Device for preparing cerium-based catalyst

Abstract

The invention discloses a device for preparing a cerium-based catalyst and belongs to the technical field of sintering flue gas treatment. The device provided by the invention comprises a reaction chamber and an oxalic acid pool, wherein the oxalic acid pool is arranged in an upper part of the reaction chamber; an oxalic acid dropper is arranged below the oxalic acid pool; the oxalic acid dropperis used for dropping an oxalic acid solution into the reaction chamber; heating and insulating components are arranged outside the oxalic acid pool and the oxalic acid dropper; the heating and insulating components are used for heating and insulating the oxalic acid pool and the oxalic acid dropper; an ice-water bath pool is arranged outside the reaction chamber; the ice-water bath pool is used for water-bath cooling of the reaction chamber. The device provided by the invention ensures stability and performance of products, and also ensures that the dropped oxalic acid solution can be uniformly and rapidly mixed with a reaction solution; the prepared cerium-based catalyst improves removal efficiency of dioxin and nitrogen oxides.

Description

technical field [0001] The invention belongs to the technical field of sintering flue gas treatment, and relates to a device for preparing a cerium-based catalyst. Background technique [0002] Dioxins have strong carcinogenic and teratogenic effects. Because of their high toxicity, dioxins are extremely difficult to degrade in the environment, can be enriched through the food chain, have high fat solubility, and can be transported in the atmosphere for long distances to affect the regional and even global environment. Known as the "poison of the century". With the recognition of the hazards of dioxins in human society, the "Stockholm Convention on Persistent Organic Pollutants" came into effect globally on May 17, 2004. On June 25 of the same year, my country's tenth National People's The "Convention" was approved at the meeting and entered into force for China on November 11. [0003] Then in June 2012, China promulgated the "Steel Sintering and Pelletizing Industry Air P...

AI Technical Summary

Problems solved by technology

The disadvantage of this application is that it needs to use expensive titanium dioxide (20,000 / ton) and tungsten trioxide (150,000 / ton)

The disadvantage of this application is that it needs to go through multiple mixing processes, and the operation is complicated. Although it can reduce the dioxin content in the flue gas, the effect on dioxin emission reduction is limited.

Images