Mazut is a thick, dark, and highly viscous heavy fuel oil (HFO) derived as a residual product during the crude oil refining process. It is commonly used as an industrial fuel, especially for powering large boilers, furnaces, and thermal power plants. With a high British Thermal Unit (BTU) output, Mazut offers a reliable and energy-dense solution for commercial heating and power generation applications.
Power Generation: Used in thermal power plants to produce steam for electricity.
Industrial Boilers: An ideal fuel for large-scale boilers requiring high heat intensity.
Diesel Production: In the United States and parts of Europe, Mazut is processed further to produce diesel fuel.
Residential Heating: In Russia and many Eastern European and Central Asian countries, Mazut is used to heat homes and buildings due to its availability and cost-effectiveness.
Mazut is generally classified into four main categories based on viscosity and sulfur content:
Type
Viscosity Grade
Mazut M100
M100 (standard)
Mazut 180
180 CST
Mazut 280
280 CST
Mazut 380
380 CST
M100 GOST is a widely recognized standard, manufactured according to GOST (State Standard of the Russian Federation) specifications. This ensures consistent quality in terms of density, sulfur content, and combustion properties.
Sulfur Classification of Mazut M100
The primary grading factor for Mazut M100 is its sulfur content, which directly affects its environmental footprint, energy output, and regional market acceptability.
Grade
Sulfur Content
Very Low Sulfur
≤ 0.5%
Low Sulfur
0.5% – 1.0%
Normal Sulfur
1.0% – 2.0%
High Sulfur
2.0% – 3.5%
Very Low Sulfur Mazut is typically produced from light, sweet crude oils and is in high demand in regions with strict emission standards.
Mazut M100 is almost exclusively produced in:
Russian Federation
Iran
Kazakhstan
Azerbaijan
Turkmenistan
These countries possess the necessary refining infrastructure and crude oil characteristics suitable for efficient Mazut production.
