The heavy oil is usually used as fuel for the boiler and fire pot.
There is no de-sulfurization process for the heavy oil, so some specifications, e.g. sulfur and nitrogen, indicate a little high values compared to other oils such as kerosene and Diesel.
On the other hand, the geavy dil contains high caloric value of 10,000 ~ 11,000 Kacal / Kg compared with the coal’ls one of 5,000 ~ 7,000 Kacl / Kg.
The boiling point of heavy oil is as high value as above 360.
High viscosity and sulfur content. The viscosity is max 540 cSt at 50’C. The preheating is necessary prior to use.
The BC is mainly used in industrial factory.
| Bunker A | Bunker B | Bunker C | |
|---|---|---|---|
| Flash Point (℃) | Over 60 | Below 65 | Over 70 |
| Kinetic Vis (50℃, ㎟ / s) | Below 20 | Below 50 | Below 540 |
| Pour Point (℃) | Below 5.0 | Below 10.0 | – |
| CCR (wt%) | Below 8 | Below 12 | – |
| Water and Sediment(vol%) | Below 0.5 | Below 0.5 | Below 1.0 |
| Ash(wt%) | Below 0.05 | Below 0.10 | – |
| Sulfur (wt%) | Below 20. | Below 3.0 | Below 4.0 |
Bunker C 