Carbon forms more than 50 percent by weight and more than 70 percent by volume of coal (this includes inherent moisture). This is dependant on coal rank, with higher rank coals containing less hydrogen, oxygen and nitrogen, until 95% purity of carbon is achieved at Anthracite rank and above. Graphite formed from coal is the end-product of the thermal and diagenetic conversion of plant matter (50% b ...

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Coal, Coal - Etymology and folklore, Coal - Composition, Coal - Creation, Coal - Types of coal, Coal - Uses, Coal - Coal as fuel, Coal - Coking and use of coke, Coal - Harmful effects of coal burning, Coal - Coal fires, Coal - World coal reserves

Read more here: » Coal: Encyclopedia II - Coal - Composition

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Coal, Coal - Etymology and folklore, Coal - Composition, Coal - Creation, Coal - Types of coal, Coal - Uses, Coal - Coal as fuel, Coal - Coking and use of coke, Coal - Harmful effects of coal burning, Coal - Coal fires, Coal - World coal reserves

Read more here: » Coal: Encyclopedia II - Coal - Composition

It has been estimated that, as of 1996, there is around one exagram (1 × 1015 kg) of total coal reserves economically accessible using current mining technology, approximately half of it being hard coal. The energy value of all the world's coal is well over 100,000 quadrillion Btu (100 zettajoules). There probably is enough coal to last for 300 years. However, this estimate assumes no rise in population, and no increased use of coal to attempt to compensate for the depletion of natural gas and petroleum. A recent (2003) study by ...

See also:

Coal, Coal - Etymology and folklore, Coal - Composition, Coal - Creation, Coal - Types of coal, Coal - Uses, Coal - Coal as fuel, Coal - Coking and use of coke, Coal - Harmful effects of coal burning, Coal - Coal fires, Coal - World coal reserves

Read more here: » Coal: Encyclopedia II - Coal - World coal reserves

Coal is a fossil fuel extracted from the ground by underground mining or open-pit mining (strip mining). It is a readily combustible black or brownish-black sedimentary rock. It is composed primarily of carbon along with assorted other elements, including sulfur. Often associated with the Industrial Revolution, coal remains an enormously important fuel and is the largest single source of electricity world-wide. In the United States, for example, the burning of coal generates 50% of the electricity consumed. Coal - Etymol ...

Including:

Coal - Etymology and folklore Coal - Composition Coal - Creation Coal - Types of coal Coal - Uses
Coal - Coal as fuel Coal - Coking and use of coke Coal - Harmful effects of coal burning
Coal - Coal fires Coal - World coal reserves

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Coal is a fossil fuel extracted from the ground by underground mining or open-pit mining (strip mining). It is a readily combustible black or brownish-black sedimentary rock. It is composed primarily of carbon along with assorted other elements, including sulfur. Often associated with the Industrial Revolution, coal remains an enormously important fuel and is the largest single source of electricity world-wide. In the United States, for example, the burning of coal generates 50% of the electricity consumed. Coal - Etymol ...

Including:

Coal - Etymology and folklore Coal - Composition Coal - Creation Coal - Types of coal Coal - Uses
Coal - Coking and use of coke Coal - Harmful effects of coal burning
Coal - Coal fires Coal - World coal reserves

Read more here: » Coal: Encyclopedia - Coal

Syngas (from synthesis gas) is the name given to gases of varying composition that are generated in coal gasification and some types of waste-to-energy facilities. The name comes from their use in creating synthetic petroleum for use as a fuel or lubricant via Fischer-Tropsch synthesis. Syngas consists primarily of carbon monoxide and hydrogen, and has less than half the energy density of natural gas. It also contains some sulfur compounds, a safety feature since this allows for its detection in the case of leakage. Syngas can be produced from natural g ...

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Natural gas (commonly referred to as gas in many countries, but note that gas is also an American and Canadian shortening of gasoline) is a gaseous fossil fuel consisting primarily of methane. It is found in oil fields and natural gas fields, as well as—in smaller quantities—in coal beds. When methane-rich gasses are produced by the anaerobic decay of non-fossil organic material, these are referred to as biogas. Sources of biogas include swamps (swamp gas), marshes (marsh gas), landfills (landfill gas), sewage sludge and manure (by way of anaerobic d ...

