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PENG Fubing; JIANG Zhongyi
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彭福兵; 姜忠义
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Abstract: A modified solution-diffusion model was established based on Flory-Huggins thermodynamic theory and Fujita’s free volume theory. This model was used for description of the mass transfer of removal benzene from dilute aqueous solutions through polydimethylsiloxane (PDMS) membranes. The effect of component concentration on the interaction parameter between components, that of the polymer membrane on the selectivity to benzene, and that of feed concentration and temperature on the permeation flux and separation factor of benzene/water through PDMS membranes were investigated. Calculated pervaporation fluxes of benzene and water were compared with the experimental results and were in good agreement with the experimental data.
Key words: pervaporation, separation, model, benzene, water, polydimethylsiloxane membrane
摘要: A modified solution-diffusion model was established based on Flory-Huggins thermodynamic theory and Fujita’s free volume theory. This model was used for description of the mass transfer of removal benzene from dilute aqueous solutions through polydimethylsiloxane (PDMS) membranes. The effect of component concentration on the interaction parameter between components, that of the polymer membrane on the selectivity to benzene, and that of feed concentration and temperature on the permeation flux and separation factor of benzene/water through PDMS membranes were investigated. Calculated pervaporation fluxes of benzene and water were compared with the experimental results and were in good agreement with the experimental data.
关键词: 苯;蒸汽化;二甲基硅氧烷聚合物;PDMS;水;分离技术
PENG Fubing, JIANG Zhongyi. Modeling of Pervaporation Separation Benzene from Dilute Aqueous Solutions Through Polydimethylsiloxane Membranes[J]. .
彭福兵,姜忠义. PDMS渗透蒸发膜分离稀水溶液中苯的模型研究[J]. CIESC Journal.
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