Precautions for using specialized catalysts for waste incineration and digestion

Precautions for using specialized catalysts for waste incineration and digestion:

①  The installation of dedicated catalysts for garbage incineration and digestion should be sealed with steel frames. The installation of the catalytic bed should be divided into two or more sections, and the channels should be aligned as much as possible; The temperature of the first section needs to be controlled below 800 ℃.

②  Before using the dedicated catalyst for waste incineration and digestion, it should be preheated to above 400 ℃ with fresh air before introducing waste incineration (digestion) gas, otherwise it may cause carbon deposition or overheating.

③  At low temperatures, a large amount of waste incineration (digestion) exhaust gas enters the catalytic bed, causing the catalyst to "suffocate" and temporarily deactivate.

④  Compounds containing sulfur, phosphorus, arsenic, halogens, and heavy metal compounds can react with active ingredients, leading to long-term deactivation of the catalyst; Various acidic gases and impurities should be pre treated with flue gas.

⑤  Dust, carbon deposits, and high boiling viscous substances adhere to the surface of the catalyst, covering the active sites of the catalyst, resulting in the loss of catalytic activity; Flue gas filtration pretreatment should be adopted.

⑥  Long term high temperatures above 800 ℃ in the first stage of the catalytic bed can cause aggregation or sintering of the catalyst support and active components, resulting in a significant reduction in the number of active sites and ultimately deactivation; The first section of the catalytic bed should exchange heat in a timely manner.