Fuel composition with lubricity modifier
US12139680B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 18, 2023 |
| Grant date | Nov 12, 2024 |
| Priority date | — |
| Expiry date | Sep 18, 2043 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L2300/20
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The disclosure relates to fuel compositions comprising a base fuel, a lubricity modifier, and optional additives, and methods for using same. The base fuel is a middle distillate having a sulfur content of <500 ppm. The lubricity modifier comprises a plant-derived liquid decarboxylated rosin acid and optionally at least one of a fatty acid, a fatty acid derivative, and mixtures thereof. The decarboxylated rosin acid has a flash point of 95-180° C., a density of 0.9 to 1.0 g/cm3 at 20° C., a viscosity of 15 to 60 cSt at 40° C., and an acid value of <50 mg KOH/g. The fuel compositions have desired tribological properties, such as wear scar diameter, coefficient of friction, and percent film, as well as cloud point performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.