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Chabazite-type zeolite and method for producing the same, low-silica zeolite supporting copper, nitrogen oxide reduction and removal catalyst containing the zeolite, and nitrogen oxide reduction and removal method using the catalyst
Chabazite-type zeolite and method for producing the same, low-silica zeolite supporting copper, nitrogen oxide reduction and removal catalyst containing the zeolite, and nitrogen oxide reduction and removal method using the catalyst
The chabazite-type zeolite of the present invention has a SiO 2 /Al 2 O 3 molar ratio of less than 15, and an average particle size from 1.0 µm to 8.0 µm. The chabazite-type zeolite of the present invention has excellent durability and heat resistance, and the copper- loaded chabazite-type zeolite has an improved NOx reduction rate at low temperatures compared to conventional copper- loaded chabazite-type zeolite.
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机译:本发明的菱沸石型沸石的SiO 2 / Al 2 O 3摩尔比小于15,平均粒径为1.0μm〜8.0μm。本发明的菱沸石型沸石具有优异的耐久性和耐热性,并且与常规的铜负载菱沸石型沸石相比,负载铜的菱沸石型沸石在低温下具有提高的NOx还原率。
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