Korean Chemical Engineering Research

The Korean Institute of Chemical Engineers (한국화학공학회)
권호 표지
DOI QR코드

DOI QR Code

Effect of Flow Rates of Feed and Sweep Gas on Oxygen Permeation Properties of Ba0.5Sr0.5Co0.8Fe0.2O3-δ Membrane

공급가스 및 스윕가스 유량에 따른 Ba0.5Sr0.5Co0.8Fe0.2O3-δ 분리막의 산소투과특성

  • Park, Se Hyung (Department of Chemical and Biochemical Engineering, Dongguk University) ;
  • Sonn, Jong Suk (Department of Chemical and Biochemical Engineering, Dongguk University) ;
  • Lee, Hong Joo (Department of Chemical and Biochemical Engineering, Dongguk University) ;
  • Park, Jung Hoon (Department of Chemical and Biochemical Engineering, Dongguk University)
  • 박세형 (동국대학교 화공생물공학과) ;
  • 손종석 (동국대학교 화공생물공학과) ;
  • 이홍주 (동국대학교 화공생물공학과) ;
  • 박정훈 (동국대학교 화공생물공학과)
  • Received : 2014.09.04
  • Accepted : 2014.11.10
  • Published : 2015.08.01
Download PDF
⟨ Previous Next ⟩

Abstract

Dense ceramic membranes have been prepared using the commercial perovsikite $Ba_{0.5}Sr_{0.5}Co_{0.8}Fe_{0.2}O_{3-{\delta}}$, powders synthesized by the solid state reaction method. The as-synthesized powders were compressed into disks with 1.0 mm of thickness and the disk was sintered at $1,100^{\circ}C$ for 2 hr. The oxygen permeation flux of $Ba_{0.5}Sr_{0.5}Co_{0.8}Fe_{0.2}O_{3-{\delta}}$ membrane increased with the increasing temperature and oxygen partial pressure. The activation energy for oxygen permeation was increased with the increasing oxygen partial pressure. Oxygen permeation flux at $950^{\circ}C$ were measured at various flow rates of feed and sweep gas. It has been demonstrated that oxygen permeability increased at elevated flow rates of both gases, but the sweep gas is more influential.

고상반응법으로 제조된 $Ba_{0.5}Sr_{0.5}Co_{0.8}Fe_{0.2}O_{3-{\delta}}$ 조성의 페롭스카이트 산화물 상용분말을 압축 성형 후 $1100^{\circ}C$에서 2시간 동안 소결한 후, 1.0 mm의 두께를 가지는 평판형 분리막을 제조하였다. $Ba_{0.5}Sr_{0.5}Co_{0.8}Fe_{0.2}O_{3-{\delta}}$ 분리막의 산소투과량은 온도와 산소분압이 증가함에 따라 증가하였고, 산소투과의 활성화에너지는 산소분압이 증가할수록 높은 값을 나타내었다. $950^{\circ}C$에서 공급가스와 스윕가스의 유량 변화에 따른 투과 특성 분석 결과, 유량이 증가할수록 높은 산소투과량을 보였으며, 공급가스보다 스윕가스의 유량에 따라 크게 변함을 확인하였다.

