New Insight into Seeding Process Leading to Improved Zeolitic Acidity and Surface Properties for Its Catalytic Application in Propane Aromatization
CATALYSIS TODAY(2021)
Abstract
•ZSM-5 zeolites were synthesized with the aid of Silicalite-1 seed.•Seeding decreased the particle size and formed plenty of stacking mesopore.•Seeding lowered the bulk acid density and generated an aluminum-rich surface.•Better Zn distribution was obtained with much more (ZnOH)+ active sites.•Propane aromatization stability was improved with no obvious internal coke.
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Key words
Seed,Zn/ZSM-5,Propane aromatization,BTX,Coke,Deactivation
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