发明名称 |
NO, ABSORBER CATALYST |
摘要 |
A NOx absorber catalyst comprising a substrate monolith coated with one or more washcoat layers and comprising a first component comprising a nitrogen oxide storage component, at least one precious metal and a dispersed rare earth oxide supported on a refractory support material, and a second component comprising a precious metal supported on a bulk reducible oxide that is substantially free of nitrogen oxide storage material, wherein the precious metal present in the second component comprises Pt, Pd or a combination of both Pt and Pd and wherein the bulk reducible oxide is an oxide, a composite oxide or a mixed oxide comprising at least one of manganese, iron, cobalt, copper, tin or cerium. |
申请公布号 |
EP2665545(A1) |
申请公布日期 |
2013.11.27 |
申请号 |
EP20110808296 |
申请日期 |
2011.12.21 |
申请人 |
JOHNSON MATTHEY PUBLIC LIMITED COMPANY |
发明人 |
BRISLEY, ROBERT JAMES;CAMM, KENNETH DAVID;FELIX, NOELIA CORTES;MCKENNA, FIONA-MAIREAD;MILLINGTON, PAUL JAMES;STEVENS, ELIZABETH HAZEL;SWALLOW, DANIEL |
分类号 |
B01D53/94;B01J23/00;B01J23/63;F01N3/08 |
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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