A kind of hydrogenation catalyst and preparation method thereof

Abstract

The invention discloses a hydrogenation catalyst and a preparation method thereof. The catalyst preparation method first prepares a wet filter cake material, then mixes it with an industrial pseudo-boehmite raw material, adds an extrusion aid and kneads it, and then it is dried and roasted to obtain hydrogenation Catalyst carrier; after further supporting active metal components, drying and calcining to obtain a hydrogenation catalyst. The hydrogenation catalyst prepared by the method of the invention has good mechanical properties, high strength and good wear resistance, and is especially suitable for the fluidized bed hydrogenation process. The preparation method of the hydrogenation catalyst has simple process and low energy consumption, and is suitable for large-scale production of the fluidized bed catalyst.

Description

technical field

[0001] The invention belongs to the field of catalytic materials, in particular to a hydrogenation catalyst and a preparation method thereof. Background technique

[0002] Heavy oil or residual oil contains a large amount of macromolecular aromatic hydrocarbons. In the process of hydrotreating, the catalyst needs to have larger pores to meet the requirement of macromolecular aromatic hydrocarbons entering the reaction active zone. Usually macroporous pseudo-boehmite is used as the raw material of the residue hydrogenation catalyst carrier, but the carrier prepared by macroporous material has poor mechanical properties, low compressive strength, and is increasingly important in the resid hydrogenation fluidized bed treatment process. The back-mixed flow also puts forward higher requirements for the wear resistance of the catalyst. However, the pseudo-boehmite with macroporous structure prepared by the current pseudo-boehmite production process has a low pepti...

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