Coke /coal

  A solid carbonaceous residue derived from low-ash, low-sulfur bituminous coal from which the volatile constituents are driven off by baking in an oven at temperatures as high as 2,000 degrees Fahrenheit so that the fixed carbon and residual ash are fused together. Coke is used as a fuel and as a reducing agent in smelting iron ore in a blast furnace. Coke from coal is grey, hard, and porous and has a heating value of 24.8 million Btu per ton.
  U.S. Dept. of Energy, Energy Information Administration's Energy Glossary

Energy terms . 2014.

Look at other dictionaries:

  • coke pore — n as used in Test Method D5061, a microscopically distinguishable void that is a structural element of coke. D5061 DISCUSSION Coke pores are considered to be nearly sphericalshaped voids created by the entrapment of gaseous volatiles during the… …   Coke&Coal Terminology

  • coke — a carbonaceous solid produced from coal, petroleum, or other materials by thermal decomposition with passage through a plastic state. • beehive coke by product coke coke breeze dry coke …   Coke&Coal Terminology

  • coal — n a brown to black combustible sedimentary rock (in the geological sense) composed principally of consolidated and chemically altered plant remains. DISCUSSION Conditions required for formation of coal are believed to include accumulation of… …   Coke&Coal Terminology

  • coke breeze — n the fine screenings from crushed coke or from coke as taken from the ovens, of a size varied in local practice but usually passing a 12.7 mm (1⁄2 in.) or 19.0 mm (3⁄4 in.) screen opening …   Coke&Coal Terminology

  • coke wall — n as used in Test Method D5061, a predominantly carbonaceous layer that encloses a coke pore and which is a structural element and essence of coke. D5061 …   Coke&Coal Terminology

  • coal seam — n the stratum, layer, or bed of coal that lies between two other rock layers whose compositions differ significantly from that of coal …   Coke&Coal Terminology

  • coal washability — n the determination of the theoretical limits for the removal of mineral impurities from coal by beneficiation processes that rely on specific gravity separations. D4371 • coarse coal …   Coke&Coal Terminology

  • coke reactivity — n as used in Test Method D5061, a measure of the mass loss when coke, held at a designated temperature, is contacted with gaseous carbon dioxide over a specific time interval. D5061 …   Coke&Coal Terminology

  • Coal gasification — is the process of producing coal gas, a type of syngas–a mixture of carbon monoxide (CO), hydrogen (H2), carbon dioxide (CO2) and water vapour (H2O)–from coal. Coal gas, which is a combustible gas, was traditionally used as a source of energy for …   Wikipedia

  • coal — [kōl] n. [ME & OE col, charcoal, live coal, akin to Ger kohle, ON kol < IE base * g(e)u lo , live coal > Ir gual] 1. a kind of dark brown to black, combustible, sedimentary rock resulting from the partial decomposition of vegetable matter… …   English World dictionary

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