Catalyst for removing nitrogen oxides and method for removing nitrogen oxides using the same
US8318630B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Oct 29, 2008 |
| Grant date | Nov 27, 2012 |
| Priority date | — |
| Expiry date | Feb 23, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention provides a catalyst which can sufficiently remove nitrogen oxides in an exhaust gas. The catalyst for removing nitrogen oxides to achieve an object of the present invention includes a monolithic support which is coated with a lower layer containing a catalytic component A comprising cerium oxide and an upper layer containing a catalytic component B comprising at least one kind of metal selected from a group consisting of copper, manganese, iron, cobalt and nickel or a compound thereof, and zeolite.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.