Refrigeration – Cryogenic treatment of gas or gas mixture – Liquefaction
Patent
1998-06-18
2000-02-15
Doerrler, William
Refrigeration
Cryogenic treatment of gas or gas mixture
Liquefaction
62619, F25J 100
Patent
active
060239425
ABSTRACT:
This invention relates to a process for liquefying a gas stream rich in methane and having a pressure above about 3103 kPa (450 psia). The gas stream is expanded to a lower pressure to produce a gas phase and a liquid product having a temperature above about -112.degree. C. (-170.degree. F.) and a pressure sufficient for the liquid product to be at or below its bubble point. The gas phase and the liquid product are then phase separated in a suitable separator, and the liquid product is introduced to a storage means for storage at a temperature above about -112.degree. C. (-170.degree. F.).
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Bowen Ronald R.
Cole Eric T.
Kimble Edward L.
Thomas Eugene R.
Doerrler William
Exxon Production Research Company
Lawson Gary D.
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