VOCs waste gas treatment discount Xiamen catalytic combustion

Description :

　　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.

　　The biological deodorization method utilizes microorganisms to degrade or convert organic pollutants in odorous gases into harmless or low-risk substances. The main methods include biological filtration, soil method, and packed tower biological deodorization method.

　　VOCs (volatile organic compounds) are a general term for a class of organic pollutants that are commonly present in the air and have complex compositions. They mainly include alkanes, alkenes, aromatic hydrocarbons, as well as various oxygen-containing hydrocarbons, halogenated hydrocarbons, nitrogen hydrocarbons, sulfur hydrocarbons, low boiling polycyclic aromatic hydrocarbons, and other substances. Among the 187 pollutants prioritized for control by the US EPA, 33 belong to volatile organic compounds. There are three main hazards that VOCs pose to the atmosphere. (1) Some are toxic and carcinogenic, posing a threat to human health; (2) Hydrocarbons and nitrogen oxides in VOCs react with ultraviolet radiation to generate ozone, which can lead to atmospheric photochemical smog events and pose a threat to human health and plant growth; (3) Participate in the formation of secondary aerosols in the atmosphere, which are mostly fine particles that are not easily deposited and can remain in the atmosphere for a long time. They have strong scattering power on light, thereby significantly reducing atmospheric visibility. At present, the atmospheric environment in most cities in China has shown three major composite pollution characteristics: regional haze pollution, ozone and acid rain, and VOCs are one of the extremely important promoters.

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• Catalytic combustion equipment