Including:

Natural gas - Chemical composition and energy content
Natural gas - Chemical composition Natural gas - Energy content and statistics
Natural gas - Storage and transport Natural gas - Natural gas crisis Natural gas - Uses
Natural gas - Power generation Natural gas - Natural gas vehicles Natural gas - Residential domestic use Natural gas - Fertilizer Natural gas - Other
Natural gas - Sources
Natural gas - Possible future sources
Natural gas - Safety

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Relative density Relative density or specific gravity of the coal depends on the rank of the coal and degree of mineral impurity. Knowledge of the density of each coal ply is necessary to determine the properties of composites and blends. The density of the coal seam is necessary for conversion of resources into reserves. Relative density is normally determined by the loss of a sample's weight in water. This is best ach ...

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Coal assay, Coal assay - Chemical properties of coal, Coal assay - Physical and Mechanical Properties, Coal assay - Special Combustion Tests

Read more here: » Coal assay: Encyclopedia II - Coal assay - Physical and Mechanical Properties

Natural gas is commercially produced from oil fields and natural gas fields. Gas produced from oil wells is called casinghead gas or associated gas. Natural gas can also be produced by treating coal chemically, although coal gasification is not economic at current gas prices. The biggest natural gas field is located in Urengoy, Russia, with a reserve of 10.0 · 1012 m³. See also List of natural gas fields. Natura ...

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Natural gas, Natural gas - Chemical composition and energy content, Natural gas - Chemical composition, Natural gas - Energy content and statistics, Natural gas - Storage and transport, Natural gas - Natural gas crisis, Natural gas - Uses, Natural gas - Power generation, Natural gas - Natural gas vehicles, Natural gas - Residential domestic use, Natural gas - Fertilizer, Natural gas - Other, Natural gas - Sources, Natural gas - Possible future sources, Natural gas - Safety

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Natural gas - Power generation. Natural gas is important as a major source for electricity generation through the use of gas turbines and steam turbines. Particularly high efficiencies can be achieved through combining gas turbines with a steam turbine in combined cycle mode. Environmentally, natural gas burns cleaner than other fossil fuels, such as oil and coal, and produces fewer greenhouse gases. For an equivalent amount of heat, burning natural gas produces about 30% less carbon dioxide than burning petroleu ...

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Natural gas, Natural gas - Chemical composition and energy content, Natural gas - Chemical composition, Natural gas - Energy content and statistics, Natural gas - Storage and transport, Natural gas - Natural gas crisis, Natural gas - Uses, Natural gas - Power generation, Natural gas - Natural gas vehicles, Natural gas - Residential domestic use, Natural gas - Fertilizer, Natural gas - Other, Natural gas - Sources, Natural gas - Possible future sources, Natural gas - Safety

Read more here: » Natural gas: Encyclopedia II - Natural gas - Uses

Petroleum - Biogenic theory. Most geologists view crude oil, like coal and natural gas, as the product of compression and heating of ancient vegetation over geological time scales. According to this theory, it is formed from the decayed remains of prehistoric marine animals and terrestrial plants. Over many centuries this organic matter, mixed with mud, is buried under thick sedimentary layers of material. The resulting high levels of heat and pressure cause the remains to metamorphose, first into a waxy material ...

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Petroleum, Petroleum - Origin, Petroleum - Biogenic theory, Petroleum - Abiogenic theory, Petroleum - Composition, Petroleum - Extraction, Petroleum - Alternate means of producing oil, Petroleum - History, Petroleum - Environmental effects, Petroleum - Future of oil, Petroleum - Classification, Petroleum - Pricing, Petroleum - Top petroleum-producing countries, Petroleum - Books about the petroleum industry, Petroleum - Films about petroleum, Petroleum - Writers covering the petroleum industry

Read more here: » Petroleum: Encyclopedia II - Petroleum - Origin

$2.042 billion (c.i.f., 2002 est.) The main import commodities include: petroleum, cooking coal, machinery and equipment; consumer goods and grain. The main imports partners are: China 39.7%, Thailand 14.6%, Japan 11.2%, Germany 7.6%, South Korea 6.2%, Vietnam, and Cuba. (2002 est.) ...

