Solid state ion exchange in zeolite bodies

摘要

Adsorption of N_2, O_2, Ar and CH_4 in zeolites Type Y and Mordenite, both in powder and pellet forms has shown occurrence of solid state ion exchange during pelletization using clay binders. Temperature programmed desorption of ammonia has shown depleted surface acidity as a consequence of solid state ion exchange phenomenon leading to lower catalytic activity in zeolite pellets.