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Pt-Sn/MgAl2O4 as n-butane dehydrogenation catalyst in a two-zone fluidized-bed reactor / M. P. Lobera in Industrial & engineering chemistry research, Vol. 48 N° 14 (Juillet 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N° 14 (Juillet 2009) . - pp. 6573–6578 Titre : Pt-Sn/MgAl2O4 as n-butane dehydrogenation catalyst in a two-zone fluidized-bed reactor Type de document : texte imprimé Auteurs : M. P. Lobera, Auteur ; C. Téllez, Auteur ; J. Herguido, Auteur Année de publication : 2009 Article en page(s) : pp. 6573–6578 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : n-Butane  dehydrogenation  Pt-Sn/MgAl2O4  catalyst  Two-zone  fluidized-bed  reactor Résumé : n-Butane dehydrogenation over a Pt-Sn/MgAl2O4 catalyst has been carried out in a two-zone fluidized-bed reactor (TZFBR), where oxidation and reduction of this catalyst occurs in the same vessel but in separate zones. This allows working in a continuous mode with in situ catalyst regeneration, unlike traditional systems that require two different reactors or a single reactor with periodic operation. The effect of the main TZFBR operating variables was studied and its performance compared with that of a conventional fluidized-bed reactor loaded with the same catalyst and with other reactor + catalyst systems. Compared with a previous work in a similar reactor with another catalyst, the selectivity is improved because of the lower tendency to coke formation of the Pt-Sn/MgAl2O4 catalyst. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900381p [article] Pt-Sn/MgAl2O4 as n-butane dehydrogenation catalyst in a two-zone fluidized-bed reactor [texte imprimé] / M. P. Lobera, Auteur ; C. Téllez, Auteur ; J. Herguido, Auteur . - 2009 . - pp. 6573–6578. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 14 (Juillet 2009) . - pp. 6573–6578 Mots-clés : n-Butane  dehydrogenation  Pt-Sn/MgAl2O4  catalyst  Two-zone  fluidized-bed  reactor Résumé : n-Butane dehydrogenation over a Pt-Sn/MgAl2O4 catalyst has been carried out in a two-zone fluidized-bed reactor (TZFBR), where oxidation and reduction of this catalyst occurs in the same vessel but in separate zones. This allows working in a continuous mode with in situ catalyst regeneration, unlike traditional systems that require two different reactors or a single reactor with periodic operation. The effect of the main TZFBR operating variables was studied and its performance compared with that of a conventional fluidized-bed reactor loaded with the same catalyst and with other reactor + catalyst systems. Compared with a previous work in a similar reactor with another catalyst, the selectivity is improved because of the lower tendency to coke formation of the Pt-Sn/MgAl2O4 catalyst. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900381p