Hollow Y zeolite single crystals: synthesis, characterization and activity in the hydroisomerization of n-hexadecane - IFPEN - IFP Energies nouvelles Accéder directement au contenu
Article Dans Une Revue Oil & Gas Science and Technology - Revue d'IFP Energies nouvelles Année : 2019

Hollow Y zeolite single crystals: synthesis, characterization and activity in the hydroisomerization of n-hexadecane

Résumé

Hollow Y zeolite single crystals have been obtained from a conventional NaY zeolite following a three-step process involving a severe dealumination of the zeolite with silicon tetrachloride (step #1), followed by an acid washing under mild conditions (step #2) and finally a selective dissolution of the crystals core in the presence of protective Al species (step #3). Crystals are characterized by the presence of a regular internal cavity with 0.1–0.2 nm thick microporous walls. They contain a relatively low framework Al content but significant amounts of extraframework Al oxide species mainly located on the external surface of the crystals. Hollow crystals have been mixed with a Pt-supported alumina binder and used as catalysts in the hydroisomerization of n-hexadecane. Compared to the corresponding bulk crystals obtained after step #2, their higher activity has been attributed to a better efficiency, directly resulting from the presence of the cavity.
Fichier principal
Vignette du fichier
ogst180213.pdf (3.64 Mo) Télécharger le fichier
Origine : Publication financée par une institution
Loading...

Dates et versions

hal-02101586 , version 1 (16-04-2019)

Identifiants

Citer

Céline Pagis, Christophe Bouchy, Mathias Dodin, Raquel Martinez Franco, David Farrusseng, et al.. Hollow Y zeolite single crystals: synthesis, characterization and activity in the hydroisomerization of n-hexadecane. Oil & Gas Science and Technology - Revue d'IFP Energies nouvelles, 2019, 74, pp.38. ⟨10.2516/ogst/2019015⟩. ⟨hal-02101586⟩
41 Consultations
130 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More