Catalyst capable of directly loading reactive metals on metallic packing

Abstract

The invention discloses a catalyst capable of directly loading reactive metals on metallic packing. The catalyst is prepared by the following method, and the method comprises the following steps: 1, filling the metallic packing into a reactor, wherein the filling volume of the packing is 80-90% of the volume of the reactor, and replacing a treatment device and a pipeline system with nitrogen; 2, pumping a treatment solution in a solution storage tank into a preheater by a pump, enabling the solution to enter the reactor in the first step, condensing the gas exhausted from the reactor and emptying, collecting the discharged liquid into the solution storage tank to serve as the treatment solution to continuously participate in treatment; continuously treating for 1-2 hours in the reactor, thereby obtaining the reactive metal / metallic packing catalyst. The catalyst prepared by the method disclosed by the invention is high in reactive metal utilization rate, the heat and mass transfer superficial area is large, the resistance is low, and any inner-diffusion effect is avoided in the reaction process.

Description

technical field [0001] The invention belongs to the field of catalytic reactions, in particular to a catalyst directly supporting active metals on metal fillers. Background technique [0002] Supported metal catalysts are an important class of industrial catalysts, widely used in many important reaction processes in the chemical industry. It is usually supported by porous oxides with high specific surface area. Due to the internal diffusion process of porous oxide supports, the heterogeneous catalytic reaction rate will be reduced and the selectivity will be poor. Usually, reducing the particle size of the catalyst and increasing the pore volume and pore diameter of the catalyst are used to increase the effective factor of internal diffusion and reduce the influence of internal diffusion, but it will increase the pressure drop of the catalyst bed, reduce the mechanical strength, and reduce the specific surface, etc. Other issues affecting catalytic efficiency. On the othe...

AI Technical Summary

Problems solved by technology

Although the above method can directly support active metals on the surface of metal materials, this process needs to be completed with the help of supported catalysts. The treatment process requires filtration and separation of catalysts, which is not only complicated to operate, but also has great restrictions on the structure of the metal components to be processed. , only applicable to reactor metal walls, stirring paddles, thermocouple sleeves, cooling coils, and a small number of component types that can be attached to metal baffles, metal tubes, and wire mesh, and the load type used after treatment needs to be solved Recovery and Utilization of Catalyst Active Metals