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The effect of a support layer on the permeability of water vapor in asymmetric composite membranes
Liu, L; Chen, Y; Li, SG; Deng, MC
关键词Water Vapor Asymmetric Composite Membrane Resistance Support Layer Dehumidification Process
刊名SEPARATION SCIENCE AND TECHNOLOGY
2001
36期:16页:3701-3720
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Multidisciplinary ; Engineering, Chemical
研究领域[WOS]Chemistry ; Engineering
关键词[WOS]HOLLOW FIBER MEMBRANES ; GAS SEPARATIONS ; RESISTANCE ; TRANSPORT ; SORPTION
英文摘要Water vapor permeation through a silicone rubber-PSF (polysulfone) resistance composite membrane was studied. The resistance of the asymmetric composite membrane to the permeation of nitrogen, hydrogen, and water vapor is discussed on the basis of a serial resistance model. Compared with nitrogen and hydrogen, the resistance to water vapor is not attributable to the skin layer but is mainly due to the support layer of high water vapor permeability. The water vapor permeability decreases considerably with the increase of support layer resistance; the effect was greater when a relatively high vacuum was applied to the permeate gas side of the membrane. This result was also verified by the experiments of gas and vapor permeation through the composite membrane. In addition, the effects of the membrane structure on the water vapor permeability, as well as on the resistance of the support layer, were also investigated. The membrane dehumidification process was used because it increased the porosity, the pore size of the support layer, and the thickness of the skin layer.
语种英语
WOS记录号WOS:000173092600010
引用统计
被引频次:21[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/138986
专题中国科学院大连化学物理研究所
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, Natl Engn Res Ctr Membrane Technol, Beijing 100864, Peoples R China
推荐引用方式
GB/T 7714
Liu, L,Chen, Y,Li, SG,et al. The effect of a support layer on the permeability of water vapor in asymmetric composite membranes[J]. SEPARATION SCIENCE AND TECHNOLOGY,2001,36(16):3701-3720.
APA Liu, L,Chen, Y,Li, SG,&Deng, MC.(2001).The effect of a support layer on the permeability of water vapor in asymmetric composite membranes.SEPARATION SCIENCE AND TECHNOLOGY,36(16),3701-3720.
MLA Liu, L,et al."The effect of a support layer on the permeability of water vapor in asymmetric composite membranes".SEPARATION SCIENCE AND TECHNOLOGY 36.16(2001):3701-3720.
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