×

Configurations And Methods For Improved Natural Gas Liquids Recovery

  • US 20100206003A1
  • Filed: 08/13/2008
  • Published: 08/19/2010
  • Est. Priority Date: 08/14/2007
  • Status: Active Grant
First Claim
Patent Images

1. A method of recovering natural gas liquids from natural gas, comprising:

  • feeding a vapor portion of a cooled feed gas in a first column to thereby form a first column bottom product and a first column overhead product, and providing alternate first and second reflux streams to the first column;

    feeding the first column bottom product to a second column to thereby produce a second column overhead and a second column bottom product;

    compressing the first column overhead product and expanding a portion of the compressed first column overhead product;

    using the expansion of the compressed first column overhead product to provide cooling to the feed gas when the second column overhead is used as the second reflux stream, and using the expansion of the compressed first column overhead product to provide cooling to the first column when the portion of the first column overhead product is used as the first reflux; and

    using expansion of the second column overhead product to provide cooling to the first column.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×