Ammonia slip catalyst with in-situ PT fixing
US11712685B2 · kind B2 · utility
1Cited by
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20Claims
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Key dates
| Filing date | Mar 25, 2021 |
| Grant date | Aug 1, 2023 |
| Priority date | — |
| Expiry date | Mar 25, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to a catalytic article comprising a substrate having an inlet and an outlet; a first coating comprising a blend of: (1) platinum on a support, and (2) a first SCR catalyst comprising a Cu- and Mn-exchanged molecular sieve; and a second coating comprising a second SCR catalyst; wherein the support comprises at least one of a zeolite or a SiO2-Al2O3 mixed oxide. The platinum may be fixed on the support in solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.