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Economy of North Korea, Economy of North Korea - Colonial rule and postwar division, Economy of North Korea - Efforts at modernization, Economy of North Korea - North-South economic ties, Economy of North Korea - Economic ties with other countries, Economy of North Korea - GDP, Economy of North Korea - GDP - composition by sector, Economy of North Korea - Labour force, Economy of North Korea - Budget, Economy of North Korea - Industries, Economy of North Korea - Electricity - production, Economy of North Korea - Agriculture - products, Economy of North Korea - Exports, Economy of North Korea - Imports, Economy of North Korea - External debt, Economy of North Korea - Currency:

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The main industries are: military products; machine building, electric power, chemicals; mining (coal, iron ore, magnesite, graphite, copper, zinc, lead, and precious metals), metallurgy; textiles, food processing; tourism. Economy of North Korea - Electricity - production. 30.01 TWh (2003) Electricity - production by source: fossil fuel: 34.4% hydro: 65.6% nuclear: 0% as of 1998 Electricity - consumption: 29.91 TWh (2001) Electricity - exports: 0 kWh (1998) ...

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Economy of North Korea, Economy of North Korea - Colonial rule and postwar division, Economy of North Korea - Efforts at modernization, Economy of North Korea - North-South economic ties, Economy of North Korea - Economic ties with other countries, Economy of North Korea - GDP, Economy of North Korea - GDP - composition by sector, Economy of North Korea - Labour force, Economy of North Korea - Budget, Economy of North Korea - Industries, Economy of North Korea - Electricity - production, Economy of North Korea - Agriculture - products, Economy of North Korea - Exports, Economy of North Korea - Imports, Economy of North Korea - External debt, Economy of North Korea - Currency:

Read more here: » Economy of North Korea: Encyclopedia II - Economy of North Korea - Industries

Abiogenic petroleum origin - Supergiant oil fields. Russian geologist Nikolai Kudryavtsev was also a prominent and forceful advocate of the abiogenic theory. He argued that no petroleum resembling the chemical composition of natural crudes has ever been made from plant material in the laboratory under conditions resembling those in nature. He gave many examples of substantial and sometimes commercial quantities of petroleum being found in crystalline or metamorphic basements, or in sediments directly overl ...

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Abiogenic petroleum origin, Abiogenic petroleum origin - Comparison of theories, Abiogenic petroleum origin - Raw material, Abiogenic petroleum origin - Events before conversion, Abiogenic petroleum origin - Conversion to petroleum and methane, Abiogenic petroleum origin - Formation of coal, Abiogenic petroleum origin - Evidence supporting abiogenic theory, Abiogenic petroleum origin - Supergiant oil fields, Abiogenic petroleum origin - Extraterrestrial methane, Abiogenic petroleum origin - Existence of hydrocarbon deposits, Abiogenic petroleum origin - Methane on Earth, Abiogenic petroleum origin - Cold planetary formation, Abiogenic petroleum origin - Unusual deposits, Abiogenic petroleum origin - Deep microbes, Abiogenic petroleum origin - Helium, Abiogenic petroleum origin - Trace metals, Abiogenic petroleum origin - Diamondoids, Abiogenic petroleum origin - Hydrogen, Abiogenic petroleum origin - Thermodynamics, Abiogenic petroleum origin - Biology, Abiogenic petroleum origin - Serpentinization and chemical synthesis of oil, Abiogenic petroleum origin - Deep structures and petroleum association, Abiogenic petroleum origin - Why is oil frequently found in sedimentary basins?, Abiogenic petroleum origin - Ambiguous results, Abiogenic petroleum origin - Biomarkers or Chemofossils, Abiogenic petroleum origin - Deep hot carbon sources, Abiogenic petroleum origin - Evidence supporting biogenic theory, Abiogenic petroleum origin - Unusual deposits, Abiogenic petroleum origin - Biomarkers, Abiogenic petroleum origin - Petroleum origin peak oil and politics, Abiogenic petroleum origin - The future of the abiogenic theory

Read more here: » Abiogenic petroleum origin: Encyclopedia II - Abiogenic petroleum origin - Evidence supporting abiogenic theory

Coal - Coal as fuel. See also Clean coal Coal is primarily used as a solid fuel to produce heat through combustion. World coal consumption is about 5,800 million short tons (5.3 petagrams) annually, of which about 75% is used for electricity production. The region including China and India uses about 1,700 million short tons (1.5 Pg) annually, forecast to exceed 3,000 million short tons (2.7 Pg) in 2025. ^{See also:}

