Drop-in fuel for reducing emissions in compression-ignited engines
US11365364B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 7, 2020 |
| Grant date | Jun 21, 2022 |
| Priority date | — |
| Expiry date | Oct 7, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P30/40
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A fuel formulation having a derived cetane number of at least 35 includes a petroleum fraction and a polyoxymethylene dimethyl ether (OMEx) oligomer mix. The petroleum fraction includes a naphtha fraction with a boiling point in the range from 30° C. to 178° C. The polyoxymethylene dimethyl ether oligomer mix has the general formula H3CO—(CH2O)n—CH3 in which n is between 2 and 7, inclusive. A related method for reducing emissions in a compression-ignited engine includes preparing the fuel formulation having a derived cetane number of at least 35 and combusting the fuel formulation in the compression-ignited engine in place of a diesel fuel, thereby reducing emission of at least one of NOx, CO2, or particulates from the compression-ignited engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.