Documents disponibles écrits par cet auteur

1,3 - Butadiene adsorption over transition metal polycation exchanged faujasites / Albert M. Tsybulevski in Industrial & engineering chemistry research, Vol. 51 N° 20 (Mai 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 20 (Mai 2012) . - pp. 7073-7080 Titre : 1,3 - Butadiene adsorption over transition metal polycation exchanged faujasites Type de document : texte imprimé Auteurs : Albert M. Tsybulevski, Auteur ; Leonid M. Kustov, Auteur ; Kerry C. Weston, Auteur Année de publication : 2012 Article en page(s) : pp. 7073-7080 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Adsorption Résumé : New adsorbents for butadiene removal from liquid and gas streams, which are transition metal (Cu, Zn, Mn) polycation exchanged zeolites, were prepared on the basis of low-silica and dealuminated faujasites by ion exchange with the corresponding salt solutions at the conditions of their partial hydrolysis. Obtained samples were characterized by XANES, ESR, and DRIFT spectroscopy along with equilibrium and dynamic adsorption studies. It is shown that transition metal polycation containing faujasites significantly surpass monocation analogues with respect to butadiene adsorption capacity. It is also found that an enhanced ability to adsorb butadiene is peculiar to faujasites with strong acidity that defines the activity of the adsorbent in the oligomerization of adsorbed butadiene. The suggested adsorbents are fully regenerable at gradual elevation of regeneration temperature up to 250―350 °C. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=25925049 [article] 1,3 - Butadiene adsorption over transition metal polycation exchanged faujasites [texte imprimé] / Albert M. Tsybulevski, Auteur ; Leonid M. Kustov, Auteur ; Kerry C. Weston, Auteur . - 2012 . - pp. 7073-7080. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 20 (Mai 2012) . - pp. 7073-7080 Mots-clés : Adsorption Résumé : New adsorbents for butadiene removal from liquid and gas streams, which are transition metal (Cu, Zn, Mn) polycation exchanged zeolites, were prepared on the basis of low-silica and dealuminated faujasites by ion exchange with the corresponding salt solutions at the conditions of their partial hydrolysis. Obtained samples were characterized by XANES, ESR, and DRIFT spectroscopy along with equilibrium and dynamic adsorption studies. It is shown that transition metal polycation containing faujasites significantly surpass monocation analogues with respect to butadiene adsorption capacity. It is also found that an enhanced ability to adsorb butadiene is peculiar to faujasites with strong acidity that defines the activity of the adsorbent in the oligomerization of adsorbed butadiene. The suggested adsorbents are fully regenerable at gradual elevation of regeneration temperature up to 250―350 °C. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=25925049