Chemistry of inorganic compounds – Hydrogen or compound thereof – Elemental hydrogen
Reexamination Certificate
2003-12-18
2010-06-29
Silverman, Stanley (Department: 1793)
Chemistry of inorganic compounds
Hydrogen or compound thereof
Elemental hydrogen
C423S644000, C423S655000
Reexamination Certificate
active
07744849
ABSTRACT:
A method and catalysts and fuel processing apparatus for producing a hydrogen-rich gas, such as a hydrogen-rich syngas are disclosed. According to the method a CO-containing gas, such as a syngas, contacts a water gas shift catalyst in the presence of water, preferably at a temperature of less than about 450° C. to produce a hydrogen-rich gas, such as a hydrogen-rich syngas. Also disclosed is a water gas shift catalyst comprising:a) Pt, its oxides or mixtures thereof;b) at least one of Li, Na, K, Rb, Cs, Mg, Ca, Sr, Ba, their oxides and mixtures thereof; andc) at least one of Sc, Y, Ti, Zr, V, Nb, Ta, Cr, Mo, W, Mn, Fe, Co, Ir, Ni, Pd, La, Ce, Pr, Nd, Sm, Eu, their oxides and mixtures thereof.The WGS catalyst may be supported on a carrier, such as any one member or a combination of alumina, zirconia, titania, ceria, magnesia, lanthania, niobia, yttria and iron oxide. Fuel processors containing such water gas shift catalysts are also disclosed.
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Brooks Christopher James
Carhart Raymond E.
Hagemeyer Alfred
Lesik Andreas
Phillips Cory Bernard
Capitol City TechLaw PLLC
Duell Mark E.
FreeSlate, Inc.
Honda Giken Kogyo Kabushiki Kaisha
Silverman Stanley
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