Preparation method of metal oxide loaded nano zeolite particle catalyst

The invention belongs to the technical field of zeolite molecular sieve catalyst preparation, and particularly relates to a preparation method of a metal oxide loaded nano zeolite particle catalyst, which comprises the following steps: treating industrial gamma-alumina balls with a quaternary ammonium base aqueous solution, mixing the treated industrial gamma-alumina balls with a zeolite precursor solution, and crystallizing under a hydrothermal condition to obtain the metal oxide loaded nano zeolite particle catalyst. Then a two-step roasting method is used to obtain the alumina-loaded nano zeolite particle material, the key problems of large zeolite dosage and poor dispersibility in the hydrocracking catalyst are solved, and finally the transition metal is combined with the alumina-loaded nano zeolite particle material to obtain the metal oxide-loaded nano zeolite particle catalyst. The nano zeolite particles prepared by the method regulate the surface acidity of aluminum oxide, and the ...