| 학회 |
한국화학공학회 |
| 학술대회 |
2006년 봄 (04/20 ~ 04/21, 대구 인터불고 호텔) |
| 권호 |
12권 1호, p.269 |
| 발표분야 |
분리기술 |
| 제목 |
Study of diffusional and structural parameters of five single gases in MTES and zeolite membranes using unsteady-state permeation |
| 초록 |
The equilibirum and kinetic characteristics of a MTES templating silica/α-alumina composite membrane and zeolite membranes were studied by using unsteady and steady-state permeation of pure CO2, N2, CH4, H2 and He gases. The saturated amount of adsorption, Langmuir parameter and Maxwell-Stefan diffusivity could be estimated by the generalized Maxwell-Stefan model incorporating dust gas model and Langmuir model from transient transport and steady-state measurements. Using the obtained equilibrium and kinetic parameters, the perameation fluxes at unsteady-state pressurization and depressurization steps in the membrane could be predicted. Since the permeation flux in the MTES membrane was affected by molecular sieving effect as well as surface diffusion property, the kinetic and equilibrium separation should be considered simultaneously in the membrane according to molecular properties. |
| 저자 |
문종호1, 배윤상1, 정종태1, 정진환1, 권준미1, 조철희2, 현상훈1, 이창하1
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| 소속 |
1연세대, 2한국에너지기술(연) |
| 키워드 |
MTES templation; silica membrane; zeolite membrane; transient permeation; sieving effect; Maxwell-Stefan theory
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| E-Mail |
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| 원문파일 |
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