Coal

Coal

Coal is a combustible black or brownish-black sedimentary rock usually occurring in rock strata in layers or veins called coal beds or coal seams. The harder forms, such as anthracite coal, can be regarded as metamorphic rock because of later exposure to elevated temperature and pressure. Coal is composed primarily of carbon along with variable quantities of other elements, chiefly hydrogen, sulfur, oxygen, and nitrogen.

Industry: Energy

Add a new term

Contributors in Coal

Become a Contributors

Coal

bitumen

Energy; Coal

A naturally occurring viscous mixture, mainly of hydrocarbons heavier than pentane, that may contain sulphur compounds and that, in its natural occurring viscous state, is not recoverable at a ...

bituminous coal

Energy; Coal

A dense coal, usually black, sometimes dark brown, often with well-defined bands of bright and dull material, used primarily as fuel in steam-electric power generation, with substantial quantities ...

black liquor

Energy; Coal

A by product of the paper production process, alkaline spent liquor, that can be used as a source of energy. Alkaline spent liquor is removed from the digesters in the process of chemically pulping ...

black lung benefits

Energy; Coal

In the content of the coal operation statement of income, this term refers to all payments, including taxes, made by the company attributable to Black Lung.

blast furnace

Energy; Coal

A furnace in which solid fuel (coke) is burned with an air blast to smelt ore.

blast-furnace gas

Energy; Coal

The waste combustible gas generated in a blast furnace when iron ore is being reduced with coke to metallic iron. It is commonly used as a fuel within steel works.

blending plant

Energy; Coal

A facility that has no refining capability but is either capable of producing finished motor gasoline through mechanical blending or blends oxygenates with motor gasoline.