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Process and device for liquefying and for processing a natural gas

  • US 5,718,126 A
  • Filed: 10/08/1996
  • Issued: 02/17/1998
  • Est. Priority Date: 10/11/1995
  • Status: Expired due to Term
First Claim
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1. A process for liquefying a fluid consisting at least partly of a mixture of hydrocarbons, comprising:

  • introducing said mixture into a first zone;

    cooling said mixture in said first zone under pressure to condense said mixture at least partly to produce a liquid phase and a gas phase, bringing into contact at least a fraction of said liquid phase and gas phase in a countercurrent flow in said first zone so as to obtain, by matter transfer, a gas phase enriched in light hydrocarbons and a first liquid phase enriched in heavy hydrocarbons; and

    sending the gas phase enriched in light hydrocarbons to a second cooling stage and cooling the gas phase enriched in light hydrocarbons so as to obtain a second liquid phase enriched in light hydrocarbons.

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