Systems, methods and materials for NOx decomposition with metal oxide materials
US10549236B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2019 |
| Grant date | Feb 4, 2020 |
| Priority date | — |
| Expiry date | Jan 29, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2523/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Systems and methods use oxygen uncoupling metal oxide material for decomposition of NOx. A gaseous input stream comprising NOx is contacted with a metal oxide particle, generating nitrogen (N2) gas and an oxidized metal oxide particle. After contacting the first gaseous input stream with the metal oxide particle, a first gaseous product stream is collected. The first gaseous product stream includes substantially no NOx. A second gaseous input stream comprising at least one sweeping gas is also contacted with the oxidized metal oxide particle. After contacting the oxidized metal oxide particle, the sweeping gas includes oxygen (O2) and a reduced metal oxide particle is generated. Then a second gaseous product stream is collected, where the second gaseous product stream includes oxygen (O2) gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.