Process for humidifying a gaseous fuel stream

Details Process for humidifying a gaseous fuel stream Process for humidifying a gaseous fuel stream

1984-12-06

1985-07-23

Walton, Donald L.

Chemistry: electrical current producing apparatus, product, and

Having magnetic field feature

429 16, 429 26, H01M 804

Patent

active

045308861

ABSTRACT:
A fuel gas stream for a fuel cell is humidified by a recirculating hot liquid water stream using the heat of condensation from the humidified stream as the heat to vaporize the liquid water. Humidification is accomplished by directly contacting the liquid water with the dry gas stream in a saturator to evaporate a small portion of the water. The recirculating liquid water is reheated by direct contact with the humidified gas stream in a condenser, wherein water is condensed into the liquid stream. Between the steps of humidifying and condensing water from the gas stream it passes through the fuel cell and additional water, in the form of steam, is added thereto.

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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