Zeolite having specific ratio of divalent copper ions supported thereon, and preparation method therefor and catalyst composition comprising same

Zeolite having specific ratio of divalent copper ions supported thereon, and preparation method therefor and catalyst composition comprising same

The present invention relates to zeolite containing Cu2+ (α) and Cu2+ (β) having different NO adsorption capacities loaded at a specific ratio, wherein the zeolite is chabazite (CHA)-type zeolite, particularly chabazite (CHA)-type zeolite loaded with divalent copper ions in which the NO adsorption a...

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1. Verfasser: HEESUNG CATALYSTS CORPORATION
Format: Patent
Sprache:eng
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Zusammenfassung:The present invention relates to zeolite containing Cu2+ (α) and Cu2+ (β) having different NO adsorption capacities loaded at a specific ratio, wherein the zeolite is chabazite (CHA)-type zeolite, particularly chabazite (CHA)-type zeolite loaded with divalent copper ions in which the NO adsorption area ratio of Cu2+ (α)/Cu2+ (β) after exposure to NO (nitrogen oxide) for 180 sec is 80% or more. In addition, the present invention relates to a method of preparing zeolite that is ion-exchanged in a slurry state and to a catalyst including the specified chabazite (CHA)-type zeolite.