Method of and arrangement for replenishing hydrogen consumed by

Details Method of and arrangement for replenishing hydrogen consumed by Method of and arrangement for replenishing hydrogen consumed by

1990-12-14

1993-04-13

McFarlane, Anthony

Chemistry: electrical current producing apparatus, product, and

Having magnetic field feature

429 19, 429 20, 429 26, H01M 804, H01M 806

Patent

active

052021955

ABSTRACT:
An arrangement for replenishing hydrogen consumed in a fuel cell device includes a reaction vessel that contains a quantity of a material that releases hydrogen on contact with water in a highly exothermic reaction. A hydrogen-containing gaseous medium is passed through the material quantity under conditions resulting in removal of heat from the material quantity by convection at a heat removal rate sufficient to maintain a temperature differential between an inlet portion and an outlet portion of the reaction vessel below a predetermined level. This includes recirculating a portion of the gaseous medium from the outlet portion to the inlet portion and cooling at least the recirculated portion. Water vapor is added to the recirculated gaseous medium portion at a rate commensurate with that at which hydrogen is being consumed in the fuel cell device for such added water vapor to exothermically react with the solid material, whereas the remainder of the gaseous medium is supplied from the outlet portion to the fuel cell device.

REFERENCES:
patent: 3133837 (1964-05-01), Eidensohn
patent: 3787186 (1974-01-01), Geres
patent: 4362789 (1982-12-01), Dighe
patent: 4537839 (1985-08-01), Cameron
patent: 4539267 (1985-09-01), Sederquist
patent: 4722873 (1988-02-01), Matsumura
patent: 4855192 (1989-08-01), Grasso
patent: 4943493 (1990-07-01), Vartanian
patent: 4994331 (1991-02-01), Cohen

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