Characterizing Trace Elements Emissions

摘要

Coal consists of both organic and inorganic substances. The organic substances are metamorphosed from dead vegetation over thousands of years under various temperature and pressure conditions. The degree of metamorphism increases with time and temperature and determines the coal rank; increasing amounts of carbon result in peat, brown coal, lignite, sub-bituminous coal, bituminous coal, anthracite and diamond, which is pure carbon.