DICP OpenIR
Transport phenomena of chitosan membrane in pervaporation of water-ethanol mixture
Ren, JZ; Jiang, CZ
KeywordPervaporation Chitosan Membrane H2so4 Cross-linking Chitosan Membrane Water-ethanol Mixture Membrane Separation Temperature Thermodynamic Swelling Process Transport Phenomena
Source PublicationSEPARATION SCIENCE AND TECHNOLOGY
1998
Volume33Issue:4Pages:517-535
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Multidisciplinary ; Engineering, Chemical
WOS Research AreaChemistry ; Engineering
WOS KeywordSEPARATION ; PERMSELECTIVITY ; PERMEATION
AbstractThe 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.
Language英语
WOS IDWOS:000072485800005
Citation statistics
Cited Times:24[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/138186
Collection中国科学院大连化学物理研究所
AffiliationChinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
Recommended Citation
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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