Process for generating steam in a fuel cell powerplant

Details Process for generating steam in a fuel cell powerplant Process for generating steam in a fuel cell powerplant

F - Mech Eng,Light,Heat,Weapons

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B

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F01B 21/00 (2006.01) H01M 8/06 (2006.01)

Patent

CA 1233649

Abstract Process For Generating Steam In A Fuel Cell Powerplant The steam for a steam reforming reactor of a fuel cell power plant is generated by humidifying the reactor feed gas in a saturator by evaporating a small portion of a mass of liquid water which circulates in a loop passing through the saturator. The water is reheated in each pass through the loop by waste heat from the fuel cell, but is not boiled. In the saturator the relatively dry feed gas passes in direct contact with the liquid water over and through a bed a high surface area material to cause evaporation of some of the water in the loop. All the steam requirements for the reactor can be generated in this manner without the need for a boiler; and steam can be raised at a higher total pressure than in a boiler heated by the same source.

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