Molten carbonate fuel cell sulfur scrubber

Details Molten carbonate fuel cell sulfur scrubber Molten carbonate fuel cell sulfur scrubber

1991-12-30

1993-05-25

Maples, John S.

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

429 16, 429 17, 429 19, H01M 804

Patent

active

052139123

ABSTRACT:
Sulfur compounds poison catalysts, such as the anode catalysts and reformer catalysts within molten carbonate fuel cell systems. This poisoning is eliminated using a sulfur scrubber 29 located prior to the inlet of the cathode chamber 13. Anode exhaust 19 which contains water, carbon dioxide and possibly sulfur impurities, is combined with a cathode exhaust recycle stream 22 and an oxidant stream 25 and burned in a burner 33 to produce water, carbon dioxide. If sulfur compounds are present in either the anode exhaust, cathode exhaust stream, or oxidant stream, sulfur trioxide and sulfur dioxide are produced. The combined oxidant-combustion stream 27 from the burner 33 is then directed through a sulfur scrubber 29 prior to entering the cathode chamber 13. The sulfur scrubber 29 absorbs sulfur compounds from the combined oxidant-combustion stream 27. Removal of the sulfur compounds at this point prevents concentration of the sulfur in the molten carbonate fuel cell system. Therefore, neither the reformer catalyst nor the anode 17 experience sulfur poisoning.

REFERENCES:
patent: 4120668 (1978-10-01), Fraley
patent: 4704340 (1987-11-01), Kunz
patent: 4921765 (1990-05-01), Gmeindl et al.
patent: 4925745 (1990-05-01), Remick et al.
patent: 4994331 (1991-02-01), Cohen
patent: 5079103 (1992-01-01), Schramm
"Effects of Sulfur on Molten Carbonate Fuel Cells", Proceedings of the Symposium on Molten Carbonate Fuel Cells, The Electrochemical Society, Montreal, Canada, May, 1982, Proc. vol. 84-13, pp. 246-270.

Affiliated with

Also associated with

Rating

Molten carbonate fuel cell sulfur scrubber does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Molten carbonate fuel cell sulfur scrubber, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Molten carbonate fuel cell sulfur scrubber will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-896487