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Transport phenomena of chitosan membrane in pervaporation of water-ethanol mixture
Ren, JZ; Jiang, CZ
关键词Pervaporation Chitosan Membrane H2so4 Cross-linking Chitosan Membrane Water-ethanol Mixture Membrane Separation Temperature Thermodynamic Swelling Process Transport Phenomena
刊名SEPARATION SCIENCE AND TECHNOLOGY
1998
33期:4页:517-535
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]SEPARATION ; PERMSELECTIVITY ; PERMEATION
英文摘要The pervaporation transport process of H2O-EtOH solution was studied on a chitosan membrane and on a H2SO4 crosslinked chitosan membrane. The influence of concentration, temperature, and crosslinking was also studied. The dependence of permeation fluxes on feed concentration showed strong coupling effects existed in the permeation process. That the thermodynamic swelling-distribution relationship changed with the feed concentration also showed that a strong coupling effect existed in the thermodynamic swelling process. The permeation fluxes and thermodynamic swelling processes showed analogous relationships versus the concentration in the feed. The high swelling ratio and the high selectivity of the membrane in the thermodynamic swelling distribution process was the basis of high flux and high permselectivity of pervaporation. With an increase of temperature, the permeation fluxes increased quickly, but the swelling ratio of water and EtOH in the membrane scarcely changed. This showed that an increase of temperature promoted the diffusion process but had little influence on permselectivity. The permselectivity of pervaporation depended strongly on the thermodynamic swelling process.
语种英语
WOS记录号WOS:000072485800005
引用统计
被引频次:24[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/321008/138186
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, Dalian 116023, Peoples R China
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GB/T 7714
Ren, JZ,Jiang, CZ. Transport phenomena of chitosan membrane in pervaporation of water-ethanol mixture[J]. SEPARATION SCIENCE AND TECHNOLOGY,1998,33(4):517-535.
APA Ren, JZ,&Jiang, CZ.(1998).Transport phenomena of chitosan membrane in pervaporation of water-ethanol mixture.SEPARATION SCIENCE AND TECHNOLOGY,33(4),517-535.
MLA Ren, JZ,et al."Transport phenomena of chitosan membrane in pervaporation of water-ethanol mixture".SEPARATION SCIENCE AND TECHNOLOGY 33.4(1998):517-535.
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