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个人信息Personal Information
教授
博士生导师
硕士生导师
任职 : 精细化工全国重点实验室主任，教育部智能材料化工前沿科学中心执行主任，大连理工大学膜科学与技术研究开发中心主任
性别：女
毕业院校：中国科学院大连化物所
学位：博士
所在单位：化工学院
学科：化学工程. 膜科学与技术. 生物医学工程
联系方式：hgaohong@dlut.edu.cn
电子邮箱：hgaohong@dlut.edu.cn
用于CO2分离的[bmim][Tf2N]-PAN共混膜制备及性能
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发表时间：2014-01-01
发表刊物：现代化工
期号：8
页面范围：87-90,92
ISSN号：0253-4320
摘要：Imidazolium-based ionic liquids have good CO2 solubility. The utilization of this kind of ionic liquids can enhance gas separation performance by improving both permeability and selectivity of CO2. In this study, 1-butyl-3-methylimidazoliumbis (trifluoro-methylsulfonyl)imide([bmim][Tf2N]) and polyacrylonitrile (PAN) are dissolved in N, N-dimethylformamide (DMF). Then the homogeneous solution is casted and dried on the supported layer of polypropylene (PP) membrane. With the addition of [bmim][Tf2N], the performance of the membrane is improved. When the content of [bmim][Tf2N] is over 50%, ionic liquid becomes continuous phase gradually and CO2 permeation can reach 34.76 GPU. The ideal separation factor of CO2/N2 and CO2/CH4 are 49.51 and 25.14, respectively. With the increase of trans-membrane pressure and test temperature, the permeability of [bmim][Tf2N]-PAN/PP composite membrane increases.
备注：新增回溯数据