TYPES OF COAL
CONVENTIONAL SOURCE OF ENERGY-COAL TYPES OF COAL As geological processes apply pressure to dead biotic material over time, under suitable conditions, its metamorphic grade increases successively into: Peat , considered to be a precursor of coal, which has industrial importance as a fuel in some regions, for example, Ireland and Finland (In its dehydrated form, peat is a highly effective absorbent for fuel and oil spills on land and water, and also used as a conditioner for soil to make it more able to retain and slowly release water.) Lignite , or brown coal, the lowest rank of coal, used almost exclusively as fuel for electric power generation Jet , a compact form of lignite, sometimes polished...
