Hydrotreating catalyst intermediate, hydrotreating catalyst, and preparation methods of hydrotreating catalyst intermediate and hydrotreating catalyst

Abstract

The present invention discloses a hydrotreating catalyst intermediate, a hydrotreating catalyst, and preparation methods of the hydrotreating catalyst intermediate and the hydrotreating catalyst. According to the present invention, the hydrotreating catalyst intermediate comprises a hydrogenation activity metal component, a carrier component and a specific organic compound, and can complete the vulcanization process without a hydrogen sulfide generation reaction and a vulcanization reaction between hydrogen sulfide and an active metal, such that the problem that the temperature increase is too rapid during the catalyst vulcanization process can be avoided; the hydrotreating catalyst is the vulcanization type hydrotreating catalyst having complete significance, and after the hydrotreating catalyst is loaded into the hydrogenation reaction device, the hydrogenation reaction temperature can be directly achieved so as to substantially shorten the startup time; and the catalyst has advantages of complete vulcanization, good metal dispersibility, and good hydrogenation property.

Description

technical field [0001] The invention relates to a hydrogenation treatment catalyst, in particular to a hydrogenation treatment catalyst intermediate, a hydrogenation treatment catalyst and a preparation method thereof. Background technique [0002] Conventional hydrogenation catalysts are in an oxidized state, but the substances that actually play an active role in actual use are in a sulfurized state, so the hydrogenation catalysts in an oxidized state need to be pre-sulfurized before use. The commonly used pre-sulfurization methods are in-vehicle pre-sulfurization and out-of-vehicle pre-sulfurization. The in-vehicle pre-sulfurization is to put the oxidized catalyst into the hydrogenation reactor, and pass hydrogen and sulfidation agent into the reactor during the heating process, so that It generates hydrogen sulfide, which converts the hydrogenation active metal from oxide to sulfide. External pre-sulfurization means that the catalyst is combined with the sulfurizing age...

AI Technical Summary

Problems solved by technology

In order to avoid excessive temperature rise, the vulcanization process heats up slowly, but this will cause the catalyst vulcanization time to be too long, which is not conducive to shortening the start-up time

[0008] Furthermore, the existing external presulfurization and internal presulfurization are both presulfurized or activated under the action of hydrogen, and hydrogenolysis reactions of oxidized hydrogenation catalysts will occur, and because the binding force between the active component and the carrier is often too high Strong, so that the hydrogenation catalyst cannot be completely vulcanized, resulting in insufficient vulcanization of the active metal component in the hydrogenation catalyst, poor dispersion of the active metal, and the inability of the active metal component to fully play its role, resulting in metal waste

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