July 2010

Special Report: Liquefied Natural Gas Developments

Perfecting liquefied natural gas analysis techniques and methods

Following these procedures will improve measurement accuracy and reliability

Hale, S., Emerson Process Management

The nature of liquefied natural gas (LNG) raises many challenges when it comes to the measurement and reporting of its composition for the purpose of ship loading and unloading. LNG’s extreme temperature, and the difficulty with keeping it in liquid form, introduce unique sample-handling issues, while the batch-handling operation makes reporting difficult. At the same time, the accuracy and reliability of the LNG measurement is uniquely critical since the loading and unloading operations are highly time-sensitive with no second chances. Delays in loading or unloading because of measurement issues are not tolerable when the cost of keeping a ship in port is considered. For example, one L

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