发明名称 |
Catalytic article for treating exhaust gas |
摘要 |
Provided is a catalytic article comprising (a) a flow through honeycomb substrate having channel walls; (b) a first NH3-SCR catalyst composition coated on and/or within the channel walls in a first zone; and (c) a second NH3-SCR catalyst composition coated on and/or within the channel walls in a second zone, provided that the first zone is upstream of the second zone and the first and second zones are adjacent or at least partially overlap; and wherein the first NH3-SCR catalyst comprises a first copper loaded molecular sieve having a copper to aluminum atomic ratio of about 0.1 to 0.375 and the second NH3-SCR catalyst comprises a second copper loaded molecular sieve having a copper-to-aluminum atomic ratio of about 0.3 to about 0.6. |
申请公布号 |
GB2530129(B) |
申请公布日期 |
2016.10.26 |
申请号 |
GB20150008393 |
申请日期 |
2015.04.15 |
申请人 |
Johnson Matthey Public Limited Company |
发明人 |
Jane Gast;Tim Genschow;Mikael Larsson;Penelope Markatou;Gudmund Smedler;Olivier Sonntag;Andrew Walker;Lingzhi Zhang |
分类号 |
B01D53/94;B01D53/56;B01J23/72;B01J29/00;F01N3/20 |
主分类号 |
B01D53/94 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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