Residual oil hydrotreatment catalyst carrier, catalyst and preparation method thereof

Abstract

The invention provides a residual oil hydrotreatment catalyst carrier, a catalyst and a preparation method thereof. The residual oil hydrotreatment catalyst carrier is spherical, and the outer diameter of the carrier is 5.0-10.0 mm; the residual oil hydrotreatment catalyst carrier internally comprises at least eleven large pore channels, wherein the first, second, third and fourth large pore channels are arranged in the spherical carrier and are connected end to end to form a circle, a square, a quasi-circle or a quasi-square shape; the fifth and sixth large pore channels are crossed at the center of the spherical carrier, and the first to sixth large pore channels integrally form a pore channel shaped like a Chinese character 'tian' or a pore channel shaped like a Chinese character 'tian'; the seventh large pore channel is intersected with the fifth large pore channel and the sixth large pore channel, and penetrates through the spherical carrier through the sphere center; the eighth large pore channel, the ninth large pore channel, the tenth large pore channel and the eleventh large pore channel extend inwards from the spherical surface and intersect with the end-to-end connectingpositions of the first large pore channel, the second large pore channel, the third large pore channel and the fourth large pore channel respectively; and the total volume of the large pore channelsaccounts for 10-50% of the volume of the spherical carrier. The catalyst prepared by loading the active component on the catalyst carrier has the characteristics of high hydrogenation activity, long service life and the like.

Description

technical field [0001] The invention relates to a catalyst carrier, a catalyst and a preparation method thereof for residual oil hydrogenation treatment, in particular to a catalyst carrier, a catalyst and a preparation method thereof for upflow residual oil hydrogenation treatment. Background technique [0002] As crude oil becomes heavier and worse, more and more heavy oil and residual oil need to be processed. The processing of heavy oil and residual oil not only needs to be cracked into products with low boiling points, such as naphtha, middle distillate oil and vacuum gas oil, but also to increase their hydrogen-carbon ratio, which requires decarbonization or Hydrogenation method to achieve. Among them, the decarbonization process includes coking, solvent deasphalting, heavy oil catalytic cracking, etc.; the hydrogenation process includes hydrocracking, hydrofining, hydrotreating, etc. The hydrogenation process can not only hydrogenate and convert residual oil, improv...

AI Technical Summary

Problems solved by technology

The catalyst is suitable as a hydrodesulfurization catalyst, and it needs to be graded before the hydrodemetallization catalyst to prolong the service life of the catalyst. Therefore, it is not suitable for use in an upflow reactor alone

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