氧化铝陶瓷膜的微结构调控与烟气水分回收性能研究  

Microstructure Regulation and Flue Gas Water Recovery Performance of Alumina Ceramic Membranes

作　　者：李明哲 张云涛 傅宏明 孙广帅 陈克丕 陈海平[1,2] 吕玉珍[1] LI Mingzhe;ZHANG Yuntao;FU Hongming;SUN Guangshuai;CHEN Kepi;CHEN Haiping;LYU Yuzhen(School of Energy,Power and Mechanical Engineering,North China Electric Power University,Beijing 102206,China;National Thermal Power Engineering&Technology Research Center,North China Electric Power University,Beijing 102206,China)

机构地区：[1]华北电力大学能源动力与机械工程学院,北京102206 [2]华北电力大学国家火力发电工程技术研究中心,北京102206

出　　处：《陶瓷学报》2022年第2期272-278,共7页Journal of Ceramics

基　　金：国家重点研发计划子课题(2018YFB0604302-04)。

摘　　要：以钛酸四丁酯为钛源、丁醇为溶剂,采用原位液相沉积法对陶瓷微滤膜孔隙结构进行调控,研究了热处理温度和处理次数对膜体微结构的影响规律。采用扫描电子显微镜(SEM)和汞孔隙率法(MIP)表征陶瓷膜的微观结构、孔径和比表面积,采用烟气水分回收实验测试了陶瓷膜的烟气水分回收性能。结果表明,二氧化钛颗粒在膜孔中形成了新的孔道微结构,实现了对膜体比表面积的调控。最佳条件下,膜体比表面积可提高至原始膜体的14倍,处理后的膜体可将烟气回收水的水质提高近86%,而水通量仅减小约18%。Using tetra butyltitan ate as titanium source and but anol as solvent, the pore structure of ceramic microfiltration membrane was regulated by using an in-situ liquid-phase deposition method. The effects of heat treatment temperature and time on microstructure of the ceramic microfiltration membrane were studied. Scanning electron microscopy(SEM) and mercury porosity method(MIP) were used to characterize microstructure, pore diameter and specific surface area of the ceramic membranes. Water recovery property of the ceramic membranes was measured by using flue gas water recovery test. It was shown that titanium dioxide particles formed new pore microstructure in the membranes, thus regulating the specific surface area. Under the optimum condition,the specific surface area of the membrane was increased by 14 times. The quality of flue gas recovery water can be enhanced by nearly 86% after the treatment of the membranes, while the water flux is only reduced by about 18%.

关 键 词：陶瓷微滤膜 原位液相沉积 比表面积 孔径 烟气水分回收 

分 类 号：TQ174.75[化学工程—陶瓷工业]