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2. Liquefaction processes
To liquefy natural gas, the thermodynamic path followed is shown in figure 6 : the gas is cooled under pressure, then it reaches a zone where the gas and liquid phases coexist, then it becomes totally liquid under pressure, it is then sub-cooled, and finally expanded to be stored at approximately atmospheric pressure.
The various industrial processes used for this type of liquefaction are all based on compression-expansion cycles. The principle of these cycles is shown in figure 7 .
The refrigerant, compressed to a pressure sufficient to condense at the temperature of the available cold source, is expanded to vaporize....
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Liquefaction processes
Bibliography
Bibliography
- (1) - L'AIR LIQUIDE, Division scientifique - Encyclopédie des gaz. - Amsterdam, Elsevier (1976) http://encyclopedia.airliquide.com/encyclopedia.asp?CountryID=3=2 .
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World natural gas reserves
According to CEDIGAZ, proven reserves as of July 1 2008 amounted to 179.6 × 10 12 m 3 distributed as shown in the table 1 :...
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