Membrane for hydrogen recovery from streams containing...

B - Operations – Transporting – 01 – D

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B01D 53/22 (2006.01) B01D 53/52 (2006.01) B01D 71/02 (2006.01) C01B 3/04 (2006.01) C01B 3/50 (2006.01) C01B 17/04 (2006.01)

Patent

CA 2488295

A membrane (10) for hydrogen recovery from streams (14) containing hydrogen sulfide is provided. The membrane (10) comprises a substrate (18), a hydrogen permeable first membrane layer (16) deposited on the substrate (18), and a second membrane layer (12) deposited on the first layer (16). The second layer (12) contains sulfides of transition metals and positioned on a feed side of the hydrogen sulfide stream (14). The present invention also includes a method for the direct decomposition of hydrogen sulfide to hydrogen and sulfur.

La présente invention concerne une membrane (10) utilisée pour récupérer de l'hydrogène dans des flux (14) contenant du sulfure d'hydrogène. La membrane (10) comprend un substrat (18), une première couche (16) de membrane perméable à l'hydrogène déposée sur le substrat (18) et une deuxième couche (12) de membrane déposée sur la première couche (16). La deuxième couche (12) contient des sulfures de métaux de transition et se trouve placée sur le côté d'arrivée du flux (14) de sulfure d'hydrogène. La présente invention concerne également un procédé de décomposition directe de sulfure d'hydrogène en hydrogène et en soufre.

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