Catalysts for treating transient NOX emissions

The invention relates to 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...

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Bibliographic Details
Main Authors PHILLIPS PAUL RICHARD, CHANDLER GUY RICHARD, REID STUART DAVID, GREEN ALEXANDER NICHOLAS MICHAEL, MELVILLE JOANNE ELIZABETH
Format Patent
LanguageEnglish
Published 11.11.2015
Subjects
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
THEIR RELEVANT APPARATUS
TRANSPORTING
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Summary:The invention relates to 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 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.
Bibliography:Application Number: CN201510394460