Helium separation using membrane technology: Recent advances and perspectives

Analysis of the Influence of Process Parameters on the Properties of Homogeneous and Heterogeneous Membranes for Gas Separation

“…In many cases, it is displacing other, more classical gas separation processes, such as adsorption, absorption, or cryogenic treatment. Using membrane techniques, good results are obtained in the separation of air components [ 2 , 3 , 4 ], biogas components [ 5 , 6 , 7 ], the separation of helium from natural gas [ 8 , 9 ], hydrogen recovery [ 10 , 11 , 12 ], natural gas sweetening [ 13 , 14 , 15 ], or air dehydration [ 16 ] and natural gas dehydration [ 17 , 18 ]. In order to improve the efficiency of the membrane process and to optimize the energy consumption of such a process, single or multi-stage plants are used, along with recirculation of selected streams [ 19 , 20 , 21 ].…”

A generalized numerical framework for solving cocurrent and counter-current membrane models for gas separation

“…Separation processes have gained critical attention in several important fields of science and engineering. In the oil and gas industries, membrane separation plays a crucial role in CO 2 removal from sour natural gas [ 1 ] and the recovery of hydrogen and helium [ 2 , 3 , 4 ]. In air separation, it is used for nitrogen production [ 5 ].…”

“…Among the various membrane systems, hollow fiber membrane (HFM) modules are widely used in the separation processes because of their high interfacial area, small size, high performance, and ease of fabrication [ 2 , 14 ]. HFMs consist of a large number of tubular fibers which are compactly placed in a cylindrical shell.…”

“…The permeate pressure is usually close to atmospheric or relative vacuum down to 0.3 bar [ 20 , 21 ]. Most of the researches have been carried out at room temperature since the increase in temperature causes a decrease in competitive gas transport through the membranes [ 2 ].…”

“…Most of the researches have been carried out at room temperature since the increase in temperature causes a decrease in competitive gas transport through the membranes [2].…”