Solid oxide fuel cell process and apparatus

Details Solid oxide fuel cell process and apparatus Solid oxide fuel cell process and apparatus

2007-03-28

2011-11-15

Menon, Krishnan S (Department: 1777)

Chemistry: electrical current producing apparatus, product, and

Fuel cell, subcombination thereof, or method of making or...

Fuel cell with solid electrolyte

C429S484000, C429S485000, C429S486000, C429S487000, C429S488000, C429S490000, C429S502000, C429S505000

Reexamination Certificate

active

08057951

ABSTRACT:
Conveying gas containing sulfur through a sulfur tolerant planar solid oxide fuel cell (PSOFC) stack for sulfur scrubbing, followed by conveying the gas through a non-sulfur tolerant PSOFC stack. The sulfur tolerant PSOFC stack utilizes anode materials, such as LSV, that selectively convert H2S present in the fuel stream to other non-poisoning sulfur compounds. The remaining balance of gases remaining in the completely or near H2S-free exhaust fuel stream is then used as the fuel for the conventional PSOFC stack that is downstream of the sulfur-tolerant PSOFC. A broad range of fuels such as gasified coal, natural gas and reformed hydrocarbons are used to produce electricity.

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