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ISSN : 1226-0088(Print)
ISSN : 2288-7253(Online)
Membrane Journal Vol.23 No.5 pp.352-359

진공모드에서 NaY 제올라이트 막의 CO2-N2-O2 혼합기체의 투과거동 연구

정 수 정, 여 정 구*, 한 문 희, 조 철 희
충남대학교 녹색에너지기술전문대학원, *한국에너지기술연구원 에너지융합소재연구단

A study on permeation of CO₂-N₂-O₂ mixed gases through a NaY zeolite membrane under permeate evacuation mode

Churl Hee Cho, Su Jung Jeong, Jeong-gu Yeo*, Moon Hee Han
Graduate School of Green Energy Technology, Chungnam National University, Daejeon 305-764, Republic of Korea
*Energy Materials and Convergence Research Department, Korea Institute of Energy Research, Daejeon 205-343, Republic of Korea
(Received October 3, 2013, Revised October 7, 2013, Accepted October 9, 2013)


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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