An Estimate of Surface Mobility of CO2on γ-Alumina and MgO-Modified γ-Alumina Above 500 K

✍ Scribed by Tatsuro Horiuchi; Toshihiko Osaki; Toyohiko Sugiyama; Kenzi Suzuki; Toshiaki Mori

• Book ID: 102581070
• Publisher: Elsevier Science
• Year: 1998
• Tongue: English
• Weight: 102 KB
• Volume: 204
• Category: Article
• ISSN: 0021-9797
• DOI: 10.1006/jcis.1998.5576

✦ Synopsis

In order to know the possibility of CO2 separation by surface diffusion with ceramic membrane at high temperature, permeability of CO2 was estimated from the heat of adsorption of CO2 on gamma-alumina and MgO-modified gamma-alumina. It is revealed that the too high heat of adsorption retards the mobility of CO2. Ordinary gamma-alumina was preferable for the CO2 separation. Estimated permeability of CO2 by surface diffusion was larger than that by molecular sieve mechanism. Copyright 1998 Academic Press.