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PESf hollow fiber membrane was used to recover sulfur hexafluoride (SF6) from N2/SF6 binary mixture gas. To fabricate a hollow fiber membrane, a dry-wet phase inversion method was used. Fiber was post-treated by methanol to increase permeance. Fabricated membrane was characterized by scanning electron microscopy (SEM) and N2, SF6 single gas permeation according to temperature and pressure difference...
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