Membrane Gas/Liquid Contactors for Natural Gas Dehydration

摘要

This paper presents theoretical work and test results for membrane gas/liquid Contactors used for natural gas treatment. Background results for CO2 removal from exhaust gas is also given.Membrane gas/liquid contactors operate with liquid on one side of a membrane and gas on the other. Unlike gas separation membranes where differential pressure across the membrane provides the driving force for separation, here the pressure is essentially the same on both sides of the membrane. Absorption into the liquid provides the driving force. The membrane gas/liquid contactor?s increased specific area allows for a 65-75% reduction in weight and size compared to conventional towers. The latest work has been a gas dehydration field test at a Duke Energy Field Services compressor station in Colorado.