Preparation method for catalyst

Abstract

The invention discloses a preparation method for a catalyst, which is characterized in that in a dipping step, a catalyst carrier and a solution containing the active components are respectively input in an aslant arranged rotating cylinder, a material turning piece is arranged on the sidewall of the rotating cylinder, an active solution is injected in the rotating cylinder in an atomization mode, through the rotation of the rotating cylinder, under dipping by the active solution, and the catalyst carrier is capable of moving from a charging end at high position to a discharging end at low position of the rotating cylinder. According to the invention, the rotating cylinder capable of executing the dipping step in the preparation method is aslant arranged, so that the catalyst carrier is dipped by the active solution and simultaneously moves from the charging end to the discharging end, continuous preparation of the catalyst can be realized, and because that the material turning piece is arranged on the sidewall of the rotating cylinder, when the rotating cylinder is rotated, the catalyst carrier is capable of being turned over by the material turning piece, the catalyst carrier and the active solution are effectively contacted, and the dipping effect of the catalyst carrier is increased.

Description

technical field [0001] The invention relates to the field of preparation of catalysts, in particular to a preparation method of catalysts. Background technique [0002] In the catalyst preparation and production process, there are many production methods, such as impregnation method, roll coating method, precipitation method, mixing method, ion exchange method, gas phase synthesis method and so on. Among them, the impregnation method is a more commonly used method. In the impregnation method, the impregnation step of impregnating the active component in the active component solution onto the catalyst support is the most important step. [0003] In the prior art, the traditional equipment for realizing the above impregnation steps can refer to the impregnation tanks, impregnation baskets, impregnation mesh belts, impregnation drums, and impregnation drums recorded in "Catalyst Preparation Process Technology", Zhang Jiguang, P329-331. , Impregnation rolling machine, impregna...

AI Technical Summary

Problems solved by technology

However, although these impregnation equipment can accomplish the purpose of impregnating active components on the catalyst, there are many problems in these impregnation equipment and devices, such as intermittent operation, continuous production cannot be realized, and product quality is not stable, and the throughput Small defects, catalyst support structure damage and other problems

[0004] In addition, many diffusion-limited catalytic reactions and highly exothermic catalytic reactions require heterogeneous catalysts to meet the requirements of the reaction process. Traditional production equipment can no longer meet the requirements of producing heterogeneous catalysts.

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