Fuel cell system

Details Fuel cell system Fuel cell system

1993-08-04

1995-01-10

Kalafut, Stephen

Chemistry: electrical current producing apparatus, product, and

Having magnetic field feature

429 19, H01M 806

Patent

active

053806000

ABSTRACT:
The invention relates to a process for the production of electricity in a fuel cell system by steam reforming a carbonaceous fuel to form fuel cell reactant gas and recycling recovered reactants from the anode exhaust gas to the anode inlet. There is obtained an increase of the electricity production of 20-30% if prior to the recovery and recycling the anode exhaust gas is passed over a steam reforming catalyst by which lower hydrocarbons in said exhaust gas is converted to reactants for use in the fuel. The carbonaceous fuel may for instance be natural gas or methane. A fuel cell system for use in the process comprises supply means (2,10) for carbonaceous fuel; an inlet reformer unit (6) for producing reactant gas for the fuel cell (4); an outlet reforming unit (12) for converting hydrocarbon-containing anode exhaust gas to anode reactant gas; and means (18,90) for recovering the reactant gas and recycling recovered anode reactant gas.

REFERENCES:
patent: 3266938 (1966-08-01), Parker et al.
patent: 4182795 (1980-01-01), Baker et al.
patent: 4532192 (1985-07-01), Baker et al.
patent: 4647516 (1987-03-01), Matsumura et al.
patent: 4877693 (1989-10-01), Baker
patent: 4933242 (1990-06-01), Koga et al.

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