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Mastering the Commodities Markets by Francesca Taylor

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Liquefied Natural Gas (Lng)

Natural gas is frequently cooled for ease of transportation and storage. It must be cooled to at least –162°C (–260°F) when it becomes liquefied natural gas, or LNG. It is clear, odourless, non-toxic and non-corrosive. Liquefaction takes place when natural gas is cooled under high pressure, condensed and then reduced in pressure for storage. The resulting liquid is 1/600th of the volume of natural gas, and about half as dense as water.

Mechanics of LNG production

There are a number of processes involved in LNG production:

  • Gas is purified by removing condensates such as water, oil and mud, as well as other gases such as CO2 and H2S.
  • Any trace amounts of mercury are also removed from the gas stream to prevent the mercury ...

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