Regeneration method and equipment of selective catalytic reduction (SCR) denitration catalyst

Abstract

The invention provides a regeneration method and regeneration equipment of a selective catalytic reduction (SCR) denitration catalyst. The regeneration method includes: 1) front-section cleaning process by removing dust and impurity particles on the catalyst; 2) activation process by immersing the dried SCR denitration catalyst in an activation liquid for activation reaction; 3) drying process by drying the SCR denitration catalyst in order to avoid the activated catalyst from deactivation and damage; and 4) re-forging process by placing the dried deactivated catalyst in a furnace, allowing mixed gas to pass through a mixing preheating furnace and then enter a regeneration reactor, and carrying out heat treatment regeneration of the deactivated catalyst in the furnace. The method solves the problems of low activity of the regenerated catalyst, low practicability and complex operation and so on in the prior art.

Description

technical field [0001] The invention belongs to the field of SCR catalyst regeneration, and in particular relates to a regeneration method and regeneration equipment for an SCR denitration catalyst. Background technique [0002] Due to the rapid development of human activities and economy, my country's environment has been severely damaged, and extreme weather has increased significantly, posing a serious threat to people's lives and property, causing heavy losses to the country, and hindering the sustainable development of the national economy. It also paid a huge price. [0003] my country's current total nitrogen oxide emissions have exceeded 18 million tons. If no effective control measures are taken, China's nitrogen oxide emissions will continue to increase in the next fifteen years, and may reach more than 30 million tons by 2020. my country is a large coal-fired country, and coal-fired power plants are the primary source of nitrogen oxide emissions, accounting for ab...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a regeneration method and regeneration equipment for SCR denitrification catalyst, which solves the problems of low catalyst regeneration activity, impracticality and complicated operation in the prior art, and the method and device are suitable for the regeneration treatment of SCR denitrification catalyst process, especially suitable for the type of catalyst deactivation due to clogging, this method can reduce the cost of catalyst replacement and prolong the service life of the catalyst

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