A kind of heavy oil hydrogenation catalyst containing pyrite and its preparation and application

Abstract

The invention relates to a pyrite-containing heavy oil hydrogenation catalyst, and preparation and application thereof. The heavy oil hydrogenation catalyst is composed of pyrite powder and a dispersion medium, wherein the pyrite powder accounts for 5-70 wt% of the catalyst; and on the basis of the dispersion medium, the dispersion medium contains 80-99% of base oil, 0.05-10 wt% of surfactant, 0.05-10 wt% of solid thickening rheological agent and 0.5-2 wt% of oleic acid. The heavy oil hydrogenation catalyst provided by the invention has the advantages of high catalytic-activity solid content, favorable mixing capacity with heavy oil raw oil, and favorable catalytic effect in heavy oil hydrocracking or modification in a suspension bed or slurry-state bed.

Description

technical field [0001] The invention relates to a heavy oil hydrogenation catalyst. More specifically, it is a catalyst containing pyrite powder for hydrogenation of heavy oil, and the preparation method and application of the catalyst. Background technique [0002] With the gradual scarcity of conventional oil resources, the proportion of heavy oil, especially low-quality heavy oil, in the total oil is increasing. How to efficiently convert heavy oil has become a huge challenge in the energy field. The heavy oil referred to above includes asphalt, oil sands, shale oil, residual oil with a boiling point higher than 524°C, etc. Its characteristics are: high asphaltene and residual carbon content, high metal nickel and vanadium content, the total content is generally not less than 200μg / g, high S and N compound content, and high apparent viscosity at normal temperature and pressure. Inferior heavy oil is prone to clogging pipelines and reactors and producing coke due to accu...

AI Technical Summary

Problems solved by technology

[0008] The object of the present invention is to provide a heavy oil hydrogenation catalyst containing pyrite powder, its preparation method and application. What is to be solved is that in the slurry bed or suspension bed hydrogenation process using solid powder catalyst, the solid powder catalyst The technical problem of poor stable dispersion performance in heavy oil feedstock oil

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