Liquefied Natural Gas (LNG)
Abstract
This chapter provides information on fundamentals of the liquefied natural gas (LNG) process and technologies. LNG is formed when natural gas is cooled by a refrigeration process to temperatures of between −159 °C and −162 °C at atmospheric pressure and the gas condenses to a liquid. The gas in liquid form can then be carried economically by ships equipped with well-insulated tanks made from special steel. Generally, natural gas liquefaction plants consist of two main sections, pretreatment and liquefaction. In the pretreatment section, acidic gases (CO2 and H2S), water, mercury, and any other impurities that may solidify when natural gas is refrigerated are removed, and the liquefaction section removes ...
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