Study of propane dehydrogenation to propylene in an integrated fluidized bed reactor using Pt - Sn /Al - SAPO - 34 novel catalyst / Zeeshan Nawaz in Industrial & engineering chemistry research, Vol. 49 N° 10 (Mai 2010)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 49 N° 10 (Mai 2010) . - pp. 4614–4619 Titre : Study of propane dehydrogenation to propylene in an integrated fluidized bed reactor using Pt - Sn /Al - SAPO - 34 novel catalyst Type de document : texte imprimé Auteurs : Zeeshan Nawaz, Auteur ; Yue Chu, Auteur ; Wei, Yang, Auteur Année de publication : 2010 Article en page(s) : pp. 4614–4619 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Catalyst Résumé : Direct propane dehydrogenation is the most economical route to propylene, but very complex due to endothermic reaction requirements, equilibrium limitations, stereochemistry, and engineering constraints. The state of the art idea of bimodal particle (gas−solid−solid) fluidization was applied, in order to overcome alkane dehydrogenation reaction barriers in a fluidized bed technology. In this study, the propane dehydrogenation reaction was studied in an integrated fluidized bed reactor, using Pt-Sn/Al-SAPO-34 novel catalyst at 590 °C. The results of fixed bed microreactor and integrated bimodal particle fluidized bed reactors were compared and parametrically characterized. The results showed that the propylene selectivity is over 95%, with conversion between 31 and 24%. This significant enhancement is by using novel bimodal particle fluidization system, owing to uniform heat transfer throughout the reactor and transfer coke from principal catalyst to secondary catalyst, which increases principal catalyst’s stability. Experimental investigation reveals that the novel Pt-Sn/Al-SAPO-34 catalyst and proposed intensified design of fluidized bed reactor is a promising opportunity for direct propane dehydrogenation to propylene, with both economic and operational benefit. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie902043w [article] Study of propane dehydrogenation to propylene in an integrated fluidized bed reactor using Pt - Sn /Al - SAPO - 34 novel catalyst [texte imprimé] / Zeeshan Nawaz, Auteur ; Yue Chu, Auteur ; Wei, Yang, Auteur . - 2010 . - pp. 4614–4619. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 10 (Mai 2010) . - pp. 4614–4619 Mots-clés : Catalyst Résumé : Direct propane dehydrogenation is the most economical route to propylene, but very complex due to endothermic reaction requirements, equilibrium limitations, stereochemistry, and engineering constraints. The state of the art idea of bimodal particle (gas−solid−solid) fluidization was applied, in order to overcome alkane dehydrogenation reaction barriers in a fluidized bed technology. In this study, the propane dehydrogenation reaction was studied in an integrated fluidized bed reactor, using Pt-Sn/Al-SAPO-34 novel catalyst at 590 °C. The results of fixed bed microreactor and integrated bimodal particle fluidized bed reactors were compared and parametrically characterized. The results showed that the propylene selectivity is over 95%, with conversion between 31 and 24%. This significant enhancement is by using novel bimodal particle fluidization system, owing to uniform heat transfer throughout the reactor and transfer coke from principal catalyst to secondary catalyst, which increases principal catalyst’s stability. Experimental investigation reveals that the novel Pt-Sn/Al-SAPO-34 catalyst and proposed intensified design of fluidized bed reactor is a promising opportunity for direct propane dehydrogenation to propylene, with both economic and operational benefit. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie902043w

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