Catalytic system comprising antimony-containing catalyst
US12297760B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Sep 26, 2022 |
| Grant date | May 13, 2025 |
| Priority date | — |
| Expiry date | Sep 26, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A catalyst system for purifying an exhaust gas, comprising one or more antimony-containing regions comprising an antimony-containing catalyst, particularly antimony-containing SCR catalyst, and one or more antimony-trapping regions comprising a molecular sieve which is optionally metal-promoted, wherein at least one of the antimony-trapping regions is located downstream of the one or more antimony-containing regions in a flow direction of the exhaust gas, and also a method for treatment of an exhaust gas containing nitrogen oxides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.