natural gas - определение. Что такое natural gas
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Что (кто) такое natural gas - определение

FOSSIL FUEL
Natural Gas; Swamp Gas; Natural-gas; Fossil-gas; Fossil gas; Piped natural gas; Gas-fired; Environmental impact of the natural gas industry; Gas production; Natural gas pollution; Natural gas extraction; Gas extraction; History of the natural gas industry; Non-associated petroleum gas
  • publisher=National Oceanographic and Atmospheric Administration (Global Monitoring Laboratory, Earth System Research Laboratories)}}</ref>
  • Natural gas processing plant in [[Aderklaa]], Lower Austria
  • Natural gas [[drilling rig]] in Texas, US
  • 300x300px
  • natural gas proven reserves]] (2014), based on data from The World Factbook
  • Gas network emergency vehicle responding to a major fire in [[Kyiv]], [[Ukraine]]
  • Manhole for domestic gas supply, London, UK
  • Natural gas burning on a gas stove
  • The location of [[shale gas]] compared to other types of gas deposits
  • Trends in the top five natural gas-producing countries (US EIA data)
  • A pipeline odorant injection station
  • access-date=2020-06-20}}</ref>
  • [[Peoples Gas]] Manlove Field [[natural gas storage]] area in [[Newcomb Township, Champaign County, Illinois]]. In the foreground (left) is one of the numerous wells for the underground storage area, with an LNG plant, and above ground storage tanks are in the background (right).
  • Schematic flow diagram of a typical natural gas processing plant
  • Comparison of natural gas prices in Japan, United Kingdom, and United States, 2007–2011
  • main]] being placed in a [[trench]]
  • A gas bill from [[Baltimore]], Maryland, 1834.
  • US Natural Gas Marketed Production 1900 to 2012 (US EIA data)
  • Metrobus]], which runs on natural gas
  • Natural gas extraction by countries]] in cubic meters per year around 2013

natural gas         
Natural gas is gas which is found underground or under the sea. It is collected and stored, and piped into people's homes to be used for cooking and heating.
N-UNCOUNT
Natural gas         
Natural gas (also called fossil gas or simply gas) is a naturally occurring mixture of gaseous hydrocarbons consisting primarily of methane in addition to various smaller amounts of other higher alkanes. Usually low levels of trace gases like carbon dioxide, nitrogen, hydrogen sulfide, and helium are also present.
natural gas         
¦ noun flammable gas, consisting largely of methane and other hydrocarbons, occurring naturally underground and used as fuel.

Википедия

Natural gas

Natural gas (also called fossil gas or simply gas) is a naturally occurring mixture of gaseous hydrocarbons consisting primarily of methane in addition to various smaller amounts of other higher alkanes. Low levels of trace gases like carbon dioxide, nitrogen, hydrogen sulfide, and helium are also usually present. Natural gas is colorless and odorless, so odorizers such as mercaptan (which smells like sulfur or rotten eggs) are commonly added to natural gas supplies for safety so that leaks can be readily detected.

Natural gas is a fossil fuel and non-renewable resource that is formed when layers of organic matter (primarily marine microorganisms) decompose under anaerobic conditions and are subjected to intense heat and pressure underground over millions of years. The energy that the decayed organisms originally obtained from the sun via photosynthesis is stored as chemical energy within the molecules of methane and other hydrocarbons.

Natural gas can be burned for heating, cooking, and electricity generation. It is also used as a chemical feedstock in the manufacture of plastics and other commercially important organic chemicals and less commonly used as a fuel for vehicles.

The extraction and consumption of natural gas is a major and growing contributor to climate change. Both the gas itself (specifically methane) and carbon dioxide, which is released when natural gas is burned, are greenhouse gases. When burned for heat or electricity, natural gas emits fewer toxic air pollutants, less carbon dioxide, and almost no particulate matter compared to other fossil and biomass fuels. However, gas venting and unintended fugitive emissions throughout the supply chain can result in natural gas having a similar carbon footprint to other fossil fuels overall.

Natural gas can be found in underground geological formations, often alongside other fossil fuels like coal and oil (petroleum). Most natural gas has been created through either biogenic or thermogenic processes. Biogenic gas is formed when methanogenic organisms in marshes, bogs, landfills, and shallow sediments anaerobically decompose but are not subjected to high temperatures and pressures. Thermogenic gas takes a much longer period of time to form and is created when organic matter is heated and compressed deep underground.

During petroleum production, natural gas is sometimes flared rather than being collected and used. Before natural gas can be burned as a fuel or used in manufacturing processes, it almost always has to be processed to remove impurities such as water. The byproducts of this processing include ethane, propane, butanes, pentanes, and higher molecular weight hydrocarbons. Hydrogen sulfide (which may be converted into pure sulfur), carbon dioxide, water vapor, and sometimes helium and nitrogen must also be removed.

Natural gas is sometimes informally referred to simply as "gas", especially when it is being compared to other energy sources, such as oil, coal or renewables. However, it is not to be confused with gasoline, which is often shortened in colloquial usage to "gas", especially in North America.

Natural gas is measured in standard cubic meters or standard cubic feet. The density compared to air ranges from 0.58 (16.8 g/mole, 0.71 kg per standard cubic meter) to as high as 0.79 (22.9 g/mole, 0.97 kg per scm), but generally less than 0.64 (18.5 g/mole, 0.78 kg per scm). For comparison, pure methane (16.0425 g/mole) has a density 0.5539 times that of air (0.678 kg per standard cubic meter).

Примеры употребления для natural gas
1. Nearly 650 oil and natural gas wells are operated there by the state–run Oil and Natural Gas Corp.
2. The gains in natural gas prices came ahead of today‘s release of US natural gas inventory data.
3. Natural gas and biogas Natural gas occurs in the crust of the earth, and mainly comprises methane.
4. Natural gas reserves off Indonesia, after being converted into liquefied natural gas, might be sold to China.
5. A rapid shift to natural gas Overall, 23 percent of America‘s electricity–generating capacity is fueled by natural gas.