Back to results
US 11,091,714 B2Granted
Fuel oil “A” composition
AssigneeShell Oil Company
InventorsTsuyoshi Kashio, Ayumi Takahashi, Yasuyuki Komatsu
Life of this patent
Estimating the term…
Abstract
A fuel oil “A” composition wherein the density (15C) is 0.8400 to 0.8900 g/cm3, the kinematic viscosity at 50 C is not less than 2.000 mm2/s and the cetane index (old) is not less than 35, and also wherein the sulphur content is not more than 0.100 mass %, the sulphur content of sulphur compounds having a boiling point at or above the boiling point of dibenzothiophene is not more than 110 mass ppm, and the residual carbon content of 10% residual oil is not less than 0.20 mass %.
Claims11
A fuel oil “A” composition comprising:
- a sulphur content from 0.01 mass % to 0.1 mass %, wherein from 2 mass ppm to 110 mass ppm of the sulphur content has a boiling point at or above the boiling point of dibenzothiophene;
- a total aromatic component comprising
- at least 15 vol % of a bicyclic aromatic component and
- from 2 vol % to 8 vol % of a tricyclic aromatic component,
- wherein vol % is based on the volume of the total aromatic component and
- a residual carbon content of 10% residual oil at a content of no less than 0.2 mass %,
- wherein the fuel oil “A” composition has a density at a temperature of 15° C. measured in accordance with JIS K 2249 of 0.8400 to 0.8900 g/cm3,
- wherein the fuel oil “A” composition has a kinematic viscosity at 50° C. that is not less than 2.000 mm2/s, and
- wherein the fuel oil “A” composition has a cetane index obtained in accordance with JIS K 2204-1992 of not less than 35.
6 more elements
Dependencies are inferred from the claim text.