| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel oil C composition, while using a base material corresponding to changes in social conditions, evaluated by a new viewpoint without depending on conventional ISO standard values, and excellent in ignitability and combustibility.SOLUTION: A fuel oil C composition has ≤1.01 g/cmdensity (at 15°C), ≥10.0 mm/s dynamic viscosity (at 50°C), ≥1 mass% and ≤20 mass% residual carbon content, ≤10.0 mass% asphaltene content, ≤3.5 mass% sulfur content and ≥70 mass% aromatic content. The ≥4-ring aromatic content is preferably ≤30 mass%. Also the 4-ring aromatic content is preferably ≤21 mass%. Further, an estimated cetane value by IP541 method is preferably ≥15.0. |