Keywords

References

  1. Rubin, E., MeYer, L. and Coninck, H. D., "IPCC Special Report on Carbon dioxide Capture and Storage," Cambridge University Press, New York(2005).
  2. Kim, J. P. and Park, J. H., "Fabrication and Property of $Ba_{0.5}Sr_{0.5}Co_{0.8}Fe_{0.2}O_{{3}-{\delta}}$ Hollow Fiber Membranes," Korean Chem. Eng. Res., 50(1), 1-5(2012). https://doi.org/10.9713/kcer.2012.50.1.001
  3. Lim, K. T., Cho, T. L., Lee, K. S., Woo, S. K., Park, K. B. and Kim, J. W., J. Korean. Ceram. Soc., 38, 787(2001).
  4. Kim, J. P., Park, J. H. and Kim, K. Y., "Comparison of Oxygen Permeability and Stability of $La_{0.6}Sr_{0.4}B_{0.2}Fe_{0.8}O_{{3}-{\delta}}$ (B=Co, Ti) Membrane," J. Energy. Climate Change, 2, 75(2007).
  5. Sunarso, J., Baumann, S., Serra, J. M., Meulenberg, W. A., Liu, S., Lin, Y. S. and Diniz da Costa, J. C., "Mixed Ionic-electronic Conducting (MIEC) Ceramic-based Membranes for Oxygen Separation," J. Membr. Sci., 320, 13(2008). https://doi.org/10.1016/j.memsci.2008.03.074
  6. Park, J. H., Lee, Y. T., Son, S. H. and Kim, J. P. "Oxygen Permeation Properties of $La_{0.7}Sr_{0.3}Co_{0.3}Fe_{0.7}O_{{3}-{\delta}}$ Membrane," Korean Chem. Eng. Res., 47, 310-315(2009).
  7. Moydinov, R. Y., Popova, M. N. and Kaul, A. R., Doklady Chemistry, 402, 88(2005). https://doi.org/10.1007/s10631-005-0041-2
  8. Liu, S., Tan, X., Wang, Z. and Liu, H., "Enhancement of Oxygen Permeation through $La_{0.6}Sr_{0.4}Co_{0.2}Fe_{0.8}O_{{3}-{\delta}}$ Hollow Fibre Membranes by Surface Modifications," J. Membr. Sci., 324, 128-135(2008). https://doi.org/10.1016/j.memsci.2008.07.008
  9. Kusaba, H., Shibata, Y., Sasaki, K. and Teraoka, Y., "Surface Effect on Oxygen Permeation through Dense Membrane of Mixed-conductive LSCF Perovskite-type Oxide," Solid State Ion., 177, 2249(2006). https://doi.org/10.1016/j.ssi.2006.05.038
  10. Teraoka, Y., Nobunaga, T., Okamoto, K., Miur, N. and Yamazoe, N., "Perovskite Membrane of $La_{1-x}Sr_{x}Ti_{1-yFe_{y}O_{3-\delta}$ for Partial Oxidation of Methane to Syngas," Solid State Ion., 48, 207-212(1991). https://doi.org/10.1016/0167-2738(91)90034-9
  11. Han, M., Song, S., Zhang, P. and Singhal, S. C., "Oxygen Permeation and Partial Oxidation of Methane Reaction in $Ba_{0.9}Co_{0.7} Fe_{0.2}Nb_{0.1}O_{3-\delta}$ Oxygen Permeation Membrane," J. Membr. Sci., 415-416, 654-662(2012). https://doi.org/10.1016/j.memsci.2012.05.046
  12. Diethelm, S., Vanherle, J., Middleton, P. H. and Favrat, D., "Oxygen Permeation and Stability of $La_{0.4}Ca_{0.6}Fe_{1-x}Co_{x}O_{3-\delta}$ (x=0, 0.25, 0.5) Membranes," J. Power Sources, 118, 270-275(2003). https://doi.org/10.1016/S0378-7753(03)00098-3
  13. Shao, Z., Yang, W., Cong, Y., Dong, H., Tong, J. and G. Xiong, "Investigation of the Permeation Behavior and Stability of a $Ba_{0.5}Sr_{0.5}Co_{0.8}Fe_{0.2}O_{3-\delta}$ Oxygen Membrane," J. Membr. Sci. 172(1-2), 177-188(2000). https://doi.org/10.1016/S0376-7388(00)00337-9
  14. Liu, L., Lee, T. H., Liu, L., Yang, Y. and Jacobson, A. J., "A Thermogravimetric Study of the Phase Diagram if Strontium Cobalt Iron Oxide, $SrCo_{0.8}Fe_{0.2}O_{{3}-{\delta}}$," Mater. Res. Bull., 31(1), 29-35(1996). https://doi.org/10.1016/0025-5408(95)00147-6
  15. Shao, Z., Xiong, G., Tong, J., Dong, H. and Yamg, W., "Ba Effect in Doped $Sr(Co_{0.8}Fe_{0.2})O_{{3}-{\delta}}$ on the Phase Structure and Oxygen Permeation Properties of the Dense Ceramic Membranes," Purif. Technol., 25, 419-429(2001). https://doi.org/10.1016/S1383-5866(01)00071-5
  16. Park, J. H., Kim, J. P. and Son, S. H., "Oxygen Permeation and Stability of $Ba_{0.5}Sr_{0.5}Co_{0.8}Fe_{0.2}O{{3}-{\delta}}$ Membrane according to Trace Elements and Oxygen Partial Pressure in Synthetic Air," Energy Procedia, 369, 1(2009).
  17. Kim, S., Yang, Y. L., Christoffersen, R. and Jacobson, A. J., "Oxygen Permeation, Electrical Conductivity and Stability of the Perovskite Oxide $La_{0.2}Sr_{0.8}Cu_{0.4}Co_{0.6}O_{3-x}$," Solid State Ion., 104, 57-65(1997). https://doi.org/10.1016/S0167-2738(97)00427-X