ISSN : 1226-0088(Print)
ISSN : 2288-7253(Online)
ISSN : 2288-7253(Online)
Membrane Journal Vol.25 No.2 pp.107-114
DOI : https://doi.org/10.14579/MEMBRANE_JOURNAL.2015.25.2.107
DOI : https://doi.org/10.14579/MEMBRANE_JOURNAL.2015.25.2.107
Separation of H2 and N2 Gases by PTMSP-NaA Zeolite Composite Membranes
January 5, 2015
March 18, 2015
March 21, 2015
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 H2 and N2 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∼5 μm. The permeability of PTMSP-NaA zeolite composite membranes increased added as NaA zeolite content increased. On the contrary, the selectivity (H2/N2) of the composite membranes decreased as NaA zeolite content increased. PTMSP-NaA zeolite composite membrane showed better permeability and selectivity (H2/N2) of H2 and N2 than PTMSP-NaY zeolite composite membrane.
PTMSP-NaA Zeolite 복합막에 의한 수소-질소 기체 분리에 관한 연구
초록
PTMSP에 0∼50 wt% NaA Zeolite를 첨가하여 PTMSP-NaA Zeolite 복합막을 제조하고, PTMSP-NaA Zeolite 복 합막의 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∼5 μm 크기로 분산되어 있었다. PTMSP-NaA Zeolite 복합막에 대한 N2와 H2의 투과도는 NaA Zeolite 함량 이 증가하면 증가하였다. 그리고 PTMSP-NaA Zeolite 복합막의 N2에 대한 H2의 선택성은 NaA Zeolite함량이 증가하면 감소 하였다.