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Ultrasound-Assisted Pervaporative Separation of Pyridine-Water Mixture Using PDMS Membrane
Pages: 934-940
Year: Issue:  6
Journal: Journal of Chemical Engineering of Chinese Universities

Keyword:  渗透汽化聚二甲基硅氧烷膜超声波吡啶-水;
Abstract: 对自制聚二甲基硅氧烷(PDMS)膜渗透汽化分离低浓度吡啶-水体系的性能进行了研究.采用扫描电镜(SEM)和X射线能谱仪(EDS)对膜的形貌及化学组成进行了分析和表征,测定了PDMS膜在吡啶-水溶液中的溶胀行为.分别考察了膜厚度、操作温度、下游侧压强、进料浓度以及超声对PDMS膜渗透蒸发分离性能影响.结果表明,随着操作温度和原料中吡啶浓度的增加,膜的渗透通量增加,分离因子减小;随着膜厚度的增加,膜的...
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