Catalyst for direct NOx decomposition and a method for making and using the catalyst
US12161971B2 · kind B2 · utility
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14Claims
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Key dates
| Filing date | Oct 31, 2019 |
| Grant date | Dec 10, 2024 |
| Priority date | — |
| Expiry date | Feb 15, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02C20/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Catalyst material comprising a ternary spinel mixed oxide for treatment of an exhaust gas stream via direct decomposition removal of NOx to N2 and O2. The low temperature (from about 400° C. to about 650° C.), direct decomposition is accomplished without the need of a reductant molecule. In one example, Mn may be incorporated into metal oxide, such as CuyCo3-yO4 spinel oxide, synthesized using co-precipitation techniques.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.