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CONFIGURATIONS AND METHODS FOR NGL RECOVERY FOR HIGH NITROGEN CONTENT FEED GASES

  • US 20190154333A1
  • Filed: 01/29/2019
  • Published: 05/23/2019
  • Est. Priority Date: 09/20/2012
  • Status: Active Application
First Claim
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1. A NGL plant configured to convert from a propane recovery configuration to an ethane recovery configuration, the NGL plant comprising:

  • an absorber; and

    a fractionator,wherein the absorber is configured to produce an absorber overhead product and an absorber bottom product, wherein the fractionator is configured to produce a fractionator overhead product and a fractionator bottom product,wherein the absorber is configured to receive a vapor portion of the fractionator overhead product as a top reflux in the propane recovery configuration and to receive a stream comprising a first portion of a feed gas and a first portion of the absorber overhead product as the top reflux in the ethane recovery configuration;

    wherein the fractionator overhead product is configured to flow to a chiller in the propane recovery configuration and to a bottom of the absorber in the ethane recovery configuration; and

    wherein the absorber bottom product is configured to flow to a mid-section of the fractionator in the propane recovery configuration and to a top tray of the fractionator in the ethane recovery configuration.

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