System for hydrogen generation
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Abstract
The present invention relates to an improvement in a system for the generation of hydrogen by contacting an aqueous solution of a metal hydride salt with a hydrogen generation catalyst. In particular, the present invention relates to the incorporation within the system of a recycle line of water condensed from the fluid product to the feed line to be contacted with the catalyst. The internal recycle line permits the use of a more concentrated solution of metal hydride as it is diluted by the recycle line prior to contact with the catalyst.
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Citations
62 Claims
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1-18. -18. (canceled)
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19. A method of generating hydrogen, comprising:
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providing an aqueous composition containing at least one metal hydride;
contacting the metal hydride with a hydrogen generation catalyst to generate a fluid product stream comprising hydrogen, water and a metal salt; and
mixing at least part of the water of the fluid product stream with the metal hydride prior to contacting the metal hydride with the catalyst. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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43. A method of generating hydrogen, comprising:
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providing a fuel supply reservoir containing an aqueous solution of at least one metal hydride;
withdrawing the aqueous solution from the reservoir and contacting the aqueous solution with a hydrogen generation catalyst to generate a fluid product stream comprising hydrogen, water and a salt of the metal;
separating the fluid stream into a gaseous product comprising hydrogen and water vapor, and a liquid product comprising water and the metal salt;
recovering at least part of the water vapor to obtain recovered water; and
mixing the recovered water with the aqueous solution of metal hydride prior to contacting the catalyst. - View Dependent Claims (44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62)
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Specification