| 高通量ZSM-5填充硅橡胶复合膜渗透汽化性能研究 |
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| 引用本文： | 展侠,李继定,操建华,黄军其,陈翠仙. 高通量ZSM-5填充硅橡胶复合膜渗透汽化性能研究[J]. 膜科学与技术, 2009, 29(4) |
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| 作者姓名： | 展侠 李继定 操建华 黄军其 陈翠仙 |
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| 作者单位： | 清华大学,化学工程系,膜技术工程研究中心,北京,100084 |
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| 基金项目： | 国家"973"项目，国家自然科学基金项目，国家"863"计划项目，中石化科技开发研究基金 |
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| 摘 要： | 以硅铝比为360的ZSM-5型沸石对聚二甲基硅氧烷(PDMS)进行填充,以聚偏氟乙烯(PVSF)为支撑层,制备了ZSM-5填充PDMS/PVDF复合膜,用于渗透汽化乙醇/水混合物的分离.研究了沸石填充量、操作温度、进料液浓度对乙醇/水的渗透汽化分离性能的影响,发现该复合膜较文献报道中的沸石填充膜,其渗透通量有了明显的提高,在50℃沸石填充量为40%时,对乙醇的分离因子为11.7,其渗透通量达到749.8 g/(m2·h).随着操作温度的升高或料液中乙醇浓度升高,渗透通量增大,分离因子下降.
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| 关 键 词： | 聚二甲基硅氧烷(PDMS) 渗透通量 优先透醇 渗透汽化 |
Pervaporation performance of ZSM-5 filled silicone composite membranes with high flux |
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| ZHAN Xia,LI Jiding,CAO Jianhua,HUANG Junqi,CHEN Cuixian. Pervaporation performance of ZSM-5 filled silicone composite membranes with high flux[J]. Membrane Science and Technology, 2009, 29(4) |
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| Authors: | ZHAN Xia LI Jiding CAO Jianhua HUANG Junqi CHEN Cuixian |
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| Affiliation: | Membrane Technology & Engineering Research Center;Department of Chemical Engineering;Tsinghua University;Beijing 100084;China |
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| Abstract: | Zeolite filled polydimethylsiloxane(PDMS) composite membrane was prepared by incorporation of ZSM-5 particles with Si/Al ratio of 360 into PDMS solution which was cast onto polyvinylidene fluoride(PVDF) porous membranes.The resulted zeolite filled PDMS/PVDF composite membranes were applied for the pervaporation of ethanol/water mixtures.The effect of zeolite content,operation temperature and ethanol concentration in feed on pervaporation performance of ethanol/water mixtures was investigated.It was found th... |
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| Keywords: | ZSM-5 |
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