Oxidation catalyst for internal combustion engine exhaust gas treatment
US8652429B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 5, 2012 |
| Grant date | Feb 18, 2014 |
| Priority date | — |
| Expiry date | Oct 5, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S502/52712
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention provides an exhaust gas cleaning oxidation catalyst and in particular to an oxidation catalyst for cleaning the exhaust gas discharged from internal combustion engines of compression ignition type (particularly diesel engines). The invention further relates to a catalysed substrate monolith comprising an oxidizing catalyst on a substrate monolith for use in treating exhaust gas emitted from a lean-burn internal combustion engine. In particular, the invention relates to a catalysed substrate monolith comprising a first washcoat coating and a second washcoat coating, wherein the second washcoat coating is disposed in a layer above the first washcoat coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.