In this study,zeolite catalysts,in which HY zeolite was used as active component and alumina gel,silica-alumina gel and titania-alumina gel as binders,were prepared for removal of trace olefin in aromatics.

The acetalization and ketalization of various aldehydes and ketones with catechol by using HY zeolite as catalyst were studied.

Using trimethylphosphine(TMP) and d5-pyridine (deuterated pyridine) as the basic probe molecules, the concentrations of Bronsted acid sites on both HY zeolite and dealuminated HY zeolite have been quantitatively determined using solid-state 1H and 31P magic-angle spinning(MAS) NMR.

The HY molecular sieve was prepared bv the NaY molecular sieve catalyst after ionic exchan- ging and calcination process.

The grafting reaction of tetrabutyl tin(SnBu_4)on surface of Pt/HY molecular sieve supercages was studied in vacuum.

The alkylation of aniline with isopropanol was studied over HY molecular sieve catalysts.

The isomerization reaction of α-pinene,βpinene and their mixed system catalyzed by HY molecular sieves was studied.

The effects of the acidity and pore channel structure of zeolite on hydro-isomerization performances of n-hexane over different Pt/zeolite catalysts were investigated.