Liquefied natural gas

Liquefied natural gas
(LNG) is natural gas transformed into a liquid phase at a temperature below critical. LNG is a cryogenic fluid produced from natural gas by refrigeration down to condensation temperature −161.5°С. Temperature of crystallization is minus 182.5°С, density – 0.42 kilograms per liter. It is produced, stored and transported by specialized cryogenic equipment. The main LNG advantage is that the volume of gas is reduced 600 times. Practically, it means that the same volume contains 3 times more LNG than compressed natural gas (CNG) at 20 MPa pressure. For example, a 50 liter automobile gas cylinder in normal conditions and at 20 MPa pressure contains 10 to 12 cubic meters of natural gas in a gaseous phase, which is equal to 12 to 15 liters of gasoline. LNG is produced in liquefaction facilities by refrigeration and cryogenic cycles, including the use of energy from pressure difference at gas distribution stations (GDS) and at compressed natural gas (CNG) filling stations.

Glossary of Oil and Gas. 2013.

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  • Liquefied natural gas — Als Flüssigerdgas (Abkürzung LNG für engl. liquefied natural gas) bezeichnet man durch Abkühlung mittels Methan auf 161 bis 164°C (109 K bis 112 K) verflüssigtes Erdgas. LNG weist etwa 1/600stel des Volumens von Erdgas in Gasform auf. Besonders… …   Deutsch Wikipedia

  • liquefied natural gas — suskystintos gamtinės dujos statusas T sritis chemija apibrėžtis Suslėgtos ir atšaldytos (liquefied natural gas –140 °C) gamtinės dujos. atitikmenys: angl. liquefied natural gas rus. сжиженный природный газ …   Chemijos terminų aiškinamasis žodynas

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  • Liquefied Natural Gas — The liquefied state of natural gas, which is created by cooling the gas to about 260°fahrenheit. Energy companies change the state of natural gas into liquid form mainly for ease of transport. Natural gas in liquid form takes up about 1/600… …   Investment dictionary

  • Liquefied Natural Gas — (LNG)   Natural gas (primarily methane) that has been liquefied by reducing its temperature to 260 degrees Fahrenheit at atmospheric pressure.   U.S. Dept. of Energy, Energy Information Administration s Energy Glossary …   Energy terms

  • liquefied natural gas — noun a natural gas consisting primarily of methane, liquefied to facilitate transport and storage; usually later regasified and used as a fuel, etc. Abbrev.: LNG …  

  • liquefied natural gas — one of the natural fuels (propane, methane, etc.) that is made into a liquid by cooling it to extremely low temperatures, LNG …   English contemporary dictionary

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