Catalysts for treating transient NOx emissions
US9815048B2 · kind B2 · utility
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12Claims
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Key dates
| Filing date | Apr 10, 2017 |
| Grant date | Nov 14, 2017 |
| Priority date | — |
| Expiry date | Apr 10, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A heterogeneous catalyst article having at least one combination of a first molecular sieve having a medium pore, large pore, or meso-pore crystal structure and optionally containing a first metal, and a second molecular sieve having a small pore crystal structure and optionally containing a second metal, and a monolith substrate onto or within which said catalytic component is incorporated, wherein the combination of the first and second molecular sieves is a blend, a plurality of layers, and/or a plurality of zones.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.