Composite gas separation membranes

Details Composite gas separation membranes Composite gas separation membranes

B - Operations, Transporting

01

D

B01D 71/68 (2006.01) B01D 53/22 (2006.01) B01D 67/00 (2006.01) B01D 69/14 (2006.01) B01D 71/02 (2006.01) B01D 71/76 (2006.01)

Patent

CA 2421875

A polysulfone - zeolite composite membrane can be used to separate gas pairs such as hydrogen/carbon dioxide. Zeolite, preferably zeolite 3A particles are covalently bonded to the polymer using an aminofunctional methoxysilane as a coupling agent to bind the zeolite particles to an aldehyde modified polysulfone matrix.

Membrane composite en polysulfone et zéolithe pouvant servir à séparer des paires de gaz, par exemple l'hydrogène et le dioxyde de carbone. La zéolithe, idéalement sous forme de particules de zéolithe 3A, est liée par covalence au polymère à l'aide d'un méthoxysilane aminofonctionnel servant d'agent de couplage afin de lier les particules de zéolithe à une matrice de polysulfone modifiée au moyen d'un aldéhyde.

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