CO exhaust gas treatment device Xiamen catalytic combustion

Description :

　　Catalytic combustion is suitable for purifying toxic and harmful gases such as combustible gases and vapors. However, for toxic and harmful gases such as large amounts of dust particles and mist droplets, it is easy to cause blockage of the catalytic bed, leading to a decrease in catalytic activity and thus reducing purification efficiency. The catalytic combustion purification method is almost applicable to all industrial production processes that emit hydrocarbons or odorous compounds.

　　Working principle of regenerative thermal oxidation furnace:

　　At high temperatures, the organic compounds VOCs in the exhaust gas are oxidized into corresponding carbon dioxide and water, thereby purifying the exhaust gas and recovering the heat released during oxidation and decomposition. When organic waste gas passes through the heat storage chamber, it is heated to above 760 ℃, causing VOCs in the waste gas to oxidize and decompose into CO2 and H2O in the oxidation chamber. The high-temperature airflow generated by oxidation passes through a specially designed ceramic heat storage body, which heats up the ceramic body and "stores heat". This "heat storage" is used to preheat the incoming organic waste gas, thereby saving fuel consumption for waste gas heating. Ceramic thermal storage bodies should be divided into two or more compartments. Each thermal storage system undergoes a sequence of processes such as thermal storage, heat release, and cleaning, repeating the cycle and working continuously. After the "heat release" of the heat storage system, a portion of the treated and qualified clean exhaust should be immediately introduced to clean the heat storage chamber to ensure that the VOCs removal rate is above 95%. Only after the cleaning is completed can the "heat storage" program be entered. Otherwise, residual VOCs will be discharged into the chimney with the flue gas, thereby reducing the treatment efficiency.

　　Catalytic combustion is a purification method that uses catalysts to oxidize and decompose combustible substances in exhaust gas at lower temperatures. So, catalytic combustion is also known as catalytic chemical conversion. Due to the acceleration of the oxidation decomposition process by the catalyst, most hydrocarbons can be completely oxidized by the catalyst at temperatures of 300-450 ℃.

　　Compared with the thermal combustion method, catalytic combustion requires less auxiliary fuel, consumes less energy, and has smaller equipment and facilities. However, the promotion and application of this method in industrial production processes have been affected by issues such as catalyst poisoning, replacement of catalytic beds, and high cleaning costs.

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• Catalytic combustion equipment