Hydrogen generator with aerogel catalyst

Details Hydrogen generator with aerogel catalyst Hydrogen generator with aerogel catalyst

C - Chemistry, Metallurgy

01

B

C01B 3/06 (2006.01) B01F 1/00 (2006.01) C01B 3/02 (2006.01) H01M 8/00 (2006.01)

Patent

CA 2746895

The present invention concerns a hydrogen gas-generating apparatus (10) comprising (1) a reservoir (100) comprising an aqueous component (110), (2) a fuel compartment (200) comprising a solid metal borohydride fuel component (210), and (3) a reaction chamber (300) comprising an aerogel catalyst (310). A first fluid path introduces the aqueous component into the fuel compartment where the solid metal borohydride fuel component is dissolved into a liquid metal borohydride fuel component (210'). A second fluid path introduces the liquid metal borohydride fuel component into the reaction chamber to produce a hydrogen gas by means of a hydride- water oxidation reaction that is accelerated by the aerogel catalyst. The temperature and/or pressure of the reaction chamber are predetermined to maintain the water in the borate byproduct to be substantially in the liquid phase to minimize the precipitation of the borate byproduct.

La présente invention concerne un appareil de production de gaz hydrogène (10) comprenant les éléments suivants : (1) un réservoir (100) comportant un composant aqueux (110), (2) un compartiment de combustible (200) comprenant un composant combustible de borohydrure de métal solide (210), et (3) une chambre de réaction (300) comprenant un catalyseur aérogel (310). Un premier passage de fluide introduit le composant aqueux dans le compartiment de combustible où le composant de combustible de borohydrure de métal solide est dissous dans un composant de combustible de borohydrure de métal liquide (210'). Un second passage de fluide introduit le composant de combustible de borohydrure de métal liquide dans la chambre de réaction pour produire un gaz hydrogène au moyen d'une réaction d'oxydation hydrure-eau qui est accélérée par le catalyseur aérogel. La température et/ou la pression de la chambre de réaction sont déterminées pour maintenir l'eau dans le sous-produit de borate sensiblement dans la phase liquide, afin de minimiser la précipitation du sous-produit de borate.

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