Chemistry: electrical current producing apparatus – product – and – Having magnetic field feature
Patent
1998-07-23
2000-08-29
Nuzzolillo, Maria
Chemistry: electrical current producing apparatus, product, and
Having magnetic field feature
429 19, 429 13, 429 30, 2105021, H01M 804
Patent
active
061106135
ABSTRACT:
An alcohol and water recovery system for a direct aqueous alcohol fuel cell power plant includes at least one direct aqueous alcohol fuel cell for producing electrical energy, and a direct alcohol and water transfer device for recovering alcohol and water leaving the plant and transferring the recovered alcohol and water back into the plant. The direct alcohol and water transfer device passes a process oxidant stream upstream of the plant in mass transfer relationship with a plant exhaust stream that includes aqueous alcohol fuel and process oxidant fluid streams that have passed through the fuel cell, so that alcohol and water in the plant exhaust stream transfer directly through a mass transfer medium of the device to the process oxidant stream entering the fuel cell. The device includes a separator housing for supporting the transfer medium and for preventing bulk mixing of the streams. An exemplary mass transfer medium such as a liquid water portion of a water saturated polyfluorosulfonic ionomer selectively sorbs fluid substances consisting of polar molecules such as alcohol and/or water molecules from the plant exhaust stream containing polar and non-polar molecules, and desorbs the polar molecules into the process oxidant stream to directly recover and transfer alcohol fuel and water leaving the plant back into the fuel cell, and to thereby also humidify and add heat to the process oxidant stream.
REFERENCES:
patent: 4849311 (1989-07-01), Itoh et al.
patent: 5635041 (1997-06-01), Bahar et al.
patent: 5779904 (1998-07-01), Ruderman et al.
patent: 5837393 (1998-11-01), Okamoto
patent: 5853909 (1998-12-01), Reiser
PCT International Application No. WO99/05741 Published Feb. 4, 1999.
Printed Article Entitled "Feasibility Study of SPE Fuel Cell Power Plants for Automotive Applications", Written on Nov. 17, 1981 by General Electric Corporation, Direct Energy Conversion Programs, 50 Fordham Rd., Wilmington, MA 01887, (See, Figs. 1, 16, 28, and pp. 58-60).
Alejandro Ray
Chisholm, Jr. Malcolm J.
International Fuel Cells Corporation
Nuzzolillo Maria
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