System for hydrogen generation
First Claim
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1. A hydrogen generation system comprising:
- (a) a fuel supply reservoir containing an aqueous solution of at least one metal hydride;
(b) a fuel pump configured to withdraw said solution and contact it with a hydrogen generation catalyst thereby generating a fluid product stream comprising hydrogen, water and a salt of said metal;
(c) a gas-liquid separator configured to separate said fluid stream into a gaseous product comprising hydrogen and water vapor, and a liquid comprising water and said metal salt;
(d) a condenser in fluid flow communication with said gaseous product to condense water therefrom;
(e) a condensate recovery zone configured to recover said condensed water; and
(f) a mixing zone configured to combine said condensed water with said aqueous solution of metal hydride withdrawn from said reservoir thereby diluting said solution prior to contacting said solution with the hydrogen generation catalyst.
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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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18 Claims
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1. A hydrogen generation system comprising:
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(a) a fuel supply reservoir containing an aqueous solution of at least one metal hydride; (b) a fuel pump configured to withdraw said solution and contact it with a hydrogen generation catalyst thereby generating a fluid product stream comprising hydrogen, water and a salt of said metal; (c) a gas-liquid separator configured to separate said fluid stream into a gaseous product comprising hydrogen and water vapor, and a liquid comprising water and said metal salt; (d) a condenser in fluid flow communication with said gaseous product to condense water therefrom; (e) a condensate recovery zone configured to recover said condensed water; and (f) a mixing zone configured to combine said condensed water with said aqueous solution of metal hydride withdrawn from said reservoir thereby diluting said solution prior to contacting said solution with the hydrogen generation catalyst. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification