Coal
Coal
Coal is a combustible black or brownish-black sedimentary rock composed primarily of carbon, along with various other elements like hydrogen, sulfur, oxygen, and nitrogen. It forms from the remains of ancient plants that accumulated in swamp environments millions of years ago, subjected to heat and pressure over geological timescales.
Applications of Coal
Power Plants: Coal is the primary fuel used in thermal power plants to generate electricity. It is burned to produce steam, which drives turbines connected to generators.
Coke: Metallurgical coal is used to produce coke, a key component in the steelmaking process. Coke serves as both a fuel and a reducing agent in blast furnaces.
Heat and Power: Coal is used as a fuel for industrial processes that require large amounts of heat, such as cement manufacturing, paper production, and chemical processing.
Coal Derivatives: Coal can be processed into various chemical products, including methanol, ammonia, and synthetic fuels through coal gasification and liquefaction processes.
Activated Carbon: Coal is used to produce activated carbon, which is employed in water and air purification, as well as in various chemical and medical applications.
Clinker Production: Coal is used as a fuel in cement kilns to produce clinker, the main component of cement.
Home Heating: In some regions, coal is still used as a fuel for residential heating, although this application has decreased due to environmental concerns and the availability of cleaner alternatives.
Coal-to-Liquid (CTL) Technology: Coal can be converted into liquid fuels such as diesel and gasoline through CTL processes, providing an alternative to petroleum-based fuels.
Fly Ash: A by-product of coal combustion, fly ash is used as a supplementary material in concrete production, improving its strength and durability.
Home Heating: In some regions, coal is still used as a fuel for residential heating, although this application has decreased due to environmental concerns and the availability of cleaner alternatives.
Coal-to-Liquid (CTL) Technology: Coal can be converted into liquid fuels such as diesel and gasoline through CTL processes, providing an alternative to petroleum-based fuels.
Fly Ash: A by-product of coal combustion, fly ash is used as a supplementary material in concrete production, improving its strength and durability.
Derived from the distillation of coal, coal tar is used in the production of chemicals, as a waterproofing agent, and in the pharmaceutical industry.
Soil Amendment: Some forms of coal ash can be used to improve soil properties in agricultural applications.
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