VOCs waste gas treatment ranking Xiamen catalytic combustion

Description :

　　Catalytic combustion device refers to a device or equipment that burns under the action of a catalyst. The working principle of a catalytic combustion device is to use a catalyst to carry out flameless combustion of organic waste gas at a lower ignition temperature, decomposing the organic waste gas into non-toxic carbon dioxide and water vapor. The catalytic burner electrical control system consists of PLC controller, text display, frequency converter, igniter, ultraviolet sensor, thermocouple and other electronic control equipment, as well as a fan. In addition, the ratio of gas to air is regulated by a zero pressure valve. The entry also provides examples of HC series organic gas catalytic combustion devices and LF-VC direct catalytic decomposition oxidation devices, as well as the unstable factors and management measures in the use of catalytic combustion devices.

　　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.

　　RCO type exhaust gas treatment catalytic combustion equipment, principle of thermal storage combustion technology: When the ambient temperature air is switched into the thermal storage chamber 1 by the reversing valve, it is heated when passing through the thermal storage chamber (ceramic balls or honeycomb bodies, etc.), and the ambient temperature air is heated to near the furnace temperature in a very short time (generally 50-100 ℃ lower than the furnace temperature). After the high-temperature hot air enters the furnace, it draws the gas in the surrounding furnace to form a lean and oxygen deficient high-temperature airflow with an oxygen content much lower than 21%. At the same time, fuel (fuel or gas) is injected into the vicinity of the lean and high-temperature air, so that the fuel burns in a lean oxygen (2-20%) state; At the same time, the flue gas after combustion in the furnace is discharged into the atmosphere through another heat storage chamber. The high-temperature flue gas in the furnace transfers sensible heat to the heat storage body when passing through it, and then the low-temperature flue gas at 150-200 ℃ is discharged through a reversing valve.

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• Catalytic combustion equipment