硅酸盐通报2012，Vol.31Issue(1)：56-61,6.
二氧化硅膜的制备及分离CH4/CO2气体的研究
Study on the Preparation of Silica Membranes for CH4/CO2 Separation
摘要
Abstract
Silicon dioxide inorganic membranes for CH4/CO2 separation was prepared by sol-gel method and multiple separation layers process, using tetraethoxysilane (TEOS) as precursor and characterized by TG-DSC,nano particle analyzer as well as SEM. The results indicated that the silicon membranes showed excellent surface properties, with HNO3, EtOH and DMF as catalyst, cosolvent and chemical additive respectively; for the process multiple separation layers, the results show that separation factor of ideal CH4/CO2 is as high as 1. 73 for high-quality membranes, its effect is significantly higher than the separation factor 1.6 of a single sol, under 0. 025 Mpa. And the ability of silica membrane for the gas separation is improved.关键词
分离因子/多分离层/二氧化硅膜Key words
separation factor/multiple separation layers/silica membranes分类
数理科学引用本文复制引用
张志刚,张冰,陈立峰,李文秀..二氧化硅膜的制备及分离CH4/CO2气体的研究[J].硅酸盐通报,2012,31(1):56-61,6.基金项目
国家自然科学基金资助项目(No.21076126) （No.21076126）
