Exhaust gas treatment system and model for controlling hydrocarbon adsorption/desorption in hydrocarbon trap
US12378908B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 9, 2024 |
| Grant date | Aug 5, 2025 |
| Priority date | — |
| Expiry date | May 9, 2044 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An exhaust gas treatment system including a hydrocarbon storage model; and a controller operably connected to the hydrocarbon storage model, the controller configured to execute a method for determining a hydrocarbon storage level of a hydrocarbon trap, the method comprising determining a first reaction rate representing a rate of hydrocarbon adsorption at non-acidic sites of the hydrocarbon trap; determining a second reaction rate representing a rate of hydrocarbon desorption at non-acidic sites of the hydrocarbon trap; determining a third reaction rate representing a rate of hydrocarbon adsorption at acidic sites of the hydrocarbon trap; determining a fourth reaction rate representing a rate of hydrocarbon desorption at acidic sites of the hydrocarbon trap; and determining the hydrocarbon storage level in the hydrocarbon trap based on the first reaction rate, the second reaction rate, the third reaction rate, and the fourth reaction rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.