Catalysts for low-temperature destruction of volatile organic compounds in air

Catalyst compositions for destruction of volatile organic carbons (VOCs) in an oxygen-containing gas stream at low temperatures comprising: one or more first metals selected from the group consisting of: Ce and Zr; and at least one of: (a) one or more second metals selected from the group consisting...

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Bibliographic Details
Main Authors WHITE JAMES H, ROARK SHANE E
Format Patent
LanguageEnglish
Published 01.10.2002
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 for destruction of volatile organic carbons (VOCs) in an oxygen-containing gas stream at low temperatures comprising: one or more first metals selected from the group consisting of: Ce and Zr; and at least one of: (a) one or more second metals selected from the group consisting of: Gd, La, Sr and Sc; (b) one or more third metals selected from the group consisting of: Ti, V, Mn, Fe, Co, Cr, Ni, Au, Ag and Cu; and (c) one or more fourth metals selected from the group consisting of Pt, Pd, Rh, Ru, Re, Os and Ir are provided. Catalyst compositions provided may be single-phase, mixed-metal oxides, or multi-phase. Catalysts of this invention have improved activity for VOC reduction at low temperatures in gaseous systems.
Bibliography:Application Number: US19990468034