Gas oil composition
US8624068B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 9, 2007 |
| Grant date | Jan 7, 2014 |
| Priority date | — |
| Expiry date | Nov 14, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L1/224
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention provides a gas oil composition for use in a diesel engine with a geometric compression ratio of 16 or less, equipped with a supercharger and an EGR, containing an FT synthetic base oil and having a sulfur content of 5 ppm by mass or less, an oxygen content of 100 ppm by mass or less, a bulk modulus of 1250 MPa or greater and 1450 MPa or less, a saybolt color of +22 or greater, a lubricity of 400 μm or less, an initial boiling point of 140° C. or higher and an end point of 380° C. or lower in distillation characteristics, and the following characteristics (1) to (3) in each fraction range wherein: (1) the cetane number in a fraction range of lower than 200° C. is 40 or greater and less than 60; (2) the cetane number in a fraction range of 200° C. or higher and lower than 280° C. is 60 or greater and less than 80; and (3) the cetane number in a fraction range of 280° C. or higher is 50 or greater. The gas oil composition is used in a summer or winter season, suitable for both diesel combustion and homogeneous charge compression ignition combustion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.