×

Method to Produce LNG

  • US 20160061519A1
  • Filed: 04/14/2014
  • Published: 03/03/2016
  • Est. Priority Date: 04/15/2013
  • Status: Active Grant
First Claim
Patent Images

1. A method to produce Liquid Natural Gas (LNG), comprising:

  • passing a dewatered natural gas stream at pressures of between 700 psig and 1200 psig through one or more heat exchangers to pre-cool the natural gas stream;

    passing the pre-cooled natural gas stream through a gas column where natural gas liquid fractions and natural gas fractions are separated;

    passing the natural gas fractions at pressures of between 700 psig and 1200 psig through a gas treatment unit to remove carbon dioxide gas;

    passing the de-carbonized natural gas fractions at pressures of between 700 psig and 1200 psig through one or more heat exchangers to pre-cool the de-carbonized natural gas fractions;

    passing the de-carbonized natural gas fractions at pressures of between 700 psig and 1200 psig through a gas expansion apparatus where pressure of the de-carbonized natural gas fractions is lowered to a pressure of less than 100 psig; and

    passing the de-carbonized natural gas fractions at a pressure of less than 100 psig through a separator where the de-carbonized natural gas fractions are separated into an LNG stream and a natural gas stream at a pressure of less than 100 psig.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×