Vapor-phase adsorption and separation of ethylbenzene and styrene on the metal–organic frameworks MIL-47 and MIL-53(Al) / Tom Remy in Industrial & engineering chemistry research, Vol. 51 N° 45 (Novembre 2012)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 51 N° 45 (Novembre 2012) . - pp. 14824-14833 Titre : Vapor-phase adsorption and separation of ethylbenzene and styrene on the metal–organic frameworks MIL-47 and MIL-53(Al) Type de document : texte imprimé Auteurs : Tom Remy, Auteur ; Lina Ma, Auteur ; Michael Maes, Auteur Année de publication : 2013 Article en page(s) : pp. 14824-14833 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Adsorption Résumé : Separation of styrene (ST) from ethylbenzene (EB) remains an industrially relevant challenge in the production of polystyrene. Adsorptive separation with metal—organic frameworks (MOFs) is a potential alternative for the conventional vacuum distillation process. Adsorption and separation of ST and EB on the MOFs MIL-47 and MIL-53(Al) were studied under vapor-phase conditions. ST and EB show traditional type I isotherms on MIL-47. Contrarily, ST adsorption isotherms show steep steps on MIL-53(Al) as a result of the breathing of the flexible MOF upon increased adsorbate pressure. The separation potential of both MOFs was investigated by performing vapor-phase breakthrough experiments at total hydrocarbon partial pressures between 1.14 and 16.4 mbar and temperatures between 35 and 90 °C. ST is preferentially adsorbed on both MOFs. Although the MOFs are isostructural, the evolution of selectivity with temperature and pressure is different for both materials due to the different interaction and separation mechanisms. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26620395 [article] Vapor-phase adsorption and separation of ethylbenzene and styrene on the metal–organic frameworks MIL-47 and MIL-53(Al) [texte imprimé] / Tom Remy, Auteur ; Lina Ma, Auteur ; Michael Maes, Auteur . - 2013 . - pp. 14824-14833. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 45 (Novembre 2012) . - pp. 14824-14833 Mots-clés : Adsorption Résumé : Separation of styrene (ST) from ethylbenzene (EB) remains an industrially relevant challenge in the production of polystyrene. Adsorptive separation with metal—organic frameworks (MOFs) is a potential alternative for the conventional vacuum distillation process. Adsorption and separation of ST and EB on the MOFs MIL-47 and MIL-53(Al) were studied under vapor-phase conditions. ST and EB show traditional type I isotherms on MIL-47. Contrarily, ST adsorption isotherms show steep steps on MIL-53(Al) as a result of the breathing of the flexible MOF upon increased adsorbate pressure. The separation potential of both MOFs was investigated by performing vapor-phase breakthrough experiments at total hydrocarbon partial pressures between 1.14 and 16.4 mbar and temperatures between 35 and 90 °C. ST is preferentially adsorbed on both MOFs. Although the MOFs are isostructural, the evolution of selectivity with temperature and pressure is different for both materials due to the different interaction and separation mechanisms. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26620395

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