MFI-type zeolite membrane on hollow fiber substrate for hydrogen separation  

作　　者：YUAN WenHui WANG DeLin LI Li 

机构地区：[1]School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China [2]College of Environmental Science and Engineering, South China University of Technology, Guangzhou 510640, China

出　　处：《Chinese Science Bulletin》2011年第23期2416-2418,共3页

基　　金：supported by the National Natural Science Foundation of China (20976057)

摘　　要：High performance MFI-type zeolite membranes on the outer surface of α-Al 2 O 3 hollow fibers were synthesized by secondary growth method using pure silica sol without an organic template. X-ray diffraction was used to characterize the phase structure of both the seed layer and zeolite membrane. The morphologies of the seed layer and zeolite membrane were examined by scanning electron microscopy. The zeolite membrane achieved an extraordinary H 2 /CO 2 separation factor of 10 with a high H 2 permeance of 5.56 10 -7 mol m -2 s -1 Pa -1 at 723 K.High performance MFI-type zeolite membranes on the outer surface of α-Al2O3 hollow fibers were synthesized by secondary growth method using pure silica sol without an organic template. X-ray diffraction was used to characterize the phase structure of both the seed layer and zeolite membrane. The morphologies of the seed layer and zeolite membrane were examined by scanning electron microscopy. The zeolite membrane achieved an extraordinary H2/CO2 separation factor of 10 with a high H2 permeance of 5.56x10^-7 mol m^-2 s^-1 Pa^-1 at 723 K.

关 键 词：MFI型 中空纤维 沸石膜 纤维基材 氢分离 扫描电子显微镜 Al2O3 X射线衍射 

分 类 号：TQ116.2[化学工程—无机化工]