Natural or synthetic gas that can be compressed and liquefied to use as a fuel.
(Also called marsh gas.) Colorless, inflammable gas of formula CH4; the simplest hydrocarbon. Methane enters the atmosphere as a result of the anaerobic decay of organic matter in, for example, swamps and rice paddies, and is also produced in large quantities by cattle and termites. It is formed along with coal and oil in fossil fuel deposits, and released to the atmosphere on mining. Methane is itself burned as a fuel, being the major constituent of natural gas. The atmospheric mixing ratio of methane is currently about 1.7 parts per million and has been rising gradually since the industrial era began. The atmospheric lifetime of methane is about eight years. As well as influencing the chemistry of the atmosphere, methane is a strong greenhouse gas and an important source of stratospheric water vapor, and it contributes to global warming.
The first member of the aliphatic hydrocarbon series having the chemical formula of CH4. Natural gas is primarily composed of Methane.
Methane is a colorless, flammable, nontoxic gas with a sweet, oil type odor. Methane is the simplest member of the paraffin series of hydrocarbons. It is lighter than air, having a specific gravity of 0.554. It is only slightly soluble in water. It burns readily in air, forming carbon dioxide and water vapor; the flame is pale, slightly luminous, and very hot. The boiling point of methane is -162.0° C (-259.6° F) and the melting point is -182.5° C (-296.5° F). Methane in general is very stable, but mixtures of methane and air, with the methane content between 5 and 14 percent by volume, are explosive. Explosions of such mixtures have been frequent in coal mines and collieries and have been the cause of many mine disasters.
hydrocarbon gas composed of carbon and hydrogen with a formula of CH4. It is lighter than air, colorless, odorless and flammable. It occurs in natural gas and as firedamp in coal mines. With the correct amount of oxygen present, methane ignites at 595°C. (1103°F).
The hydrocarbon with the lightest molecule. The first member of the paraffin (alkane) series - a gas under normal conditions.
A gaseous by-product of the breakdown of molecules that contain carbon. Most organisms, including humans, produce it.
A colourless, odourless, flammable gas that occurs abundantly in nature as the chief constituent of natural gas, as a component of firedamp in coal mines, and as a product of the decomposition of organic matter. Methane is used as a fuel and as a starting material in chemical synthesis.
a byproduct of anaerobic wastewater treatment. It can be collected as a gas and used as fuel.
the lightest hydrocarbon gas, CH
The lightest in the paraffin series of hydrocarbons. It is colorless, odorless and flammable; the major portion of marsh gas and natural gas.
A highly combustible gas with no smell or color. Methane is produced by solid waste as it decomposes.
A hydrocarbon compounds that is the major component of natural gas; the most common gas formed in coalmines.
A colorless, odorless, tasteless gas. Used as a fuel and for the production of methanol, acetylene, chloroform, methylene chloride and methyl chloride. Hazard: Simple asphyxiant, severe fire and explosion hazard.
a naturally occurring greenhouse gas. Methane is emitted during the production and transport of coal, natural gas, and oil. Methane emissions also result from the decomposition of organic wastes in landfills.
a light, gaseous, flammable paraffinic hydrocarbon that has a boiling point of -25 degrees F and is the chief component of natural gas and an important basic hydrocarbon for petrochemical manufacture.
The colorless gaseous hydrocarbon CH4.
an odourless, colourless, flammable gas CH4
also called marsh gas, is composed of one carbon molecule and four hydrogen molecules (CH4). It is lighter than air, colourless, odourless and flammable. Methane is produced wherever once-living materials decay. It is released from swamps, rice paddies, garbage in landfills, and burning forests. It is also produced by animals like cows during the digestive process. Since methane has 25 times the heat trapping capability of carbon dioxide, and since methane production is directly related to population growth, methane is a serious contributor to the greenhouse effect. [Jenson] However, it helps other chemicals to be released from coal mining, the production of petroleum products, and the use of natural gas.
the simplest hydrocarbon and the primary constituent of natural gas.
a colourless, odourless and tasteless gas, lighter than air, which reacts violently with chlorine and bromine in sunlight
The first of the paraffin series of hydrocarbons. The chief constituent of natural gas. Pure methane has a heating value of 1012 Btu per cubic foot.
(CH4). A natural gas that forms from the decay of organic matter.
