Study of the process of separation of a Ne−He mixture on a quartz glass membrane

Abstract

The method of separation of a Ne-He mixture on a membrane made from quartz glass with the goal of obtaining a high-concentration of He is an alternative to the cryogenic method and has advantages such as relatively low production cost per unit product; simple separator module design; does not require cooling down to cryogenic temperatures.The basic problems in studies of this method are: determination of the effect of external parameters (the flow rate of

Anomalous Diffusion of Helium and Neon in Low-Density Silica Glass

“…This leads to significant operating costs [ 8 ], and as a consequence, the high price of pure neon. In this regard, non-cryogenic technologies for the separation of a helium–neon mixture represent an undoubted interest, in particular a membrane technology [ 9 ]. A comparative study of several helium–neon mixture separation technologies, including the membrane one, shows that the membrane technology has the minimum separation work, the maximum degree of thermodynamic perfection, and the maximum extraction factor [ 10 ].…”