Laminated zeolite composite and production thereof

Details Laminated zeolite composite and production thereof Laminated zeolite composite and production thereof

B - Operations, Transporting

01

D

B01D 71/02 (2006.01) B01D 53/22 (2006.01) B01D 69/10 (2006.01) B01J 37/02 (2006.01) C01B 39/02 (2006.01) C01B 39/38 (2006.01) C07C 7/144 (2006.01)

Patent

CA 2460515

The laminated zeolite composite of the invention comprises an MFI membrane constituted by an MFI-type zeolite having an SiO2/A12O3 (molar ratio) of 40 to 100, and a porous substrate constituted by an MFI-type zeolite and having a SiO2/A12O3 (molar ratio) of 20 to 400. The MFI membrane is formed on the porous substrate, and the composite has a high separation characteristic and high permeability.

L'invention concerne un composite de zéolithe stratifié, caractérisé en ce qu'il comporte un film FRI constitué d'un type de zéolithe MFI et présentant un (rapport molaire) SiO2/Al2O3 compris entre 40 et 100, et un substrat poreux constitué d'un type de zéolithe MFI et présentant un (rapport molaire) SiO2/Al2O3 compris entre 20 et 400 ; le film FRI étant formé sur le substrat. Ce composite de zéolithe stratifié présente d'excellentes caractéristiques de séparation combinées à des performances supérieures de perméation.

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