Hydrogen production using electrochemical reforming and...

C - Chemistry – Metallurgy – 01 – B

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C01B 3/00 (2006.01)

Patent

CA 2613483

A process, preferably continuous, for producing hydrogen gas comprising contacting in the liquid phase at least one oxidizable organic substance in the presence of a mixture comprising at least one conductive catalyst and an aqueous alkaline carbonate electrolyte, wherein at least one bicarbonate composition produced by reaction of the electrolyte is regenerated and the at least one oxidizable organic substance comprises a oxygenated hydrocarbon, for example methanol and/or dimethyl ether. In a preferred embodiment the alkaline electrolyte is regenerated using steam. Various advantageous reaction schemes are described, utilizing, e.g., co-current and countercurrent stream flow and alternative tower sequence arrangements.

La présente invention a trait à un procédé, de préférence continu, pour la production de gaz hydrogène comprenant la mise en contact dans la phase liquide d'au moins une substance organique oxydable en présence d'un mélange comportant au moins un catalyseur conducteur et un électrolyte de carbonate alcalin aqueux, dans lequel au moins une composition de bicarbonate produite par la réaction de l'électrolyte est régénérée et ladite au moins une substance organique oxydable comporte un hydrocarbure oxygéné, par exemple du méthanol et/ou de l'éther diméthyle. Dans un mode de réalisation préféré l'électrolyte alcalin est régénéré à l'aide de la vapeur. L'invention a trait à divers schémas de réaction avantageux, utilisant, par exemple, un flux continu cocourant et contre-courant et des agencements de colonnes alternatifs.

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