Chemistry: electrical current producing apparatus – product – and – Having magnetic field feature
Reexamination Certificate
2005-12-27
2005-12-27
Silverman, Stanley S. (Department: 1754)
Chemistry: electrical current producing apparatus, product, and
Having magnetic field feature
C422S171000, C422S172000, C422S177000, C422S186220, C422S198000, C423S243010, C429S010000, C429S006000, C429S006000
Reexamination Certificate
active
06979505
ABSTRACT:
Method and apparatus are provided for removing contaminants from a hydrogen processor feed stream, as in a fuel cell power plant (110). Inlet oxidant (38), typically air, required by a catalytic hydrogen processor (34) in a fuel processor (14) for a fuel cell stack assembly (12) in the power plant (110), may contain contaminants such as SO2and the like. A cleansing arrangement, which includes an accumulator/degasifier (142, 46) acting as a scrubber, and possibly also a water transfer device (118), receives the inlet oxidant and provides the desired cleansing of contaminants. Water in the water transfer device and in the accumulator/degasifier serves to dissolve the water-soluble contaminants and cleanse them from the oxidant stream. The cleansed oxidant stream (138′) is then delivered to the hydrogen processor and to the fuel cell assembly, with minimal inclusion of detrimental contaminants such as sulfur.
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Dufner Bryan F.
Files Jay C.
Grasso Albert P.
Preston, Jr. John L.
Hertzog Ardith E.
Schneeberger Stephen A.
Silverman Stanley S.
UTC Fuel Cells LLC
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