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The World Market 
for Liquefied Natural Gas (LNG)

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About LNG Flow

Liquefied natural gas (LNG) is a vital method of transporting and storing natural gas in places where pipelines are not feasible. LNG is natural gas that has been cooled to around 260F (-162C), reducing the ordinary volume of natural gas by orders of magnitude: approximately one six hundredth of its gaseous form.

In some cases, gas in its liquid state is put aboard ships specially equipped to maintain the low temperature of the stored LNG.  These tankers can then efficiently transport huge quantities of natural gas in its LNG form to distant ports.  At the receiving area, these tankers unload their LNG cargo and it is returned to its gaseous form.  At this point, the natural gas is sent by the terrestial infrastructure to distribution companies, industrial consumers, power plants, or held in storage for future use.

Coriolis, differential pressure, turbine, and ultrasonic flowmeters are the technologies most often employed within this application.  Ultrasonic and Coriolis flowmeters have found competitive advantage here because of their accuracy and reliability, but equally because of their non-intrusive design.  Because their design does not impede the flow stream, higher throughput is available to operators at the same pipe diameters which might otherwise be equipped with turbine of differential pressure flowmeters.  Higher throughput means greater revenues per unit of time.

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