calcined anthracite coal

Calcined anthracite coal

Calcined anthracite as the deepest degree of coalification of coal, the most carbon content, ash content, moisture content is less, the calorific value is very high, up to 25000 ~ 32500 kj/kg, volatile release temperature is higher, the coke without adhesion, ignition and burnout are more difficult, smokeless during burning, the flame of the blue.

Coal sample under prescribed conditions from air heating, coal thermal decomposition of organic matter in the part of small molecular weight of liquid (state) at this time for steam and gas products, these products are called volatiles. The volatiles make up the fraction of the coal sample and become volatile. Coal is called anthracite, which is based on dry ash and less than 10% volatile. Non-anthracite coal, which is less than 6.5 per cent less than 10 per cent, is called anthracite 3.