气体分离膜材料从空气中分离氙气性能研究  

Research on the performance of gas separation membrane materials in separating xenon from air

作　　者：陈占营[1] 刘蜀疆[1] 常印忠[1] 盛毓强 王建龙[2] 黑东炜[3] CHEN Zhanying;LIU Shujiang;CHANG Yinzhong;SHENG Yuqiang;WANG Jianlong;HEI Dongwei(CTBT Beijing National Data Centre and Radionuclide Laboratory,Beijing 100085,China;Institute of Nuclear and New Energy Technology,Tsinghua University,Beijing 100084,China;Northwest Institute of Nuclear Technology,Xi'an 710024,China)

机构地区：[1]禁核试北京国家数据中心和北京放射性核素实验室,北京100085 [2]清华大学核能与新能源技术研究院,北京100084 [3]西北核技术研究所,西安710024

出　　处：《膜科学与技术》2025年第1期137-145,共9页Membrane Science and Technology

基　　金：国家自然科学基金项目(1220051626)。

摘　　要：大气放射性氙监测对于核试验检测具有重要意义.以从空气中分离浓缩氙为应用背景,实验测试了N_(2)、O_(2)、CO_(2)和Xe 4种气体在不同类别膜材料中的渗透性,评价了不同膜材料对4种气体之间的分离性能;考察了温度、压力等操作条件变化对氙气分离性能的影响.结果表明,在聚酰亚胺(PI)、聚苯醚(PPO)和聚砜(PSf)3类材料中,PI具有明显优于其他两类材料的氙气分离性能;温度和压力变化对氙气分离性能的影响均不明显.上述研究工作对于气体分离膜从空气中分离氙气的实际应用具有重要意义.Atmospheric radioxenon monitoring is of great significance for nuclear test ban verification.Taking the separation and concentration of xenon from air as the application background,this paper tested the permeabilities of N_(2)、O_(2)、CO_(2) and Xe 4 in various membrane materials,and the separation performances for the gases were compared.The effects of temperature and pressure on the gases permeation and separation were investigated.The results show that among the three types of materials,namely polyimide(PI),polyphenylene ether(PPO)and polysulfone(PSf),PI has a significantly better xenon separation performance than the other two types of materials;the influences of temperature and pressure changes on the xenon separation performance are both not obvious.The above research work is of great significance for the practical application of gas separation membranes in separating xenon from air.

关 键 词：气体分离膜 放射性氙 渗透性能 分离性能 

分 类 号：O484.3[理学—固体物理]