A natural gas produced when plant or animal matter breaks down. It is one of the major greenhouse gases and can be collected to produce biomass energy.
An odorless, colourless, flammable gas, CH is the major constituent of natural gas.
A gas created by anaerobic decomposition of organic compounds. Natural gas is composed mostly of methane. Methane is a so-called greenhouse gas (see greenhouse effect). Agricultural wastes, especially animal wastes, are a major source of methane releases to the atmosphere.
A colorless, odorless gas formed naturally by the decomposition of organic matter.
CH4, a colorless, tasteless, odorless gas that reacts with chlorine in the presence of sunlight. Lighter than air.
A light, colorless, inflammable gas. It is a hydrogen compound in which every carbon atom is surrounded by four hydrogen atoms.
a gas that is colorless, odorless, flammable, and potentially dangerous. It is formed when organic matter decomposes and can be used as a fuel.
An odorless, colorless, flammable gas, the major constituent of natural gas. It is a major greenhouse gas that occurs naturally.
The simplest hydrocarbon and the first member of the paraffin (alkane) series, having a formula CH4. Methane is the major constituent of natural gas. Methane has a heating value of 1009 BTU/cubic foot. Its explosive limits are 5% to 15%.
A greenhouse gas that is primarily released from agricultural activities such as intensive livestock raising and flooding of rice paddies, and also from waste dumps, coal beds and leaks from gas pipelines.
An odourless, colourless hydrocarbon gas produced either by natural or artificial anaerobic decomposition of organic material.
A colorless flammable gas, which can be created by the decomposition of carbon-based materials.
gas (CH4), essential component of natural gas or firedamp. It is given off by putrefying matter
Also marsh gas, gas composed of carbon and hydrogen, first member of paraffin or alkane series of hydrocarbons. Methane contributed 12% (counting both direct and indirect global warming effects) of UK national greenhouse gas emissions in 1990. Oil and gas production accounted for 2% of national emissions in 1990.
a gas that is the waste product of anaerobic digestion.
a colorless, odorless, flammable gas formed by the anaerobic decomposition of organic waste in a landfill. Methane also is a greenhouse gas that contributes to global climate change. Many sanitary landfills have a system in place for methane gas recovery. These facilities collect some of the methane and sell it as a source of energy for heating buildings, manufacturing products, or other uses.
an odorless, colorless, flammable, explosive gas, CH,, produced by anaerobically decomposing MSW at landfills.
An odorless, colorless, combustible natural gas, often found in landfills, swamps, and marshes.
Formed by the decomposition of organic matter, it is the most common gas found in coal mines. It is a tasteless, colorless, nonpoisonous, and odorless gas; in mines the presence of impurities may give it a peculiar smell.
A simple hydrocarbon associated with petroleum. It is gaseous at ordinary atmospheric pressure. It is one of many hydrocarbons that makes up natural gas. Methane is the lightest and most abundant
The most common gas formed in coal mines; a major component of natural gas.
A gas created as a waste products of bacteria living with little oxygen, considered to be a greenhouse gas.
a colourless, odourless, toxic gas formed by decomposition
A hydrocarbon (CH4), which is colorless, odorless and lighter than air; the major component of natural gas
A colorless, nonpoisonous, flammable gas created by anaerobic decomposition of organic compounds.
A gas whose molecules consist of one carbon atom and four hydrogen atoms. Methane is a greenhouse gas. Each molecule of methane has a far greater greenhouse effect than each molecule of carbon dioxide. However, humans generate far less methane than carbon dioxide, so carbon dioxide is the most significant greenhouse gas.
A colorless, odorless inflammable gas ,the simplest paraffin hydrocarbon, formula CH4. It is the principle constituent of natural gas and is also found associated with crude oil See:- coal gas
Methane (CH4) is commonly known as natural gas. It is colorless and burns efficiently without many byproducts. Natural gas has odor added as a safety measure since it is naturally odorless.
CAS Number: 74-82-8. A colorless, odorless, flammable, gaseous hydrocarbon that is a product of decomposition of organic matter and of the carbonization of coal. It is used as a fuel and as a starting material in chemical synthesis, and is the simplest of the alkanes. Chemical formula = CH4. Molecular weight = 16 g/mol.
