Membrane Journal (멤브레인)

The Membrane Society of Korea (한국막학회)
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Separation of H2 and N2 Gases by PTMSP-NaA Zeolite Composite Membranes

PTMSP-NaA Zeolite 복합막에 의한 수소-질소 기체 분리에 관한 연구

  • Kim, Ok-Su (Department of Chemistry, Sang Myung University) ;
  • Yun, Seok Il (Department of Industrial Chemistry, Sang Myung University)
  • Received : 2015.01.05
  • Accepted : 2015.03.21
  • Published : 2015.04.30
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Abstract

PTMSP-NaA zeolite composite membranes were prepared by adding 0~50 wt% NaA zeolite to PTMSP. The membranes were characterized by FT-IR, $^1H$-NMR, GPC, DSC, TGA, SEM. The permeabilities of $H_2$ and $N_2$ gases through PTMSP-NaA zeolite composite membranes was studied as a function of NaA zeolite contents. According to TGA measurements, when zeolite was inserted into the polymer, weight loss temperature and weight loss wt% of PTMSP-NaA zeolite composite membranes were decreased. Based on SEM observation, NaA zeolite was dispersed in the PTMSP-NaA zeolite composite membrane with the size $2{\sim}5{\mu}m$. The permeability of PTMSP-NaA zeolite composite membranes increased added as NaA zeolite content increased. On the contrary, the selectivity ($H_2/N_2$) of the composite membranes decreased as NaA zeolite content increased. PTMSP-NaA zeolite composite membrane showed better permeability and selectivity ($H_2/N_2$) of $H_2$ and $N_2$ than PTMSP-NaY zeolite composite membrane.

PTMSP에 0~50 wt% NaA Zeolite를 첨가하여 PTMSP-NaA Zeolite 복합막을 제조하고, PTMSP-NaA Zeolite 복합막의 특성을 FT-IR, $^1H$-NMR, GPC, DSC, TGA, SEM에 의해서 조사하였다. PTMSP-NaA Zeolite 복합막의 수소와 질소에 대한 투과도와 선택성을 NaA Zeolite 함량에 따라 조사하였다. TGA측정에 의하면 PTMSP에 NaA Zeolite가 첨가되었을 때 복합막의 감량이 완결되는 온도는 낮아졌고, 감량(wt%)도 작아졌다. SEM관찰에 의하면 NaA Zeolite는 PTMSP-NaA Zeolite 복합막 내에 $2{\sim}5{\mu}m$ 크기로 분산되어 있었다. PTMSP-NaA Zeolite 복합막에 대한 $N_2$와 $H_2$의 투과도는 NaA Zeolite 함량이 증가하면 증가하였다. 그리고 PTMSP-NaA Zeolite 복합막의 $N_2$에 대한 $H_2$의 선택성은 NaA Zeolite함량이 증가하면 감소하였다.

Keywords

References

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