Catalyst blends

Provided is a catalyst for selective catalytic reduction of NOx in a lean-burn exhaust gas comprising a 0.8 : 1.0 to 1.2 : 1.0 blend of a metal promoted aluminosilicate having a CHA structure and a metal promoted silicoaluminophosphate having a CHA structure, respectively, wherein the silicoaluminop...

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Bibliographische Detailangaben
Hauptverfasser:	Hai-Ying Chen, Joseph Michael Fedeyko, Debnath De, Alexander Nicholas Michael Green, Guy Richard Chandler, Shadab Sharif Mulla, Philip Gerald Blakeman, Wendy Manning
Format:	Patent
Sprache:	eng
Schlagworte:	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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Beschreibung
Zusammenfassung:	Provided is a catalyst for selective catalytic reduction of NOx in a lean-burn exhaust gas comprising a 0.8 : 1.0 to 1.2 : 1.0 blend of a metal promoted aluminosilicate having a CHA structure and a metal promoted silicoaluminophosphate having a CHA structure, respectively, wherein the silicoaluminophosphate is characterized by a higher promotion metal loading compared to the aluminosilicate.