Synthesis and gas separation performance of zeolite membranes with orientation-controlled hexagonal crystals supported on γ-Al2O3

V. Parvelescu, C. Tablet, B. L. Su

Résultats de recherche: Contribution dans un livre/un catalogue/un rapport/dans les actes d'une conférenceChapitre

Résumé

Zeolite membranes with the well oriented crystals were synthesized by the vapour phase transformation (VPT) of the mesostructured gel coated and spinning on γ-Al2O3 substrate and characterized by a series of techniques such as XRD, SEM and elemental analysis. It is shown that the orientation of crystals can be controlled by variation of synthesis atmosphere. The compactness and the thickness of the membrane can be tailored by variation of the coating method and the number of coated layers. It is very important to indicate that the alumina flat used played not only the role of the support for membrane growth, but also was used as Al source supplier to guarantee the formation of a silicoaluminate zeolite. The gas separation performances of synthesized membranes have been evaluated. The selectivity of C3H8/O2 of membrane obtained by dip coating is much higher than that by spin coating due to the difference in compactness of these membranes.

langue originaleAnglais
titreFrom Zeolites to Porous MOF Materials
Sous-titreThe 40th Anniversary of International Zeolite Conference
rédacteurs en chefRuren Xu, Zi Gao, Jiesheng Chen, Wenfu Yan
EditeurElsevier Inc.
Pages1036-1041
Nombre de pages6
EditionA
ISBN (imprimé)0444530681, 9780444530684
Les DOIs
Etat de la publicationPublié - 1 janv. 2007

Série de publications

NomStudies in Surface Science and Catalysis
nombreA
Volume170
ISSN (imprimé)0167-2991

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