Manufacturer supplies catalytic combustion equipment Xiamen catalytic combustion

Description :

　　The absorption method uses low volatile or non-volatile solvents to absorb VOCs, and then separates them based on the differences in physical properties between VOCs and absorbents.

　　The gas containing VOCs enters the absorption tower from the bottom and comes into contact with the absorbent from the top of the tower in reverse flow during the upward process. The purified gas is discharged from the top of the tower. After absorbing VOCs, the absorbent enters the top of the stripping tower through a heat exchanger and desorbs under conditions where the temperature is higher than the absorption temperature or the pressure is lower than the absorption pressure. The desorbed absorbent is condensed by a solvent condenser and returned to the absorption tower. The extracted VOCs gas passes through the condenser and gas-liquid separator before leaving the stripping tower as relatively pure VOCs gas, which is then recycled and reused. This process is suitable for gas purification with high VOCs concentration and low temperature, and requires corresponding process adjustments in other situations.

　　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 main features of RCO type exhaust gas treatment catalytic combustion equipment and high-temperature air combustion technology are:

　　1. Adopting a high-temperature air flue gas waste heat recovery device, alternately switching between air and flue gas to flow through a thermal storage body, can largely recover the sensible heat of high-temperature flue gas, thus achieving waste heat recovery;

　　2. Preheat the combustion air to a temperature level of over 1000 ℃ to form a new type of flame that is distinct from traditional flames such as diffusion flames and premixed flames, creating an excellent uniform temperature distribution inside the furnace;

　　3. By organizing combustion in a lean oxygen state, the significant generation of high-temperature thermal nitrogen oxides (NOx) under normal conditions is avoided. Therefore, this technology has generated significant economic and social benefits in practical applications.

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• Catalytic combustion equipment