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Process for liquefaction of natural gas

  • US 6,023,942 A
  • Filed: 06/18/1998
  • Issued: 02/15/2000
  • Est. Priority Date: 06/20/1997
  • Status: Expired due to Term
First Claim
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1. A process for liquefying a gas stream rich in methane which comprises the steps of:

  • (a) providing the gas stream at a pressure above about 3103 kPa (450 psia);

    (b) expanding the gas stream to a lower pressure to produce a gas phase and a liquid product having a temperature above about -112°

    C. (-170°

    F.) and a pressure sufficient for the liquid product to be at or below its bubble point;

    (c) phase separating the gas phase and the liquid product; and

    (d) introducing the liquid product to a storage means for storage at a temperature above about -112°

    C. (-170°

    F.).

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