| 戊二醛交联PVA/PAN复合膜渗透汽化性能的实验研究 |
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| 引用本文： | 万朝阳,陈翠仙.戊二醛交联PVA/PAN复合膜渗透汽化性能的实验研究[J].北京化工大学学报(自然科学版),2000,27(1):4-7. |
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| 作者姓名： | 万朝阳 陈翠仙 |
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| 作者单位： | 1. 北京化工大学化学工程学院,北京,100029
2. 清华大学化工系,北京,100084 |
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| 摘 要： | 研究了戊二醛交联时间对PVA/PAN复合膜分离性能的影响,并用于乙醇水溶液的分离。结果表明,交联处理存在着最优时间。对应于最优交联时间的膜,当料液中乙醇质量分数(wE)为96.2%,料液温度(t)为70℃时,渗透通量(Jt)为337(g·m-2·h-1),分离因数(αW/E)为389.7。进一步考察了料液质量分数为30%～98.3%,料液温度为50～78℃时,交联膜的分离性能。
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| 关 键 词： | 渗透汽化 戊二醛 交联 PVA/PAN复合膜 渗透汽化 戊二醛 交联 PVA/PAN复合膜 |
The pervaporation characteristics of a PVA/PAN composite membrane crosslinked by glutaradehyde |
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| WAN Zhao-yang,CHEN Cui-xian.The pervaporation characteristics of a PVA/PAN composite membrane crosslinked by glutaradehyde[J].Journal of Beijing University of Chemical Technology,2000,27(1):4-7. |
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| Authors: | WAN Zhao-yang CHEN Cui-xian |
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| Affiliation: | WAN Zhao yang 1) CHEN Cui xian 2) |
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| Abstract: | The duration of crosslinking reaction of a PVA/ PAN composite membrane by glutaradehyde was studied. Pervaporation test s of water2ethanol mixture through the crosslinked membrane were performed. The result s showed there is optional duration of crosslinking reaction , after which the permeation flux of the membrane was 337 (g·m-2 ·h-1 ) and the separation factor 389.7 when the feed concent ration of ethanol was 96.2%(massf raction) and feed temperature 70 ℃. Pervaporation test s with feed concent ration of ethanol from 30% to 98.3% (massf raction) and feed temperature f rom 50℃ to 78℃were also performed to study the influence of operation factors. |
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| Keywords: | pervaporation glutaradehyde crosslinked PVA/PAN composite membrane |
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