Residual oil hydrogenation catalyst, as well as preparation method and application thereof

Abstract

A residual oil hydrocracking catalyst is benchmarked against the total quantity of catalysts, and comprises 2 wt%-20 wt% of a ferric oxide hydrate, 27 wt%-55 wt% of a molecular sieve, and 30 wt%-70 wt% of a heat-proof inorganic oxide carrier. Preferably, the catalyst comprises the ferric oxide hydrate and a catalytic cracking spent catalyst. The catalyst can be prepared in a coprecipitation method, and according to Fe, the adding amount of the catalyst is 0.1 wt%-1.0 wt% of the amount of the residual oil raw material. The catalyst provided by the invention is suitable for hydrocracking asphaltene super heavy oil with high metallic content and inferior residual oil, has the advantages of simple preparation method, low cost, and high light oil yield, and does not contain noble metals.

Description

technical field [0001] The present invention relates to a residual oil hydrocracking catalyst for producing light fuel, a preparation method of the catalyst, and a residual oil hydrocracking method using the catalyst. Background technique [0002] The increasingly heavy and inferior quality of the world's petroleum resources and the contradiction between the rapid economic growth and the increasing demand for petroleum products have caused refineries to pay more and more attention to heavy oil lightening technology. Among them, slurry bed residue hydrocracking The process has strong competitiveness and good development prospects because it can handle low-quality raw materials with high residual carbon and high metal content. Catalyst is one of the core technologies of residual oil hydrocracking process. It is very important for reducing the severity of the reaction, improving the reaction efficiency, improving the oil yield, reducing the coke yield, thereby reducing the proc...

AI Technical Summary

Problems solved by technology

Spent catalysts have low activity and contain a certain amount of heavy metals. How to properly dispose of spent catalysts has always been a topic of concern to the industry.

[0006] CN101543783A proposes to use calcined catalytic cracking waste catalyst as a carrier, load Mo oxide or composite oxide of Mo and Ni, Fe as residual oil hydrocracking catalyst, said catalyst adopts equal volume impregnation, then drying, high temperature roasting , the active component is a mono- or multi-element oxide containing Mo, and Mo is expensive, and if it is recycled, the cost will be higher

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