CATALYSTS AND METHODS FOR LOW-TEMPERATURE DESTRUCTION OF VOCs IN AIR AND SELECTIVE REMOVAL OF CO

Catalyst compositions are provided that are useful in selectively removing carbon monoxide from a hydrogen-containing gas. These catalyst compositions preferably have the formula: nN/Ce1-(x+y+z)AxA'yA''zO2-delta, where A, A', A'' are independently selected from the grou...

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Bibliographic Details
Main Authors ROARK, SHANE, E, WHITE, JAMES, H
Format Patent
LanguageEnglish
French
German
Published 09.10.2002
Edition7
Subjects
CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING ORPROTECTING AGAINST HARMFUL CHEMICAL AGENTS
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
COMPOUNDS THEREOF
FIRE-FIGHTING
HUMAN NECESSITIES
INORGANIC CHEMISTRY
LIFE-SAVING
METALLURGY
NON-METALLIC ELEMENTS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
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Summary:Catalyst compositions are provided that are useful in selectively removing carbon monoxide from a hydrogen-containing gas. These catalyst compositions preferably have the formula: nN/Ce1-(x+y+z)AxA'yA''zO2-delta, where A, A', A'' are independently selected from the group consisting of: Zr, Gd, La, Sc, Sr, Co, Cr, Fe, Mn, V, Ti, Cu and Ni; N is one or more members of the group consisting of: Pt, Pd, and Au; n is a weight percent between 0 and 25; x, y and z are independently 0 to 0.9; x+y+z is 0.1 to 0.9; and delta is a number which renders the composition charge neutral; or nN/(MOx)y(CeO2-delta)1-y, where M is one or more members of the group selected from: Zr, Co, Cr, Fe, Mn, V, Ti, Ni and Cu; N is one or more members of the group selected from: Pt, Pd, and Au; n is a weight percent between 0 and 25; y is 0.1 to 0.9; and x and delta make the compositions charge neutral.
Bibliography:Application Number: EP20000990956