Synthesis, Characterization and Properties of Clew Nano-Sized NaY Zeolite

Clew nano-sized NaY zeolite was synthesized from metakaolin by adding alcohol to the hydrothe-rmal synthesis system. Its structure was characterized by XRD, SEM, TEM, HREM, and its physicochemical properties and catalytic characteristics were studied. The results show that the size of the product with clew morphology is 100~150 nm, relative crystallinity 59.61%, and Si/Al ratio 5.02. Compared with conven-tional NaY zeolite, this kind of nano-sized zeolite has a larger surface area and mesopore volume, better thermal and hydrothermal stability, higher cracking activity, higher gasoline selectivity, lower coke and dry gas selectivity. So it has good industry application prospects.