Method of generating high-purity nitrogen gas

Details Method of generating high-purity nitrogen gas Method of generating high-purity nitrogen gas

1993-09-22

1994-07-19

Gorgos, Kathryn

Chemistry: electrical current producing apparatus, product, and

Having magnetic field feature

429 22, 429 23, 429156, 204 59R, 20415314, H01M 800

Patent

active

053308573

ABSTRACT:
High-purity nitrogen gas is generated by reducing at least the residual oxygen content of at least the cathode exhaust gas stream of a fuel cell device. The oxygen reduction is achieved either by controlling the passage of an oxidant gas through the cathode side of the fuel cell device in such a manner as to increase the oxygen utilization at the cathode side of the fuel cell device relative to the optimum electric power generation operating conditions of the fuel cell device, or by removing most of the residual oxygen from the cathode exhaust gas stream exhausted from the cathode side of the fuel cell device, while maintaining both oxygen and nitrogen contained in the cathode exhaust gas in their gaseous states throughout, or both. Moreover, anode exhaust gas can be reacted in a reformer burner with a reduced amount of excess oxygen and/or the reformer burner exhaust gas can be purified to remove combustion products and/or oxygen therefrom.

REFERENCES:
patent: 3879218 (1975-04-01), Kellen et al.

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