Zeolite with reduced extra-framework aluminum
US11633726B2 · kind B2 · utility
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10References
23Claims
0Family size
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Key dates
| Filing date | Mar 6, 2020 |
| Grant date | Apr 25, 2023 |
| Priority date | — |
| Expiry date | Mar 6, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present disclosure generally provides a catalyst composition comprising a zeolite containing iron and/or copper with a reduced amount of extra-framework aluminum. The catalyst composition is useful to catalyze the reduction of nitrogen oxides in exhaust gas in the presence of a reductant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.