Separation of carbon dioxide from other gases

C - Chemistry – Metallurgy – 07 – C

Patent

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C07C 7/12 (2006.01) B01D 53/047 (2006.01) B01D 53/46 (2006.01) C07C 9/04 (2006.01)

Patent

CA 2585963

An inventive adsorptive gas separation process is provided capable of producing a purified methane product gas as a light non-adsorbed product gas as opposed to a heavy desorbed exhaust gas component, from a feed gas mixture comprising at least methane, and carbon dioxide. In an embodiment of the invention, the feed gas mixture may comprise at least about 10% carbon dioxide, and the purified methane product gas may be desirably purified to contain less than about 5000 ppm carbon dioxide. In another embodiment of the invention, the feed gas mixture may comprise at least about 50% carbon dioxide, and the purified methane product gas may be desirably purified to contain less than about 5000 ppm carbon dioxide.

L'invention concerne un procédé permettant de séparer un gaz par adsorption permettant de produire un gaz produit méthane purifié comme un produit à lumière non adsorbée, contrairement à un composé gaz d'échappement lourdement désorbé, d'un mélange gazeux d'alimentation contenant au moins du méthane et du dioxyde de carbone. Dans un mode de réalisation, le mélange gaz d'alimentation peut contenir au moins environ 10 % de dioxyde de carbone, et le gaz produit de méthane purifié peut éventuellement être purifié pour contenir moins d'environ 5000 ppm de dioxyde de carbone. Dans un autre mode de réalisation, le mélange gazeux d'alimentation peut contenir au moins environ 50 % de dioxyde de carbone, et le gaz produit méthane purifié peut éventuellement être purifié pour contenir moins d'environ 5000 ppm de dioxyde de carbone.

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