Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Synthesis and Characterization of Zeolite Composite Membranes (II): Synthesis and $CO_2$ Separation Efficiency of ZSM-5 Zeolite Composite Membranes

제올라이트 복합 분리막의 합성 및 특성화(II): ZSM-5 제올라이트 복합막의 합성 및 $CO_2$ 분리 효율

  • 현상훈 (연세대학교 세라믹공학과) ;
  • 송재권 (연세대학교 세라믹공학과) ;
  • 김준학 (한국 특허청 심사 4국)
  • Published : 1997.07.01
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Abstract

ZSM-5 zeolite composite membranes have been synthesized from a silica sol solution containing TPABr as an organic template by the dip-coating and the pressurized-coating hydrothermal treatment techniques. The CO2 separation efficiency of synthesized composite membranes was also investigated. The permeation mechanism of CO2 through ZSM-5 membranses was the surface diffusion, and that of N2, O2, and He gases was Knudsen diffusion or activated diffusion depending on the synthetic method of membranes and the measurement temperature. The CO2/N2 separation factor of the membrane prepared by the dip-coating hydrothermal treatment was 2.5 at about 12$0^{\circ}C$, while the ZSM-5 composite membrane synthesized by the pressurized-coating hydrothermal treatment technique showed the CO2/N2 separation factor of 9.0 at room temperature higher than that ever reported in the literature.

Keywords

References

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