Thermal coal. 5,500 kcal is the calorific value of thermal coal, which refers to coal used as a raw material for power. Thermal coal in a narrow sense refers to coal used for thermal power generation, while thermal coal in a broad sense refers to coal used to generate power for the purpose of power generation, locomotive propulsion, boiler combustion, etc. What kind of coal is 5500 kcal?

Coal is a very important energy source and an important raw material for the metallurgical and chemical industries. It is mainly composed of carbon, hydrogen, oxygen, nitrogen, sulfur and phosphorus and other elements.

Coal can be divided into lignite, long-flame coal, non-stick coal, gas coal, gas-fat coal, fat coal, coking coal, lean coal, lean coal, lean coal, anthracite coal, etc.

The technological properties of coal mainly include caking, coking, calorific value, chemical reactivity, thermal stability, tar yield, selectability, etc.