A facile
and direct approach for the synthesis of mesoporous zeolite Y by using
[(CH3O)3SiC3H6N(CH3)2-C18H37]Cl as template
is presented. Under the basic condition of the Y synthesis system,
(CH3O)3Si– bonds hydrolyze to −Si–OH,
and yield −Si–O–Al– and −Si–O–Si–
linkages that anchor the template in zeolite framework. Afterward,
micelles formed by −C18H37 lead to the
formation of mesoporosity within zeolite Y crystals. This material,
which introduces intracrystalline mesoporosity into zeolite Y, shows
superior catalytic performance when used in heavy oil catalytic cracking.
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