No. 2 fuel oil is a standard grade of fuel oil, belonging to the category of heavy fuel oil. It is produced by processing cracked residual oil and straight-run residual oil from the petroleum refining process. Its appearance is typically a dark brown or brown viscous flammable liquid, characterized by low viscosity, high density, and high calorific value. The closed-cup flash point is not less than 38°C, and the kinematic viscosity at 40°C ranges from 1.9 to 3.4 mm²/s. It exhibits good atomization performance, complete combustion, and low corrosiveness. This fuel oil is primarily used in industrial combustion and heating equipment, such as marine boilers, industrial heating furnaces, metallurgical furnaces, and certain power plant facilities, providing thermal energy or power support for industrial production. Its production involves processes such as distillation and refining in petroleum refining, with quality conforming to relevant industry standards (e.g., SH/T 0356-1996). During storage and transportation, due to its flammability, dedicated facilities must be employed, kept away from ignition sources, and safety operating procedures must be strictly adhered to ensure safety.
