CERAMIC MEMBRANES FROM SOL-GEL TECHNOLOGY

被引:12
作者
GALAN, M
LLORENS, J
GUTIERREZ, JM
GONZALEZ, C
MANS, C
机构
[1] Chemical Engineering Department, University of Barcelona, 08028 Barcelona
关键词
D O I
10.1016/S0022-3093(05)80669-6
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The use of membranes for gas separation is a relatively recent but rapidly growing technique. There are polymeric membranes for gas separations, but they are chemically and thermally unstable for some applications. Ceramic membranes can provide stability under drastic conditions, and for combustion gas purification they are probably the only useful membranes. The sol-gel technique facilitates preparation of thin ceramic layers with controlled pore size. Ceramic membranes were made by slip-casting sols on a support which was composed of two ceramic layers. Membranes made of pure Al2O3, a mixture of Al2O3-TiO2, and a mixture of Al2O3-SiO2 were tested for their ability to separate the gas mixtures N2-O2, N2-CO2 and N2-SO2. The mechanisms of flow through the porous membranes are discussed in relation to their efficiency of gas separation.
引用
收藏
页码:518 / 522
页数:5
相关论文
共 6 条
[1]   TITANIA AND ALUMINA CERAMIC MEMBRANES [J].
ANDERSON, MA ;
GIESELMANN, MJ ;
XU, QY .
JOURNAL OF MEMBRANE SCIENCE, 1988, 39 (03) :243-258
[2]   GAS SEPARATION MECHANISMS IN MICROPOROUS MODIFIED GAMMA-AL2O3 MEMBRANES [J].
KEIZER, K ;
UHLHORN, RJR ;
VANVUREN, RJ ;
BURGGRAAF, AJ .
JOURNAL OF MEMBRANE SCIENCE, 1988, 39 (03) :285-300
[3]  
KEIZER K, 1984, SCI CERAM, V12, P101
[4]   THE PREPARATION AND CHARACTERIZATION OF ALUMINA MEMBRANES WITH ULTRA-FINE PORES .4. ULTRAFILTRATION AND HYPERFILTRATION EXPERIMENTS [J].
LEENAARS, AFM ;
BURGGRAAF, AJ .
JOURNAL OF MEMBRANE SCIENCE, 1985, 24 (03) :261-270
[5]  
SPILLMAN RW, 1989, CHEM ENG PROG, V85, P41
[6]   GAS-PERMEABILITY OF A POROUS ALUMINA MEMBRANE PREPARED BY THE SOL-GEL PROCESS (ALUMINUM ISO-PROPOXIDE) [J].
SUZUKI, F ;
ONOZATO, K ;
KUROKAWA, Y .
JOURNAL OF NON-CRYSTALLINE SOLIDS, 1987, 94 (01) :160-162