Separation of C6 paraffins using zeolitic imidazolate frameworks / David Peralta in Industrial & engineering chemistry research, Vol. 51 N° 12 (Mars 2012)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 51 N° 12 (Mars 2012) . - pp. 4692–4702 Titre : Separation of C6 paraffins using zeolitic imidazolate frameworks : Comparison with zeolite 5A Type de document : texte imprimé Auteurs : David Peralta, Auteur ; Gérald Chaplais, Auteur ; Angélique Simon-Masseron, Auteur Année de publication : 2012 Article en page(s) : pp. 4692–4702 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Paraffin isomers Zeolite Résumé : The separation of paraffin isomers is a very important topic in the petrochemical industry. Zeolite 5A is industrially used to sieve alkane isomers, but its pore size does not allow the separation of monobranched and dibranched alkanes by a kinetic mechanism. In this publication, we compare three ZIF materials in the separation of C6-paraffin isomers: ZIF-8, ZIF-76, and a new material called IM-22. The performance of the materials is evaluated by a breakthrough curve of binary mixtures of n-hexane, 3-methylpentane, and 2,2-dimethylbutane. We show that ZIF-8 is a very attractive alternative to zeolite 5A because it exhibits a high (kinetic) selectivity for the adsorption of linear alkanes and at the same time a high adsorption capacity. The new material IM-22, a ZIF with CHA topology, seems to be particularly suited for the separation of mono- and dibranched paraffin isomers. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie202995g [article] Separation of C6 paraffins using zeolitic imidazolate frameworks : Comparison with zeolite 5A [texte imprimé] / David Peralta, Auteur ; Gérald Chaplais, Auteur ; Angélique Simon-Masseron, Auteur . - 2012 . - pp. 4692–4702. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 12 (Mars 2012) . - pp. 4692–4702 Mots-clés : Paraffin isomers Zeolite Résumé : The separation of paraffin isomers is a very important topic in the petrochemical industry. Zeolite 5A is industrially used to sieve alkane isomers, but its pore size does not allow the separation of monobranched and dibranched alkanes by a kinetic mechanism. In this publication, we compare three ZIF materials in the separation of C6-paraffin isomers: ZIF-8, ZIF-76, and a new material called IM-22. The performance of the materials is evaluated by a breakthrough curve of binary mixtures of n-hexane, 3-methylpentane, and 2,2-dimethylbutane. We show that ZIF-8 is a very attractive alternative to zeolite 5A because it exhibits a high (kinetic) selectivity for the adsorption of linear alkanes and at the same time a high adsorption capacity. The new material IM-22, a ZIF with CHA topology, seems to be particularly suited for the separation of mono- and dibranched paraffin isomers. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie202995g

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