Organic waste gas is a common pollutant emitted by the petrochemical, light industry, plastics, printing, coatings and other industries. Organic waste gas often contains hydrocarbon compounds (aromatics, alkanes, olefins), oxygen-containing organic compounds (alcohols, ketones, organic acids, etc.), etc. If these waste gases are not treated and discharged directly into the atmosphere, they will cause serious pollution to the environment and endanger human health. Traditional methods for purifying organic waste gas include adsorption, condensation and thermal combustion. These methods often have disadvantages such as prone to secondary pollution, high energy consumption and susceptibility to organic waste gas concentration and temperature limitations. The emerging catalytic combustion technology has moved from the experimental stage to engineering practice, and has gradually been applied to processing industries such as petrochemicals, medicine, printing, and coatings. The catalytic combustion device is fully suitable for the purification of large-volume organic waste gas, has low operating costs, and fully considers the reliability of waste gas combustion, heat recovery and the service life of the equipment. The catalytic combustion method is to oxidize the organic pollutants in the exhaust gas into carbon dioxide and water at a lower temperature under the action of catalysts such as platinum and palladium. Due to the low ignition temperature, it is an ideal method for treating organic pollutants through catalytic reaction (without open flame), with the advantages of wide application range, simple structure, high purification efficiency, energy saving, and no secondary pollution.