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Configurations and methods for improved NGL recovery

  • US 7,051,552 B2
  • Filed: 11/07/2002
  • Issued: 05/30/2006
  • Est. Priority Date: 11/09/2001
  • Status: Expired due to Term
First Claim
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1. A plant comprising:

  • a feed cooler cooling a feed gas comprising water and C5(+) components, and a feed separator that removes at least some of the water and C5(+) components from the cooled feed gas;

    an intermediate separator fluidly coupled to the feed separator separating an at least partially dehydrated gas in to a C5(+) depleted gas and a C3(+) liquid;

    a turboexpander receiving at least part of the C5(+) depleted gas; and

    a refluxed stripper comprising an absorption section, a dehydration section, and a stripping section, and receiving a C5(+) liquid from the feed separator and further receiving the C3(+) liquid from the intermediate separator as a reflux.

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