CATALYSTS FOR TREATING TRANSIENT NOx EMISSIONS

A heterogeneous catalyst article having at least one combination of a first molecular sieve having a medium pore, large pore, or meso-pore crystal structure and optionally containing a first metal, and a second molecular sieve having a small pore crystal structure and optionally containing a second...

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Bibliographische Detailangaben
Hauptverfasser: CHANDLER Guy Richard, GREEN Alexander Nicholas Michael, MELVILLE Joanne Elizabeth, PHILLIPS Paul Richard, REID Stuart David
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A heterogeneous catalyst article having at least one combination of a first molecular sieve having a medium pore, large pore, or meso-pore crystal structure and optionally containing a first metal, and a second molecular sieve having a small pore crystal structure and optionally containing a second metal, and a monolith substrate onto or within which said catalytic component is incorporated, wherein the combination of the first and second molecular sieves is a blend, a plurality of layers, and/or a plurality of zones.