• Title/Summary/Keyword: 폴리이미드

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A Study on the Permeance Through Polymer Membranes and Selectivity of $CH_4/N_2$ (폴리이미드와 폴리이써설폰 분리막을 이용한 $CH_4/N_2$의 투과선택도 특성)

  • Park, Bo-Ryoung;Kim, Dae-Hoon;Lee, Gang-Woo;Hwang, Taek-Sung;Lee, Hyung-Keun
    • Korean Chemical Engineering Research
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    • v.49 no.4
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    • pp.498-504
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    • 2011

  • In this research, hollow fiber membranes were used in order to investigate to permeation and selectivity of the $CH_4$ and $N_2$. 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 $CH_4$ and $N_2$ were increased with pressure and temperature. However, the selectivity was decreased with increasing temperature. The permeances of $CH_4$ and $N_2$ 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.

  • https://doi.org/10.9713/kcer.2011.49.4.498 인용 PDF KSCI