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Coal-water Slurry Fuel
Coal-water slurry fuel is a mixture of fine coal particles suspension (chemistry), suspended in water. Such slurries are used to transport coal. Typically, the slurry is dried prior to combustion. In principle but not in practice, coal slurries can be used to power boilers, gas turbines, diesel engines, and heating and power stations. Characteristics A coal-water slurry fuel is defined by a number of factors including its viscosity, particle size, rate of sedimentation, ignition temperature (), combustion temperature (), ash content and calorific value (). When coal-water slurry fuel combusts, over ninety-nine percent of its carbon content is consumed. Coal-water slurry fuel is fire-proof and explosion-proof. Ash content of less than ten percent is desirable for boilers. For diesel engines, there is no limit. Production The production of coal-water slurry fuel involves the crushing of coal or coal sludge to particles between 10 and 65 micrometers diameter (standard crush ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coal
Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams. Coal is mostly carbon with variable amounts of other Chemical element, elements, chiefly hydrogen, sulfur, oxygen, and nitrogen. Coal is a type of fossil fuel, formed when dead plant matter decays into peat which is converted into coal by the heat and pressure of deep burial over millions of years. Vast deposits of coal originate in former wetlands called coal forests that covered much of the Earth's tropical land areas during the late Carboniferous (Pennsylvanian (geology), Pennsylvanian) and Permian times. Coal is used primarily as a fuel. While coal has been known and used for thousands of years, its usage was limited until the Industrial Revolution. With the invention of the steam engine, coal consumption increased. In 2020, coal supplied about a quarter of the world's primary energy and over a third of its Electricity generation, electricity. Some iron and steel-maki ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brown Coal
Lignite (derived from Latin ''lignum'' meaning 'wood'), often referred to as brown coal, is a soft, brown, Combustion, combustible sedimentary rock formed from naturally compressed peat. It has a carbon content around 25–35% and is considered the Coal rank, lowest rank of coal due to its relatively low Heat of combustion, heat content. When removed from the ground, it contains a very high amount of moisture, which partially explains its low carbon content. Lignite is mined all around the world and is used almost exclusively as a fuel for steam-electric power generation. Lignite combustion produces less heat for the amount of carbon dioxide and sulfur released than other ranks of coal. As a result, lignite is the most harmful coal to human health. Depending on the source, various toxic heavy metals, including naturally occurring radioactive materials, may be present in lignite and left over in the coal fly ash produced from its combustion, further increasing health risks. Cha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
China Development Bank
China Development Bank (CDB) is a policy bank of China under the State Council. Established in 1994, it has been described as the engine that powers the national government's economic development policies.CDB History Archived It has raised funds for numerous large-scale infrastructure projects, including the and the . The bank is the second-largest [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Verkhovna Rada
The Verkhovna Rada ( ; VR), officially the Verkhovna Rada of Ukraine, is the unicameralism, unicameral parliament of Ukraine. It consists of 450 Deputy (legislator), deputies presided over by a speaker. The Verkhovna Rada meets in the Verkhovna Rada building in Ukraine's capital Kyiv. The Verkhovna Rada developed out of the systems of the republican representative body known in the Soviet Union as the Supreme Soviet (Supreme Council) that was first established on 26 June 1938 as a type of legislature of the Ukrainian Soviet Socialist Republic, Ukrainian SSR after the dissolution of the All-Ukrainian Congress of Soviets, Congress of Soviets of the Ukrainian SSR.Verkhovna Rada in the Encyclopedia of History of Ukraine The 12th convocation of the Supreme Soviet of the Ukrainian SSR (1990 Ukrainian parliamentary election, elec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
