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In this research, hollow fiber membranes were used in order to investigate to permeation and selectivity of the and . Polyimide and polyethersulfone hollow fiber membrane were prepared by the dry-wet phase inversion method and the module was manufactured by fabricating fibers after surface coating with silicone elastomer. The scanning electron microscopy (SEM) studies showed that the produced fibers typically had an asymmetric structure. The permeance of and were increased with pressure and temperature. However, the selectivity was decreased with increasing temperature. The permeances of and were decreased with increasing the air gap and the effect of post-treatment on membrane showed the increase in permeance up to 3.2~7.0 times.

A Study on the Permeance Through Polymer Membranes and Selectivity of CH4/N2

A Study on the Permeance Through Polymer Membranes and Selectivity of CH₄/N₂