sulfur coal

См. также в других словарях:

• High-sulfur coal —   Coal whose weight is more than one percent sulfur.   California Energy Comission. Dictionary of Energy Terms …   Energy terms

• Low-sulfur coal —   Coal having one percent or less of sulfur by weight.   California Energy Comission. Dictionary of Energy Terms …   Energy terms

• Coal mining in Kentucky — Coal was discovered in Kentucky in 1750. Since the first commercial coal mine opened in 1820 coal has gained both economic importance and controversy regarding its environmental consequences. As of 2010 there are 442 operating coal mines in the… …   Wikipedia

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

• Coal grade —   This classification refers to coal quality and use.   • Briquettes are made from compressed coal dust, with or without a binding agent such as asphalt.   • Cleaned coal or prepared coal has been processed to reduce the amount of impurities… …   Energy terms

• Sulfur —   A yellowish nonmetallic element, sometimes known as brimstone. It is present at various levels of concentration in many fossil fuels whose combustion releases sulfur compounds that are considered harmful to the environment. Some of the most… …   Energy terms

• coal classification — ▪ process  any of various ways in which coal is grouped. Most classifications are based on the results of chemical analyses and physical tests, but some are more empirical in nature. Coal classifications are important because they provide… …   Universalium

• 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 assay — Coal Analysis techniques are specific analytical methods designed to measure the particular physical and chemical properties of coals. These methods are used primarily to determine the suitability of coal for coking, power generation or for iron… …   Wikipedia

• Coal analyzer — Coal analyzers are used by coal producers, coal preparation plants and coal fired power plants to determine coal quality in real time. Coal quality parameters of greatest interest include ash, moisture, sulfur, and energy value (also known as… …   Wikipedia

• Coal sulfur —   Coal sulfur occurs in three forms: organic, sulfate, and pyritic. Organic sulfur is an integral part of the coal matrix and cannot be removed by conventional physical separation. Sulfate sulfur is usually negligible. Pyritic sulfur occurs as… …   Energy terms