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 platinum-free ruthenium-cobalt water gas shift ("WGS") catalyst, in the
presence of water and preferably at a temperature of less than about
450.degree. C., to produce a hydrogen-rich gas, such as a hydrogen-rich
syngas. Also disclosed is a platinum-free ruthenium-cobalt water gas
shift catalyst formulated from: a) Ru, its oxides or mixtures thereof,
b) Co, Mo, their oxides or mixtures thereof, and c) at least one of Li,
Na, K, Rb, Cs, Ti, Zr, Cr, Fe, La, Ce, 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, zeolite, perovskite, silica clay, yttria and iron
oxide. Fuel processors containing such water gas shift catalysts are also
disclosed.