Method for preparing hydrocarbon hydroprocessing catalyst

Abstract

The invention relates to a method for preparing hydrocarbon hydrogenation catalyst. Wherein, said catalyst uses gamma-Al2O3 as carrier, uses VIB group and VIII group metal as active components; uses Ti as active agent. The invention adds organic Ti salt into the agglutination process that prepares aluminum hydroxide with carbonization method. And the catalyst preparation uses complete mixing method that adding alkali solution with Mo and/or W into the aluminum hydroxide dry powder, mixing until the aluminum hydroxide powder is wetted by alkali solution; adding the acid solution of Co and/or Ni; mixing and shaping into bars, drying, baking to obtain the catalyst. In said catalyst, the catalyst agent Ti has uniform distribution, and the property of catalyst is improved.

Description

technical field [0001] The invention relates to a preparation method of a hydrocarbon hydrogenation treatment catalyst, in particular to a preparation method of a hydrocarbon hydrogenation desulfurization catalyst. Background technique [0002] Hydroprocessing is an important process technology in hydrocarbon processing, mainly including hydrodesulfurization, hydrodenitrogenation, hydrocracking, etc. The key to hydroprocessing technology lies in the catalyst. At present, most catalysts for hydrocarbon hydroprocessing are alumina The carrier uses Mo and / or W and Ni and / or Co as active components. In order to obtain greater economic benefits, improving catalyst performance and reducing costs are the goals pursued in this field. [0003] Generally, simplifying the catalyst preparation process can greatly reduce the production cost of the catalyst, such as US Patent 4,443,558, which uses a complete kneading method instead of the "impregnation method" or "mixed impregnation comb...

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Problems solved by technology

[0007] CN 1324687A discloses a method for preparing titanium-containing and silicon-containing aluminum hydroxide by adding finely ground metatitanic acid and silicon-containing compound solution by carbonization method. Although the environmental pollution is reduced, due to the addition of solid particles (although the particle size is less than 65 μm) in the When sodium metaaluminate solution reacts with carbon dioxide to form a gel, aggregates will be produced, which will affect the particle size of aluminum hydroxide, and the distribution of titanium and silicon in aluminum hydroxide will not be uniform, which will reduce its performance