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 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 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 to recover said condensed water; and
(f) a mixing zone to combine said condensed water with said aqueous solution of metal hydride withdrawn from said reservoir thereby diluting it prior to contacting it with the hydrogen generation catalyst.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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Citations
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 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 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 to recover said condensed water; and
(f) a mixing zone to combine said condensed water with said aqueous solution of metal hydride withdrawn from said reservoir thereby diluting it prior to contacting it with the hydrogen generation catalyst.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