A colourless, non-poisonous, flammable gas created by anaerobic decomposition of organic com- pounds. A major component of natural gas used in the home.
The most common gas found in coal mines, it is flammable, tasteless, colourless, non-poisonous and odourless.
A colourless, odourless, flammable gas forming the major portion of natural gas.
A colorless gas which is a product of decomposing organic matter like cow manure.
a colorless, odorless, flammable gas with the chemical formula CH4. Methane is a component of landfill gas.
Methane is a greenhouse gas. The primary natural source of methane is the decay of plants, but, like carbon dioxide, the amount of methane in the atmosphere has increased significantly due to human activities including fossil fuel production, decay in landfills, and the digestive processes of farm animals.
CH4. A gas that contributes to the Greenhouse effect.
Methane (or CH4) is a greenhouse gas that is released from the waste in landfill sites and contributes to climate change .
(CH4) A colourless, odourless gas formed when organic matter anaerobically decomposes. Methane is about 20 times more effective than carbon dioxide as a greenhouse gas. Major sources include fermentation in ruminant animals, decay of organic material in rice paddies and landfill.
The principal constituent of natural gas.
the main component of natural gas. It also occurs in coal beds and is produced by animals and by the decay of vegetable matter. This is the smallest hydrocarbon molecule, with only one carbon atom and four hydrogen atoms.
The largest component of natural gas; consisting of one carbon atom and four hydrogen atoms, methane remains in a gaseous state at relatively low temperatures and pressures
The simplest hydrocarbon and the main component of natural gas; methane is also produced when organic matter decomposes.
A chemical compound made up of carbon and hydrogen produced as a by-product of anaerobic sewage treatment. Methane can be used as a fuel source for energy generation.
A gas byproduct generated through natural decomposition of solid waste in landfills. This gas is monitored to maintain state regulatory agency levels. Accumulated gas is either burned off using a flare or is converted to energy by use of a gas plant.
A clear gas, non-toxic to humans with a distinct odor. A greenhouse gas more effective than Carbon dioxide but found in a lesser concentration.
A colorless odorless flammable gaseous hydrocarbon (CH4) produced by decomposition of organic matter and carbonization of coal and is used as a fuel and starting material in chemical synthesis.
The most simple of the hydrocarbons; the major component of natural gas.
The lightest in the paraffin series of hydrocarbons. It is colorless, odorless and flammable; it forms the major portion of natural gas, CH4 (see "flammable (explosive) range").
Methane gas is the basic component of dry gas and is generated by decaying organic matter.
An odorless gas produced in newer landfills as organic material (previously living things or material derived from living things) breaks down. Methane production drops off as a landfill gets older.
A colorless naturally occurring and anthropogenically generated atmospheric greenhouse gas that contributes to the radiative warming of Earth ( cf. carbon dioxide).
A greenhouse gas that is emitted during the production and transport of coal, natural gas, and oil or from the decomposition of organic wastes in municipal solid waste landfills and the raising of livestock. Although CO2 is more prevalent in the atmosphere, methane is over 20 times more effective in trapping heat than CO2 over a 100-year period. For more information, visit EPA's Methane Web site.
a gas that makes up most of the gas giants.
An odorless, colorless, flammable gas, the major constituent of natural gas, and produced by a variety of natural sources.
CH4 is a colorless, flammable gas produced by natural processes, but there are also substantial emissions from human activities such as landfills, livestock and livestock wastes, natural gas and petroleum systems, coal mines, rice fields, and wastewater treatment. CH4 has a warming effect approximately 23 times that of CO2. Municipal solid waste landfills are the largest source of human-related methane emissions in the United States.
A gas given off by animal waste. It can be used as fuel, but the process to turn it into fuel is very expensive, so this is not done very often. Methane is a greenhouse gas, which means that it contributes to global warming.
A colorless, odorless, tasteless gas composed of one molecule of carbon and four of hydrogen. Highly flammable, it is the main constituent of "natural gas," which is used as a fuel and for manufacturing chemicals. The global warming potential of methane is 21. (Source: Adapted from U.S. Department of Energy)
A colourless, odourless flammable gas that is the main constituent of landfill gas. Chemical formula: CH4
emitted during transportation of coal, natural gas, and oil emissions are caused by decomposing of organic waste in land fills and the raising of livestock
A natural gas responsible for about 16% of green-house gasses.
