Pore Structure of Cracking Catalysts

Steam Deactivation Kinetics of Zeolitic Cracking Catalysts

“…While amorphous catalysts deactivate thermally as well as hydrothermally, thermal deactivation is a significantly slower process (John and Mikovsky, 1961). Further, Dobres et al (1966) have shown that the porosity and surface area distributions of equilibrium catalysts are more similar to steam-aged than thermally aged catalysts. Most of the above work dealt with changes in the physical structures of the catalysts, without relating these to changes in catalytic activity.…”