METHOD FOR TREATING A HYDROCARBON STREAM

摘要

The present invention relates to a method for treating a natural gas feed stream, containing > 10 mole% CO₂, the method at least comprising the steps of separating the feed stream (10) in a first (2) or a second (3) gas / liquid separator, removing from the top of the second gas / liquid separator (3) a gaseous stream (60), partially condensing it by heat exchanging against a cold stream (120) and feeding it (70) into a third gas / liquid separator (4) thereby obtaining a liquid stream (80) and a gaseous stream (90) and feeding the liquid stream (80) having a temperature above the freezing point of CO₂ at the prevailing conditions, into the second gas / liquid separator (3) removing from the bottom of the second gas / liquid separator (3) a liquid stream (100, 100a).