °C) subsequent to regeneration by coke combustion with air (at 550 °C, up to 120 min). By simulation of the operation in reaction–regeneration cycles, an optimum average olefin production rate of 22 mol/(gcatalyst h) is obtained for a reaction temperature of 500 °C, space time of 0.37 gcatalyst h mol–1, time on stream of 40 min, and partial reactivation by coke combustion for 15 min. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie301142k [article] Joint Transformation of Methanol and n-Butane into Olefins on an HZSM-5 Zeolite Catalyst in Reaction–Regeneration Cycles [texte imprimé] / Andrés T. Aguayo, Auteur ; Ana G. Gayubo, Auteur ; Ainara Ateka, Auteur . - 2012 . - pp. 13073–13084. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 40 (Octobre 2012) . - pp. 13073–13084 Mots-clés : Methanol  Zeolite  Catalys Résumé : The joint transformation of methanol and n-butane has been studied under energy-neutral conditions (methanol/n-butane molar ratio of 3/1) on an HZSM-5 zeolite catalyst in order to determine the reactivation kinetics and optimize the process conditions for maximizing the light olefin production rate. The methodology for determining the reactivation kinetics combines the kinetic models for the main reaction and deactivation (determined in previous studies), as well as the experimental reactivation results obtained for a reaction step (at 500 and 550 °C) subsequent to regeneration by coke combustion with air (at 550 °C, up to 120 min). By simulation of the operation in reaction–regeneration cycles, an optimum average olefin production rate of 22 mol/(gcatalyst h) is obtained for a reaction temperature of 500 °C, space time of 0.37 gcatalyst h mol–1, time on stream of 40 min, and partial reactivation by coke combustion for 15 min. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie301142k