Membrane Journal (멤브레인)

The Membrane Society of Korea (한국막학회)
권호 표지

Studies on the $N_2/SF_6$ Permeation Behaviors Using the Polyethersulfone Hollow Fiber Membranes

폴리이서설폰 중공사 막을 이용한 $N_2/SF_6$ 투과거동에 관한 연구

  • Published : 2009.09.30
Download PDF
⟨ Previous Next ⟩

Abstract

In this research the polyethersulfone hollow fiber membrane was used to separate Sulfur Hexafluoride ($SF_6$) which is the one of the six greenhouse gases from Air ($N_2$). The effects of the non-solvent (Acetone, Ethanol) type, air-gap and post-treatment (surface silicon coating) were investigated by the structure and performance of the membranes. The structure change of the membrane was examined by scanning electron microscope. The single gas permeation using $N_2$, $SF_6$ through the membrane surface coated with silicon showed maximum 7.64 perm-selectivity improved 3.4 times.

본 연구에서는 폴리이서설폰(polyethersulfone, PES) 중공사 막을 이용하여 6대 온실가스에 속하는 육불화황($SF_6$)을 질소 중에서 분리하고자 하였다. 제막 조건에 따른 막의 구조와 성능변화를 관찰하기 위하여 다른 비용매(아세톤, 에탄올)와 에어갭(air-gap) 그리고 실리콘 코팅을 통하여 성능변화를 관찰하였으며, 전자주사현미경(scanning electron microscope)을 통하여 구조 변화를 관찰하였다. $N_2$, $SF_6$ 단일기체 투과실험에서 제조된 막의 표면 실리콘 코팅을 통하여 최고 7.64의 선택도를 나타내어 3.4배 향상된 결과를 나타내었다.

Keywords

References

  1. L. V. D. Zel, 'Complete Field Assessment of SF_6 (Sulfur Hexafluoride) and On-Site Reclamation of Contaminated Gas - Results of Field Trials and Research Update (report)', Electric Power Research Institute, October (2002)
  2. O. Yamamoto, T. Takuma, and M. Kinouchi., 'Recovery of SF_6 from N_2/SF_6 Gas Mixture by Using a Polymer Membrane', IEEE Electrical Insulation Magazine, 18, 32 (2002) https://doi.org/10.1109/MEI.2002.1014965
  3. American Air Liquid, 'Method and Apparatus for Separation of SF_6 from CF_4/Air-Containing Gas Stream', US patent, US 6,389, 845 Bl, May 21 (2002)
  4. The Membrane Society of Korea, 'Membrane Separation - basic', pp. 297-306, Freedom academy, Korea (1996)
  5. T. S. Chung, S. K. Teoh, and X. Hu, 'Formation of ultrathin high-performance polyethersulfone hollowfiber membranes', J. Membr. Sci., 133, 161 (1997) https://doi.org/10.1016/S0376-7388(97)00101-4
  6. K. Shiojiri, Y. Yanagisawa, A. Yamasaki, and F. Kiyono, 'Separation of F-gases (HFC-134a and SF_6) from gaseous mixtures with nitrogen by surface diffusion through a porous Vycor glass membrane', J. Membr. Sci., 282, 442 (2006) https://doi.org/10.1016/j.memsci.2006.06.003
  7. J. H. Kim, J. W. Rhim, and S. B. Lee, 'Research Trend of Membrane Technology for Separation of Carbon Dioxide from Flue Gas', Membrane Journal, 12, 121 (2002)
  8. D. Wang, K. Li, and W. K. Teo, 'Highly permeable polyethersulfone hollow fiber gas separation membranes prepared using water as nonsolvent additive', J. Membr. Sci., 176, 147 (2000) https://doi.org/10.1016/S0376-7388(00)00419-1
  9. J. J. Qin and T. S. Chung, 'Effects of orientation relaxation and bore fluid chemistry on morphology and performance of polyethersulfone hollow fibers for gas separation', J. Membr. Sci., 229, 1 (2004) https://doi.org/10.1016/j.memsci.2003.10.014
  10. D. Wang, K. Li, and W. K. Teo, 'Polyethersulfone hollow fiber gas separation membranes prepared from NMP/alcohol solvent systems', J. Membr. Sci., 115, 85 (1996) https://doi.org/10.1016/0376-7388(95)00312-6
  11. Q. Yang, T. S. Chung, M. Weber, and K. Wollny, 'Rheological investigations of linear and hyperbranched polyethersulfone towards their as-spun phase inversion membranes differences', Polymer, 50, 524 (2009) https://doi.org/10.1016/j.polymer.2008.11.039
  12. H. H. Park, B. R. Deshwal, H. D. Jo, W. K. Choi, I. W. Kim, and H. K. Lee 'Absorption of nitrogen dioxide by PVDF hollow fiber membranes in a GL contactor', Desalination, 243, 52 (2009) https://doi.org/10.1016/j.desal.2008.04.014
  13. H. H. Park, B. R. Deshwal, I. W. Kim, and H. K. Lee, 'Absorption of SO_2 from flue gas using PVDF hollow fiber membranes in a gas-iquid contactor', J. Membr. Sci., 319, 29 (2008) https://doi.org/10.1016/j.memsci.2008.03.023
  14. B. R. Park, J. W. Rhim, S. Y. Lee, T. S. Hwang, and H. K. Lee, 'Mebrane Surface Modification through Direct Fluorination for Gas-Liuquid Contactor', Membrane Journal, 17, 345 (2007)
  15. M. Ulbricht, 'Advanced functional polymer membranes', Polymer, 47, 2217 (2006) https://doi.org/10.1016/j.polymer.2006.01.084
  16. D. Wang, K. Li, and W. K Teo, 'Polyethersulfone hollow fiber gas separation membranes prepared from NMP/alcohol solvent system', J. Membr Sci., 115, 85 (1996) https://doi.org/10.1016/0376-7388(95)00312-6
  17. J. H. Kim, W. I. Sohn, S. H. Choi, and S. B. Lee, 'Preparation of Asymmetric Polyethersulfone Hollow Membranes for Flue Gas Separation', Membrane Journal, 15, 147 (2005)
  18. S. H. Choi, J. H. Kim, B. S. Kim, and S. B. Lee, 'Multi-stage Membrane Process for CO_2 Separation from Flue Gas Using PES Hollow Fiber Membrane Modules', Membrane Journal, 15, c (2005)