A light hydrocarbon that is the main component of natural gas and marsh gas. It is the product of the anaerobic decomposition of organic matter, enteric fermentation in animals and is one of the greenhouse gases. The chemical formula is CH4.
The simplest hydrocarbon; natural gas is nearly pure methane.
The primary gas produced by decomposing trash in a landfill. It is a colorless and odorless gas that is lighter than air. It is highly flammable and explosive under certain conditions. Natural gas, such as used in stoves is methane with odorants added.
A gas given off by landfill sites which is both highly inflammable and a major contributor to global warming
CH4, a greenhouse gas that is produced through anaerobic decomposition of waste, animal digestion, and industrial processes.
Methane is an odorless gas produced by the decomposition of organic matter.
The principal component of natural gas.
(CH4) A fuel derived from the decomposition of plants; the main component of natural gas.
(CH4) - the simplest of the various hydrocarbons and the major component of natural gas. It is colorless, odorless, and burns efficiently without many by products.
A flammable gas that is the main constituent of "natural gas". Methane has the chemical formula CH4 and is used as a fuel and in manufacturing chemicals.
A hydrocarbon that is a greenhouse gas with a global warming potential most recently estimated at 21. Methane is produced through anaerobic (without oxygen) decomposition of waste in landfills, animal digestion, decomposition of animal wastes, production and distribution of natural gas and petroleum, coal production, and incomplete fossil fuel combustion. () Methane is responsible for about 17% of the human-induced greenhouse effect. In Canada, the main sources are fossil fuel production, farm animals and landfills. Natural gas is mainly methane. ()
CH4 is among the six greenhouse gases to be curbed under the Kyoto Protocol. Atmospheric CH4 is produced by natural processes, but there are also substantial emissions from human activities such as landfills, livestock and livestock wastes, natural gas and petroleum systems, coalmines, rice fields, and wastewater treatment. CH4 has a relatively short atmospheric lifetime of approximately 10 years, but its 100-year GWP is currently estimated to be approximately 23 times that of CO2.
A greenhouse gas with emissions coming from ruminant livestock, landfills, coal mining and other sources. For the purposes of the Kyoto Protocol it has a GWP of 21.
A greenhouse gas consisting of one molecule of carbon and four molecules of hydrogen. Pound-for-pound it produces between 5 to 10 times more warming than carbon dioxide. Methane is produced naturally from rotting organic matter. Human sources of methane include agricultural activities such as growing rice and raising live stock, land-fills, coal mines, and natural gas systems. Abbreviated CH4.
Methane is very strong greenhouse gas found in the atmosphere. Methane concentrations in the atmosphere have increased by more than 140 % since 1750. The primary sources for the additional methane added to the atmosphere (in order of importance) are: rice cultivation, domestic grazing animals, termites, landfills, coal mining, and oil and gas extraction. Chemical formula for methane is CH4.
A colorless, flammable, odorless hydrocarbon gas (CH4) which is the major component of natural gas. It is also an important source of hydrogen in various industrial processes. Methane is a greenhouse gas.
a potent greenhouse gas generated by biodegradation, for example in landfill sites
A hydrocarbon gas that is the main ingredient in natural gas.
Organic molecule consisting of carbon and hydrogen
A colorless, odorless, flammable gas consisting of the hydrocarbon (CH4) and resulting from the decay of vegetable matter or manure due to the action of anaerobic bacteria in swampy land, closed landfills, or sewage disposal plants.
A colorless and odorless gas that belongs to the alkane series of the hydrocarbons.
Odorless, colorless, flammable gas; component of natural gas and important source of hydrogen and organic compounds. Efficient anaerobic bacteria decompose sludge, manure or landfill wastes to produce methane. Some sewage plants collect methane to fuel generators, digesters and air compressors
Natural gas often used for home heating purposes.
Natural gas composed of 90% to 95% methane, a combustible hydrocarbon.
A colorless, odorless, tasteless gas composed of one molecule of Carbon and four of hydrogen, which is highly flammable. It is the main constituent of "natural gas" that is formed naturally by methanogenic, anaerobic bacteria or can be manufactured, and which is used as a fuel and for manufacturing chemicals.
The simplest gas molecule, consisting of one carbon atom surrounded by four hydrogen atoms