ash of dry coal

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• Coal bed methane extraction — (CBM extraction) is a method for extracting methane from a coal deposit. Contents 1 Basic principles 2 Areas with coal bed methane extraction 3 Measuring the gas content of coal …   Wikipedia

• Coal upgrading technology — refers to a class of technologies developed to remove moisture and certain pollutants from low rank coals such as sub Bituminous coal and lignite (brown coal) and raise their calorific values. Companies located in Australia, Germany and the… …   Wikipedia

• Coal liquefaction — is the process of producing synthetic liquid fuels from coal. Contents 1 Methods 1.1 Pyrolysis and carbonization processes 1.2 Hydrogenation processes 1.3 …   Wikipedia

• coal utilization — Introduction        combustion of coal or its conversion into useful solid, gaseous, and liquid products. By far the most important use of coal is in combustion, mainly to provide heat to the boilers of electric power plants. Metallurgical coke… …   Universalium

• Coal breaker — A coal breaking plant, depicted on a postcard in 1907. A coal breaker was a coal processing plant which broke coal into various useful sizes. Coal breakers also removed impurities from the coal (typically slate) and deposited them into a culm… …   Wikipedia

• Dry Fork Mine — Dry Fork Location State Wyoming Country   …   Wikipedia

• Coal — Sedimentary Rock Anthracite coal Composition Primary carbon Secondary hydrogen, sulfur …   Wikipedia

• coal mining — Coal was very important in the economic development of Britain. It was used as fuel in the factories built during the Industrial Revolution and continued to be important until the 1980s. The main coalfields are in north east England, the north… …   Universalium

• 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

• Coal analysis —   Determines the composition and properties of coal so it can be ranked and used most effectively.   • Proximate analysis, determines, on an as received basis, the moisture content, volatile matter (gases released when coal is heated), fixed… …   Energy terms

• ash — {{11}}ash (1) powdery remains of fire, O.E. æsce ash, from P.Gmc. *askon (Cf. O.N., Swed. aska, O.H.G. asca, Ger. asche, Goth. azgo ashes ), from PIE root *as to burn, glow (Cf. Skt. asah ashes, dust, Armenian …   Etymology dictionary