Patent ID: 11935827
Assignee: SAUDI ARABIAN OIL COMPANY
Field: Chemical engineering (Chemistry)
Classification: CPC H  B | IPC B  H

Claim 0:
1. A method for making catalyst particles comprising:
providing post-framework modified ultra-stable Y-type (USY) zeolite in which a portion of aluminum atoms constituting a zeolite framework thereof is substituted with zirconium atoms and/or titanium atoms and/or hafnium atoms, wherein the post-framework modified USY zeolite is characterized by outer surfaces and pores which define inner surfaces;
impregnating a first portion of a total active metal component content of one or more active metal components on outer surfaces and/or on pore inner surfaces of the post-framework modified USY zeolite to form metal-loaded post-framework modified USY zeolite;
providing an inorganic oxide as a binder;
mixing and kneading the metal-loaded post-framework modified USY zeolite with the inorganic oxide binder to form a composite of post-framework modified USY zeolite and inorganic oxide binder, wherein the composite is characterized by outer surfaces and inner pore wall surfaces;
impregnating a second portion of the total active metal component content of the one or more active metal components on outer surfaces and/or on pore inner surfaces of the composite to form a metal-loaded composite of metal-loaded post-framework modified USY zeolite and inorganic oxide binder;
forming the catalyst particles from the metal-loaded composite of metal-loaded post-framework modified zeolite and inorganic oxide binder into extrudates;
thermally treating the extrudates; and, recovering calcined catalyst particles.