Hydrodesulfurization catalyst and preparation method thereof

Abstract

The invention belongs to the technical field of catalyst materials, and particularly relates to a hydrodesulfurization catalyst and a preparation method thereof.The preparation method includes the steps that S1, an aluminum oxide waste agent is roasted at the temperature of 450-550 DEG C, and then a product A is obtained; s2, the product A is subjected to mixing, kneading and forming, and a formed matter B is obtained; s3, impregnating the molded substance B through an impregnating box, firstly putting the molded substance B into a placement barrel, then filling a box body with an impregnating solution containing Co and Mo, then putting the placement barrel into the box body to be immersed, then driving the placement barrel to rotate through the rotation of a motor, and further performing saturated impregnation on the molded substance B; and S4, drying and roasting the impregnated material in S3 to obtain the hydrodesulfurization catalyst. The invention discloses a material dipping box, and aims to solve the problems that when materials are dipped, the materials are generally directly put into the box body, so that the dipped materials are inconvenient to take out, and dipping liquid is attached to the outer sides of the materials after the dipped materials are taken out, so that the dipping liquid is wasted.

Description

technical field [0001] The invention belongs to the technical field of catalyst materials, in particular to a hydrodesulfurization catalyst and a preparation method thereof. Background technique [0002] In recent years, with the increasingly inferior quality of petroleum raw materials, the content of sulfur impurities in raw materials has continued to increase. Therefore, in the process of petroleum refining, the flue gas discharged into the atmosphere contains more and more harmful gases of SOX, which is seriously It pollutes the environment; therefore, more commonly used desulfurization methods, including hydrodesulfurization, are used in the petroleum refining process for desulfurization treatment. Hydrodesulfurization is catalytic hydrogenation at a certain temperature and pressure, so that the S in the petroleum fraction is converted into H2S form removed. [0003] In the prior art, when the material is impregnated, the material is generally put directly into the box,...

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Problems solved by technology

[0004] In order to make up for the deficiencies of the existing technology, when impregnating the material, the material is usually put directly into the box, which is inconvenient to take out the impregnated material, and after the impregnated material is taken out, the outside of the material will adhere to the There is impregnating liquid, which causes the waste of impregnating liquid, a kind of hydrodesulfurization catalyst proposed by the present invention and its preparation method

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