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The article of manufacture and method of use including Ce-Zr-R-O Ce-Zr-R-O catalyst and a catalyst, 发明申请

2023-04-02 1360 150K 0

专利信息

申请日期 2025-07-10 申请号 JP2009533468
公开(公告)号 JP2010506724A 公开(公告)日 2010-03-04
公开国别 JP 申请人省市代码 全国
申请人 Umicore AG Co KG
简介 Disclosed herein are NOx reduction catalysts, particulate filters, exhaust treatment systems, and methods of treating a gas stream. In one embodiment, a NOx reduction catalyst comprises Cea-Zrb-Rc-Ad-Me-Ox. "R" is W and/or Mn. If "R" is W, "A" is selected from the group consisting of Mo, Ta, Nb, and combinations comprising at least one of the foregoing "A", and if "R" is Mn, A is selected from the group consisting of W, Mo, Ta, Nb, and combinations comprising at least one of the foregoing "A". "M" is a trivalent rare earth ion. a+b+c+d+e=1. "a" is about 0.1 to about 0.6; "b" is about 0.25 to about 0.7; "c" is about 0.02 to about 0.5; and if "R" is Mn, "d" is about 0.04 to about 0.2, and if "R" is W, "d" is less than or equal to about 0.2; while "e" is less than or equal to about 0.15. The NOx reduction catalyst is capable of reducing NOx.


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