Kömür çeşitlerine göre, termal kömür (thermal coal) olarak genellikle turba, linyit ve alt bitümlü kömür türleri kullanılır Thermal coal , also known as steam coal , is used for power and heat generation. In electricity generation, thermal coal is ground to a powder and fired into a boiler to produce heat, which in turn converts water into steam. the steam is used to move turbines to generate electricity. They usually have high ash content ranging from as low as 20% to as high as high as 50%. In Indian coal industry the Non-Coking coal grades have been categorised into 17 bands according to their Gross Calorific Value. The G17 band has the lowest with 2200–2500 KCal/Kg . [1] As per ranks of the coal the Peat, Lignite and Sub-Bituminous ranges of coal are usually used as Thermal Coal. [2] [3] source- [4] Metallurgical coal/Coking Coal on the other hand is used in metallurgical process such as in smelting of Iron to make steel. They are usually used both as fuel and reducing agen...
