Performance Enhancement of a Catalyst via Exhaust Gas Hydrogen Enrichment
Патенты
| Язык: |
Английский |
| Тип: |
Патент на изобретение |
| Номер (11) |
US US12416254 B2 |
| Номер заявки (21): |
18/024833 |
| Дата подачи заявки (22): |
7 сент. 2021 г. |
| Дата начала отсчета срока действия патента (24): |
|
| Дата публикации патента (44,45,46): |
16 сент. 2025 г. |
| Дата публикации заявки (43): |
29 авг. 2024 г. |
The disclosure provides a system for treating an exhaust gas stream from a gasoline engine. The system is configured to introduce controlled quantities of hydrogen gas into the exhaust gas stream upstream of a catalyst article during a cold-start period. Further provided are related methods of treating such exhaust streams. Such systems and methods are useful in reducing a level of one or more of hydrocarbons, carbon monoxide, and nitrogen oxide in a gaseous exhaust stream from a gasoline engine.