CEMS烟气预处理系统用Nafion膜的改性及性能表征  

Modification and characterization of Nafion membrane for CEMS flue gas pretreatment system

作　　者：姚学忠 王铁民 郭行义 赵晓丹 杨宁 崔承刚 杨家哲 YAO Xue-zhong;WANG Tie-min;GUO Xing-yi;ZHAO Xiao-dan;YANG Ning;CUI Cheng-gang;YANG Jia-zhe(Datang Environmental Industry Group Co.,Ltd.,Nanjing 211100,China;Shanghai University of Electric Power,Shanghai 200000,China)

机构地区：[1]大唐环境产业集团股份有限公司特许经营分公司,江苏南京211100 [2]上海电力大学,上海200000

出　　处：《应用化工》2021年第2期392-394,402,共4页Applied Chemical Industry

基　　金：国家自然科学基金青年科学基金项目(51607111);上海市科委地方院校能力建设项目(15160500800)。

摘　　要：分别采用皂土及二氧化硅对Nafion膜进行改性,结果表明,在二氧化硅改性优于皂土,其剂量为5%时,Nafion膜吸水量提高34.5%,除湿效果最佳。红外分析表明,二氧化硅增加了磺酸基吸收峰的强度,有利于提高膜的除湿性能。可用于气体除湿,同时保留烟气中低浓度气态污染物,确保气体分析的准确性。Nafion membrane was modified by bentonite and silica respectively.The results showed that the modified silica was better than the modified saponite.When the dosage was 5%,the water absorption of Nafion membrane increased by 34.5%and the dehumidification effect was the best.IR analysis showed that silica increases the intensity of sulfonate group absorption peak,which is beneficial to improve the dehumidification performance of the film and it be used for gas dehumidification while retaining low concentration of gaseous pollutants in flue gas to ensure the accuracy.

关 键 词：烟气除湿 Nafion膜改性 除湿性能 

分 类 号：TQ028.8[化学工程]