진공모드에서 NaY 제올라이트 막의 CO2-N2-O2 혼합기체의 투과거동 연구
A study on permeation of CO₂-N₂-O₂ mixed gases through a NaY zeolite membrane under permeate evacuation mode
(Received October 3, 2013, Revised October 7, 2013, Accepted October 9, 2013)
Abstract
In the present study, CO2 permeation through a hydrophilic NaY zeolite membrane was studied under permeateevacuation mode for CO2 single gas, CO2-N2 and CO2-O2 binary mixtures, and CO2-N2-O2 ternary mixture. It was reconfirmedthat the CO2 permeation was governed by surface diffusion and the CO2 selectivity was induced from blockingeffect of adsorbed CO2 molecules. The CO2 permeance measured in permeate evacuation mode was much lower than thatdone in He sweeping mode, but was comparable to that obtained under feed pressurization mode. The NaY zeolite membraneshowed a considerable CO2 separation for 14%CO2-80%N2-6%O2 mixture : CO2 permeance was about 1 × 10-7 mol/m2secPa and CO2 selectivity was more than 10. Therefore, it was concluded that NaY zeolite membrane was one ofpromising membranes for post-combustion CCS process.
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Reference
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2.E. O. Kim, "Application of ceramic membrane", Membrane journal, 3, 13 (1993)
3.S. J. Jung and Y. T. Lee, "Develoment of high tempearature CO2 separation and utilization technology by ceramic membrane", Membrane journal, 8, 60 (1998)
4.K. Kusakabe, T. Kuroda, A. Murata, and S. Morooka, "Formation of Y-type zeolite membrane on a porous α-Alumina tube for gas separation", Ind. Eng. Chem. Res., 36, 650-654 (1997).
5.K. Kusakabe, T. Kuroda, K. Uchino, Y. Hasegawa, and S. Morooka, "Gas Permeation Properties of Ion-Exchanged Faujasite-Type Zeolite Membranes", AIChE J., 45, 1222 (1999).
6.B. M. Min, "Status of CO2 Capturing Technologies in Post Combustion", KIC News, 12, 24 (2009).
7.C.-K. Yi, "Advances of Carbon Capture Technology", KIC News, 12, 35-36 (2009).
8.C.-H. Cho, J. G. Yeo, Y. S. Ahn, M.-H. Han, Y. H. Kim, and S.-H. Hyun, "Secondary growth of sodium type faujasite zeolite layers on a porous α -Al2O3 tube and the CO2/N2 separation", Membrane Journal, 17, 254 (2007).
9.Y. Hasegawa, T. Tanaka, K. Watanabe, B.-H. Jeong, K. Kusakabe, and S. Morooka, "Separation of CO2-CH4 and CO2-N2 systems using ion-exchanged FAU-type zeolite membranes with different Si/Al rations", Korean J. Chem. Eng., 19(2), 309-313 (2002).
10.K. Mizukami, H. Tkaba, Y. Kobayashi, Y. Oumi, R. V. Belosludov, S. Takami, M. Kubo, and A. Miyamoto, "Molecular dynamics calculations of CO2/N2 mixture through the NaY type zeolite membrnae", J. Membr. Sci. 188, 21 (2001).
11.Y. Hasegawa, K. Watanabe, K. Kusakabe, and S. Morooka, "The separation of CO2 using Y-type zeolite membranes ion-exchanged with alkali metal cations", Sep. Purif. Technol., 22-23, 322-325 (2001).
12.K. Kusakabe, T. Kuroda, and S. Morooka, "Separation of carbon dioxide from nitrogen using ion-exchanged faujasite-type zeolite membranes formed on porous support tubes", J. Membr. Sci., 148, 14 (1998).
13.Y. J. Kim, "The characteristics of equilibria and permeation in nano-porous materials for gas separation", Unpublished master's thesis, Yonsei University, Seoul, 10-11 (2006).
14.H. S. Kim, "Synthesis and CO2/N2 separation of sodium-type faujasite zeolite membranes", Unpublished master's thesis, Pukyong National University, Busan, 6-8 (2006).