Title:
NOx ADSORBER CATALYST
Document Type and Number:
Japanese Patent JP2022017270
Kind Code:
A
Abstract:
To provide a novel NOx adsorber catalyst improved in low-temperature NOx storage properties, NOx release properties, and desulfation properties.SOLUTION: A NOx adsorber catalyst for treating emissions from a lean burn engine includes a first layer including a composition including: a support material; one or more platinum group metals disposed on the support material; and a NOx storage material. The support material includes alumina or a mixed oxide containing alumina. The one or more platinum group metals include a mixture or alloy of platinum and palladium. The NOx storage material includes ceria. The support material or the NOx storage material includes a neodymium-containing component.SELECTED DRAWING: None
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Inventors:
ANDREW PAUL ARMITAGE
DESIREE DURAN-MARTIN
PAUL JAMES MILLINGTON
PHILLIPS PAUL RICHARD
RAJ RAO RAJARAM
STUART DAVID REID
DANIEL SWALLOW
DESIREE DURAN-MARTIN
PAUL JAMES MILLINGTON
PHILLIPS PAUL RICHARD
RAJ RAO RAJARAM
STUART DAVID REID
DANIEL SWALLOW
Application Number:
JP2021165143A
Publication Date:
January 25, 2022
Filing Date:
October 07, 2021
Export Citation:
Assignee:
JOHNSON MATTHEY PLC
International Classes:
B01J23/63; B01D53/94; B01J35/04; B01J37/04; B01J37/08; F01N3/08; F01N3/10; F01N3/28
Domestic Patent References:
| JP2010510884A | 2010-04-08 | |||
| JPH05261283A | 1993-10-12 |
Foreign References:
| WO2010053163A1 | 2010-05-14 |
Attorney, Agent or Firm:
Sonoda/Kobayashi Patent Business Corporation