MFI型分子筛膜的制备与表征  

The Synthesis and Characterization of MFI Zeolite Membrane

作　　者：张延风[1] 卢冠忠[1] 许中强[2] 陈庆龄[2] 

机构地区：[1]华东理工大学工业催化研究所,上海200237 [2]中国石油化工集团公司

出　　处：《催化学报》2000年第5期447-450,共4页

摘　　要：用原位水热合成法在α Al2 O3 陶瓷管上合成出MFI型分子筛膜 .采用超声清洗的方法表征了分子筛晶体的附着强度 ,并用XRD和SEM等手段对分子筛膜进行了表征 .渗透数据表明 ,气体透过膜时不遵从努森扩散机理 ;此分子筛膜具有分子筛分作用 。MFI zeolite membrane was prepared on α Al 2O 3 substrate tube by in situ hydrothermal synthesis. The ultrasonic cleaner was used to evaluate the adhesion strength of zeolite crystals on the substrate. The ultrasonic cleaning method, combined with XRD, SEM and other characterization techniques, is effective for characterization of zeolite membrane. The gas permeation behavior through MFI zeolite membrane is different from the Knudsen mechanism, indicating that the MFI zeolite membrane has no defects and has the ability of sieving molecules.

关 键 词：膜分离 MFI型分子筛膜 制备 表征 原位水热合成 

分 类 号：O643[理学—物理化学]