Cooling natural gas to about −163°C (-260°F) at normal pressure results in the condensation of the gas into liquid form, known as Liquefied Natural Gas (LNG).
LNG can be very useful, particularly for the transportation of natural gas, since LNG takes up about one six hundredth the volume of gaseous natural gas, similar to reducing the volume of a beach ball to the volume of a ping-pong ball.
While LNG is reasonably costly to produce, advances in technology are reducing the costs associated with the liquefaction and re-gasification of LNG. Because it is easy to transport, LNG can serve to make economical those stranded natural gas deposits, for which the construction of pipelines is uneconomical.
Production Process
When natural gas is extracted from underground reservoirs, it often contains other materials and components, such as those listed below, that must be removed before the gas can be liquefied and used by the consumer.
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