Coal, Coal - Etymology and folklore, Coal - Composition, Coal - Creation, Coal - Types of coal, Coal - Uses, Coal - Coal as fuel, Coal - Coking and use of coke, Coal - Harmful effects of coal burning, Coal - Coal fires, Coal - World coal reserves

Read more here: » Coal: Encyclopedia II - Coal - Uses

It has been estimated that, as of 1996, there is around one exagram (1 × 1015 kg) of total coal reserves accessible using current mining technology, approximately half of it being hard coal. The energy value of all the world's coal is well over 100,000 quadrillion Btu (100 zettajoules). There probably is enough coal to last for 300 years. However, this estimate assumes no rise in population, and no increased use of coal to attempt to compensate for the depletion of natural gas and petroleum. A recent (2003) study by scientist Gre ...

See also:

Coal, Coal - Etymology and folklore, Coal - Composition, Coal - Creation, Coal - Types of coal, Coal - Uses, Coal - Coal as fuel, Coal - Coking and use of coke, Coal - Harmful effects of coal burning, Coal - Coal fires, Coal - World coal reserves

Read more here: » Coal: Encyclopedia II - Coal - World coal reserves

There are hundreds of coal fires burning around the world.[8] Those burning underground can be difficult to locate and many can not be extinguished. Fires can cause the ground above to subside, combustion gases are dangerous to life, and breaking out to the surface can initiate surface wildfires. Coal seams can be set on fire by spontaneous combustion or contact with a mine fire or surface fire. A grass fire in a coal area can ...

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Coal, Coal - Etymology and folklore, Coal - Composition, Coal - Creation, Coal - Types of coal, Coal - Uses, Coal - Coal as fuel, Coal - Coking and use of coke, Coal - Harmful effects of coal burning, Coal - Coal fires, Coal - World coal reserves

Read more here: » Coal: Encyclopedia II - Coal - Coal fires

Coal is formed from plant remains that have been compacted, hardened, chemically altered, and metamorphosed by heat and pressure over geologic time. Coal was formed in swamp ecosystems which persisted in lowland sedimentary basins similar to the peat swamps of Borneo and Kalimantan today. These swamp environments were formed during slow subsidence of passive continental margins, and most seem to have formed adjacent to estuarine and marine sediments suggesting that they may have ...

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Coal, Coal - Etymology and folklore, Coal - Composition, Coal - Creation, Coal - Types of coal, Coal - Uses, Coal - Coal as fuel, Coal - Coking and use of coke, Coal - Harmful effects of coal burning, Coal - Coal fires, Coal - World coal reserves

Read more here: » Coal: Encyclopedia II - Coal - Creation

The word "coal" came from Anglo-Saxon col, which meant charcoal. Coal was not mined in Britain before the late Middle Ages; i.e. after ca. 1000 AD. Mineral coal was referred to as sea-coal, either because it was found on beaches occasionally having fallen from the exposed coal seams above or washed out of underwater coal seam outcrops, or because it was easier to transport by sea rather than on the very poor road system; in London, England there is still a Seacoal Lane (off the north side of Ludgate Hill) wh ...

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Coal, Coal - Etymology and folklore, Coal - Composition, Coal - Creation, Coal - Types of coal, Coal - Uses, Coal - Coal as fuel, Coal - Coking and use of coke, Coal - Harmful effects of coal burning, Coal - Coal fires, Coal - World coal reserves

Read more here: » Coal: Encyclopedia II - Coal - Etymology and folklore

Coal is formed from plant remains that have been compacted, hardened, chemically altered, and metamorphosed by heat and pressure over geologic time. Coal was formed in swamp ecosystems which persisted in lowland sedimentary basins similar, for instance, to the peat swamps of Borneo today. These swamp environments were formed during slow subsidence of passive continental margins, and most seem to have formed adjacent to estuarine and marine sediments suggesting that they may have ...

See also:

Coal, Coal - Etymology and folklore, Coal - Composition, Coal - Creation, Coal - Types of coal, Coal - Uses, Coal - Coal as fuel, Coal - Coking and use of coke, Coal - Harmful effects of coal burning, Coal - Coal fires, Coal - World coal reserves

Read more here: » Coal: Encyclopedia II - Coal - Creation