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

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Coal

Nonresidential building

Energy; Coal

A building used for some purpose other than residential. Nonresidential buildings comprise three groups commercial, manufacturing/industrial, and agricultural.

Processing loss

Energy; Coal

The volumetric amount by which total refinery output is less than input for a given period of time. This difference is due to the processing of crude oil into products which, in total, have a higher ...

Scheduled outage

Energy; Coal

The shutdown of a generating unit, transmission line, or other facility for inspection or maintenance, in accordance with an advance schedule.

Tolling arrangement

Energy; Coal

Contract arrangement under which a raw material or intermediate product stream from one company is delivered to the production facility of another company in exchange for the equivalent volume of ...

No. 1 diesel fuel

Energy; Coal

A light distillate fuel oilthat has a distillation temperature of 550 degrees Fahrenheit at the 90-percent recovery point and meets the specifications defined in ASTM Specification D 975. It is used ...

Processing

Energy; Coal

Uranium-recovery operations whether at a mill, an in situ leach, byproduct plant, or other type of recovery operation.

Sample (coal)

Energy; Coal

A representative fraction of a coalbed collected by approved methods, guarded against contamination or adulteration, and analysed to determine the nature; chemical, mineralogic, and (or) petrographic ...