Ultrafast synthesis of high-silica Beta zeolite from dealuminated MOR by interzeolite transformation for methanol to propylene reactions

A novel interzeolite transformation method was developed to synthesize the large pore Beta zeolite with high Si/Al ratio. and less defects within 3 h. Such high-silica Beta showed a long lifetime in comparison to the high-silica Beta prepared via the post-synthesis method (Beta-DA) and hydrothermal method in F medium (Beta-F), owing to its nano-size and defect-less crystal.