subbituminous

subbituminous
sub·bituminous

English syllables. 2014.

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  • subbituminous coal — Dark brown to black coal, intermediate in rank between lignite and bituminous coal. It contains less water and is harder than lignite, making it easier to transport, store, and use. It has lower heating value than bituminous coal, but its sulfur… …   Universalium

  • Subbituminous coal —   A coal whose properties range from those of lignite to those of bituminous coal and used primarily as fuel for steam electric power generation. It may be dull, dark brown to black, soft and crumbly, at the lower end of the range, to bright, jet …   Energy terms

  • subbituminous class — n a class of rank consisting of subbituminous C coal, subbituminous B coal, and subbituminous A coal …   Coke&Coal Terminology

  • subbituminous A coal — n the rank of coal, within the subbituminous class of Classification D388, such that, on the moist, mineral matter free basis, the gross calorific value of the coal in British thermal units per pound is equal to greater than 10 500 (24.42 Mj/kg)… …   Coke&Coal Terminology

  • subbituminous B coal — n the rank of coal, within the subbituminous class of Classification D388, such that, on the moist, mineral matter free basis, the gross calorific value of the coal in British thermal units per pound is equal to greater than 9500 (22.10 Mj/kg)… …   Coke&Coal Terminology

  • subbituminous C coal — n the rank of coal, within the subbituminous class of Classification D388, such that, on the moist, mineral matter free basis, the gross calorific value of the coal in British thermal units per pound is equal to greater than 8300 (19.31 Mj/kg)… …   Coke&Coal Terminology

  • subbituminous — adjective Date: 1908 of, relating to, or being coal of lower rank than bituminous coal but higher than lignite …   New Collegiate Dictionary

  • subbituminous — |səb+ adjective Etymology: sub + bituminous : of, relating to, or being coal of lower rank than bituminous coal but higher than lignite …   Useful english dictionary

  • coal — coalless, adj. /kohl/, n. 1. a black or dark brown combustible mineral substance consisting of carbonized vegetable matter, used as a fuel. Cf. anthracite, bituminous coal, lignite. 2. a piece of glowing, charred, or burned wood or other… …   Universalium

  • brown coal — n. LIGNITE * * * ▪ coal classification       broad and variable group of low rank coals (coal) characterized by their brownish coloration and high (greater than 50 percent) moisture content. These coals typically include lignite and some… …   Universalium

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