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首页> 外文期刊>Separation and Purification Technology >Removing benzene from aqueous solution using CMS-filled PDMS pervaporation membranes
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Removing benzene from aqueous solution using CMS-filled PDMS pervaporation membranes

机译：使用CMS填充的PDMS全蒸发膜从水溶液中去除苯

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摘要

The preferential permeation of benzene over water was achieved with carbon molecular sieve (CMS)-filled polydimethylsiloxane (PDMS) pervaporation membranes.The membranes were characterized by SEM and mechanical strength measurement.The effects of CMS content,benzene concentration in feed solution,operating temperature and feed Reynolds number on the pervaporation properties of the CMS-filled PDMS membranes have been studied.The results showed that the addition of CMS could enhance the mechanical stress of PDMS membranes.With CMS content increasing,permeation flux decreased slightly but separation factor increased to some extent.With the increase of benzene concentration in feed solution and Reynolds number of feed,permeation flux and separation factor both improved significantly.With operating temperature increasing,permeation flux increased but separation factor decreased.
机译：填充碳分子筛的聚二甲基硅氧烷（PDMS）渗透汽化膜实现了苯优先于水的渗透。通过SEM和机械强度测量对膜进行了表征。CMS含量，进料溶液中苯浓度，操作温度的影响结果表明，CMS的加入可增强PDMS膜的机械应力。随着CMS含量的增加，渗透通量略有下降，但分离系数增大至随着进料溶液中苯浓度的增加和进料的雷诺数的增加，渗透通量和分离系数均显着提高。随着工作温度的升高，渗透通量增加，分离系数降低。

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