High performance hydrocracking catalyst and process for preparing same

Abstract

This invention is one kind of high capability hydrogenation cracking catalyst and its preparing method, it belongs to new material, oil refining, petrochemical industry and energy technique field. Metal active component is carried by complex carrier, the catalyst prepared not only has high hydrocracking activity, but also high hydrodesulfurization activity, it can be use to deeply remove sulfur and nitrogen and other mixed atoms when in ifp basf hydrocracking process of lightening heavy oil fraction. Complex carrier is generated by interpose hole molecular sieve and zeolite molecular sieve. The central hole of complex carrier is propitious to highly disperse of active metal and reduce inside diffusional resistance of reactant molecule, and hydrogenation center and cracking center can be provided by acidity of zeolite molecular sieve. The beneficial effect of this invention is that dibenzanthracene thiophene and its derivant can fully transformed, cracked product in products can almost more than 80%. It is mainly used in lightening of heavy oil fraction in oil and coal liquid processing, sulfur, nitrogen and other mixed atoms can be removed at the same time.

Description

Technical field [0001] The invention belongs to the technical fields of new materials, petroleum refining, petrochemicals and energy. Background technique [0002] Hydrocracking is one of the deep processing processes of petroleum and coal liquids. Under the action of a catalyst, heavy distillate oil is cracked into light distillate oil in a hydrogen atmosphere. The hydrogenation process is usually carried out at a higher temperature, and the energy consumption is generally high, and the process needs to consume a large amount of expensive hydrogen. Therefore, it is objectively required that the hydrocracking process can be combined with the hydrorefining process with similar reaction conditions to make the heavy oil lighter while removing sulfur, nitrogen and other heteroatoms in order to produce clean fuels and high-quality chemicals. raw material [0003] The traditional hydrocracking catalyst is a dual-functional catalyst made of a composite carrier containing Y zeolite and a...

AI Technical Summary

Problems solved by technology

However, mesoporous molecular sieves are weak in acidity and do not have high hydrocracking activity