Reformer and fuel cell system using the same

Details Reformer and fuel cell system using the same Reformer and fuel cell system using the same

1995-08-15

1997-04-01

Gorgos, Kathryn L.

Chemistry: electrical current producing apparatus, product, and

Having magnetic field feature

429 19, 429 20, H01M 804, H01M 818

Patent

active

056164300

ABSTRACT:
While a fuel cell operates, a fuel cell system allows a carbon dioxide rich gas discharged from an anode of the fuel cell through consumption of hydrogen to be fed into a carbon dioxide recovery element of a carbon dioxide recovery unit. The carbon dioxide recovery element is packed with a zeolite, which absorbs and retains a polar substance CO.sub.2. When the fuel cell stops operation, a recovery element heating burner receives a supply of the hydrogen-containing carbon dioxide rich gas fed via a first exhaust conduit of the fuel cell and a supply of methanol from a methanol reservoir, and combusts hydrogen contained in the carbon dioxide rich gas as well as the supply of methanol. This keeps the zeolite packed in the carbon dioxide recovery element under a heating condition, which allows carbon dioxide previously absorbed and retained to be released from the zeolite. A reforming reaction unit of a methanol reformer and the fuel cell are filled with the released carbon dioxide fed therein.

REFERENCES:
patent: 4751151 (1988-06-01), Healy et al.
Doi et al., "Fuel-Reforming Apparatuses For Phosphoric Acid Fuel Cells", Mitsubishi Denki Giho, 66(11), pp. 1055-1059 1992.
Artic Energies Ltd., "Evaluation of Laboratory Tests of the Internal Reformation of Desulfurized Diesel Fuel in an MCFC test Stack", Gov. Rep. Announce. Index (US), 93(21), Abstr. No. 364,500 1993.

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