公开(公告)号：US10603655B2

公开(公告)日：2020-03-31

申请号：US15938029

申请日：2018-03-28

申请人： JOHNSON MATTHEY PUBLIC LIMITED COMPANY

发明人： Guy Richard Chandler ,  Nuria Lastra-Calvo ,  Paul Richard Phillips ,  Jonathan Radcliffe ,  Stuart David Reid ,  Byron Truscott

IPC分类号： B01J23/63 ,  B01J35/00 ,  B01J35/04 ,  B01D53/94 ,  F01N3/08 ,  B01J37/02 ,  B01J37/03 ,  B01J37/00 ,  B01J35/02

摘要： A lean NOx trap catalyst and its use in an emission treatment system for internal combustion engines is disclosed. The lean NOx trap catalyst comprises a first layer, a second layer, and a third layer.

公开(公告)号：US10151227B2

公开(公告)日：2018-12-11

申请号：US15205020

申请日：2016-07-08

申请人： Johnson Matthey Public Limited Company

发明人： Andrew Armitage ,  Andrew Francis Chiffey ,  John Benjamin Goodwin ,  James Leeland ,  Nuria Lastra-Calvo ,  Francois Moreau ,  Paul Richard Phillips ,  Stuart David Reid ,  Daniel Swallow ,  David Xuereb

IPC分类号： F01N3/08 ,  B01D53/94 ,  F01N3/10 ,  B01J23/656 ,  B01J37/02 ,  B01J35/00 ,  B01J23/34 ,  B01J29/74 ,  B01J29/78 ,  B01J23/63 ,  B01J35/04 ,  B01D46/24 ,  B01J23/00

摘要： A catalyst for storing nitrogen oxides (NOx) in an exhaust gas from a lean burn engine comprising a NOx storage material and a substrate, wherein the NOx storage material comprises a NOx storage component and an NO oxidation promoter on a support material, wherein the NO oxidation promoter is manganese or an oxide, hydroxide or carbonate thereof.