Membrane Journal (멤브레인)

The Membrane Society of Korea (한국막학회)
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Pyrolytic Carbon Membranes for Air Separations

공기 분리용 열분해 탄소막

  • Singh, Anshu (Department of Chemical Engineering, University of Texas at Austin) ;
  • Koros, W.J. (Department of Chemical Engineering, University of Texas at Austin)
  • Published : 1997.04.01
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Abstract

Carbon molecular sieve (CMS) membranes were synthesized by the pyrolysis of polymeric precursors. The CMS materials had oxygen-nitrogen selectivities much higher than those observed for the polymeric precursors. Typically molecular sieving materials have diffusion selectivities much higher than polymeric materials. This has been identified as a result of higher entropic selectivity of the molecular sieving materials. A study of the development of molecular sieving properties as the polymeric precursor is pyrolyzed into a CMS material will offer us an insight into polymeric molecular structures needed for enhanced entropic selectivity membrane materials.

Keywords

References

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