1998 Volume 23 Issue 2 Pages 95-99
Zeolite NaA membrane was prepared on the surface of porous tubular support composed of mullite, α-alumina and cristobalite using the hydrothermal synthesis. Based on pervaporation and vapor permeation measurements using H2O/EtOH, zeolite NaA membrane showed very high water-selective permeation irrespective of the ethanol concentration. The tubular-type modules have been fabricated with zeolite membrane, which has excellent mechanical strength, thermal resistance and extreamly high durability to solvents.
The preparation procedure is briefly mentioned and the characteristics of the zeolite NaA membrane are shown with some experimental results.
