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coal supplies

См. также в других словарях:

  • 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 depletion — is the inescapable result of extracting and consuming coal since it is a finite resource. The number of years of coal left is estimated by the ratio of proven coal reserves to the current consumption rate.When will coal run out?Assuming the… …   Wikipedia

  • 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 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|er — «KOH luhr», noun. 1. a ship, freight car, or railroad, used for carrying or supplying coal. 2. a worker or merchant who supplies coal …   Useful english dictionary

  • Coal gas — Towngas redirects here. For the company in Hong Kong trading as Towngas , see The Hong Kong and China Gas Company Limited. See also: Coal gasification and Coal seam gas Coal gas (also town gas and illumination gas) is a flammable gaseous… …   Wikipedia

  • History of coal mining — Due to its abundance, coal has been mined in various parts of the world throughout history and continues to be an important economic activity today. Compared to wood fuels, coal yields a higher amount of energy per mass and could be obtained in… …   Wikipedia

  • Clean coal — Historically[1] used to refer to technologies for reducing emissions of ash, sulfur, and heavy metals from coal combustion; the term is now commonly used to refer to carbon capture and storage (CCS) technology. Clean coal is an umbrella term used …   Wikipedia

  • Environmental effects of coal — There are a number of adverse environmental effects of coal mining and burning.These effects include: * release of carbon dioxide and methane, both of which are greenhouse gases causing climate change and global warming according to the IPCC.… …   Wikipedia

  • Underground coal gasification — (UCG) is an in situ gasification process carried out in non mined coal seams using injection and production wells drilled from the surface, which enables the coal to be converted into product gas. The process is flexible in operation and is… …   Wikipedia

  • Clean coal technology — This article is about technological innovations related to clean coal. For clean coal as a general concept, see clean coal. Clean coal technology is a collection of technologies being developed to reduce the environmental impact of coal energy… …   Wikipedia

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