Process for removing electrolyte vapor from fuel cell exhaust ga

Details Process for removing electrolyte vapor from fuel cell exhaust ga Process for removing electrolyte vapor from fuel cell exhaust ga

1984-12-06

1985-08-06

Walton, Donald L.

Chemistry: electrical current producing apparatus, product, and

Having magnetic field feature

429 17, H01M 804

Patent

active

045336075

ABSTRACT:
Electrolyte vapor entrained in the hot exhaust gas stream from a fuel cell is removed by passing the gas stream through a saturator, over high surface area material, in direct contact with water circulating in a loop which also passes through the saturator. The hot gas stream evaporates a small portion of the water, resulting in cooling of the gas stream and condensing of electrolyte therein as it cools. The electrolyte dissolves into the recirculating water. The water is exchanged at predetermined intervals or when the concentration of electrolyte reaches a predetermined level. At least 99% of the electrolyte can be removed from the gas stream in this manner.

REFERENCES:
patent: 3677823 (1972-07-01), Trocciola
patent: 3973993 (1976-08-01), Bloomfield et al.
patent: 3976507 (1976-08-01), Bloomfield
patent: 4001041 (1977-01-01), Menard
patent: 4004947 (1977-01-01), Bloomfield
patent: 4037024 (1977-07-01), Landau
patent: 4072625 (1978-02-01), Pinto
patent: 4333992 (1982-06-01), Healy
patent: 4372759 (1983-02-01), Sederquist et al.

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