Integrated regeneration system and method of mobile SCR (Selective Catalytic Reduction) denitrification catalyst

Abstract

The invention provides an integrated regeneration system and method of a mobile SCR (Selective Catalytic Reduction) denitrification catalyst. The system consists of a lifting system for carrying a to-be-regenerated SCR denitrification catalyst module, a regeneration system for regenerating the to-be-regenerated SCR denitrification catalyst module, and a support plate for bearing the lifting system and the regeneration system. The invention further discloses a regeneration method of the SCR denitrification catalyst. The special lifting system designed by the integrated regeneration system of the mobile SCR denitrification catalyst disclosed by the invention is capable of realizing safe transportation of the to-be-regenerated SCR denitrification catalyst module and turning in processes such as cleaning and regenerating, and improving a regeneration effect of the denitrification catalyst, and has the advantages of decreasing floor space of the regeneration device, reducing transportation processes, and reducing abrasion to the to-be-regenerated catalyst by realizing all-pool-in-one with reasonable design and layout.

Description

technical field [0001] The invention belongs to the field of flue gas purification, and in particular relates to a mobile SCR denitration catalyst integrated regeneration system and a method thereof. Background technique [0002] The catalytic device is also called SCR selective catalytic device, and there are many reasons for the deactivation of the SCR denitrification catalyst used. [0003] One of the reasons: the catalyst surface or pores are blocked. During the SCR denitrification catalytic process, the catalyst hole device will slowly block and form a thin wall with a thickness of about 1-100 μm, which reduces the effective contact between the flue gas and the catalyst, resulting in the inability to remove NO x and NH 3 converted to N 2 and H 2 O. In order to improve the use efficiency of SCR denitration catalyst as much as possible, a large number of researches on the cleaning methods of catalyst surface area pore blockage have been carried out, including steam c...

AI Technical Summary

Problems solved by technology

This method of immersion regeneration has the following disadvantages: on the one hand, the investment in the regeneration solution is high; on the other hand, after the regeneration solution is polluted by arsenic, subsequent treatment is difficult.

In order to achieve the purpose of regeneration, it is necessary to regularly turn over the catalyst module to be treated in the cleaning tank and the regeneration tank. Since the volume and weight of the catalyst module are relatively large, and the catalyst wall is thin, it is not suitable to use a strong stirring or handling device. Some patents did not conduct targeted research on the handling of the denitrification catalyst regeneration module;

[0018] 2. In order to realize the regeneration of the SCR denitrification catalyst, the existing patents are to set up corresponding devices for each link in the regeneration process, which greatly increases the area occupied by the regeneration device and the cost of infrastructure construction; at the same time, due to the various aspects of the regeneration process The links are interlocking, and multiple process devices need to be transported multiple times, which may easily cause damage to the catalyst module during the transport process;

[0019] 3. Since the denitrification catalyst is the most important part of the denitrification device, in response to emergencies, the existing regeneration device needs to transport the catalyst to be regenerated to the relevant regeneration enterprise, which is easy to cause damage to the catalyst during transportation, and will also prolong the regeneration time. Severe cases may cause long downtime

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