8-ring small pore molecular sieve with promoter to improve low temperature performance
US8961914B2 · kind B2 · utility
6Cited by
9References
20Claims
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Key dates
| Filing date | Oct 17, 2013 |
| Grant date | Feb 24, 2015 |
| Priority date | — |
| Expiry date | Oct 17, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2257/404
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Described is a selective catalytic reduction catalyst comprising an 8-ring small pore molecular sieve promoted with copper and an alkaline earth component. The catalyst is effective to catalyze the reduction of nitrogen oxides (NOx) in the presence of a reductant. A method for selectively reducing nitrogen oxides is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.