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NGL Recovery from Natural Gas Using a Mixed Refrigerant

  • US 20120137726A1
  • Filed: 12/01/2011
  • Published: 06/07/2012
  • Est. Priority Date: 12/01/2010
  • Status: Active Grant
First Claim
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1. A process for recovering natural gas liquids (NGL) from a feed gas stream, said process comprising:

  • (a) cooling and at least partially condensing said feed gas stream via indirect heat exchange with a mixed refrigerant stream to thereby provide a cooled feed gas stream;

    (b) separating said cooled feed gas stream into a first residue gas stream enriched in methane and lighter components and a first liquid product stream enriched in C2 and heavier components in a first vapor-liquid separation vessel;

    (c) separating said first liquid product stream into a second residue gas stream and a second liquid product stream in a second vapor-liquid separation vessel; and

    (d) recovering at least a portion of said second liquid product stream obtained in step (c) as an NGL product stream.

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