Petroleum Chemistry, Vol.54, No.8, 673-679, 2014
On the use of membrane technology for helium extraction from high-pressure natural gas
A numerical study of schemes for helium recovery from high-pressure natural gas using advanced gas separation membranes has been performed. It has been shown that the optimal scheme is a two-stage design with two recirculation circuits consisting of an ordinary separator in the first stage and a recirculation scheme as the second stage.
Keywords:gas separation membrane;recirculation circuit;recirculation scheme;ordinary membrane separator;helium;methane;natural gas;specific energy consumption