Heavy fuel oil
Heavy fuel oil is a viscous liquid fossil fuel obtained as a heavy fraction from crude oil refining. It is mainly used in large boilers, industrial furnaces, and power plants, where it is preheated before combustion to reduce viscosity and ensure efficient atomization. It is characterized by high energy density and storage stability, but also by higher sulphur and ash content compared to lighter liquid and gaseous fuels. Due to these properties, heavy fuel oil is typically applied in large energy systems and industrial facilities that require continuous and reliable supply of process heat, steam, and electricity.
Category
- Fossil fuels
- Liquid fuel for large boilers and industrial furnaces
- Non‑renewable energy source based on crude oil refining
Variations
- Different heavy fuel oil grades by viscosity and sulphur content (standard, low‑sulphur)
- Formulations adapted to climatic conditions and storage temperature
- Bulk delivery by trucks, ships, and rail tankers
- Blends with lighter fractions to adjust viscosity and flash point
Applications In The Industry
Energy systems
In energy systems, heavy fuel oil is used as a fuel in large steam boilers, thermal power plants, and district heating plants, providing electricity and heat generation. It is frequently applied in district heating systems and larger cogeneration plants, especially in locations where gaseous fuels are not reliably available. Typical applications are medium to large‑scale units with sizeable storage tanks, fuel preheating systems and advanced flue gas treatment (desulphurization, particulate filtration) to meet environmental regulations.
Industry
In industrial facilities, heavy fuel oil is used for process heat and steam generation in large boilers and furnaces, particularly in cement, metal, petrochemical and other energy‑intensive industries. Applications include heating of industrial kilns, dryers, reactors and other processes requiring high and continuous heat output. The fuel is stored in large heated tanks and burned in specialized burners for viscous liquid fuels, often integrated with consumption monitoring and energy efficiency optimization systems.
Benefits Of Use
- High energy density suitable for large energy and industrial installations
- Established supply chains and logistics (terminals, storage, bulk transport)
- Well suited for processes with high and constant demand for heat and steam
- Possibility to operate existing plants without full conversion to alternative fuels
Get a Quote
Fast ResponseWhy Choose Our Platform?
Unlock direct access to a global network of reliable suppliers. Through our platform you can source ingredients, polymers and specialty products from trusted producers with full transparency. Every product comes with clear documentation, and every supplier is checked for quality, compliance and consistency so you can focus on production, not on risk.