Organic waste gases are common pollutants emitted in industries such as petrochemicals, light industry, plastics, printing, coatings, and others. If these gases are not properly treated and released directly into the atmosphere, they can cause severe environmental pollution and harm human health. Traditional methods of organic waste gas purification include adsorption, condensation, and direct combustion. These methods typically suffer from drawbacks such as secondary pollution, high energy consumption, and limitations by the concentration and temperature of organic waste gases. Catalytic combustion technology has transitioned from the experimental stage to the theoretical stage and is gradually being applied in industries such as petrochemicals, printing, materials, and wire processing. Below, we introduce the basic principles and characteristics of catalytic combustion:

The Fundamental Principle of Catalytic Combustion:

Catalytic combustion is a typical gas-solid phase catalytic reaction, with its essence being the involvement of active oxygen in deep oxidation. During the catalytic combustion process, the role of the catalyst is to reduce the activation energy, while concentrating the reaction species on the surface to enhance the reaction rate. With the aid of a catalyst, organic waste gases can undergo flameless combustion at a lower ignition temperature, oxidize and synthesize into compounds, and simultaneously release a large amount of heat energy.

Properties of Catalytic Combustion:

Low ignition temperature, energy-saving. Compared to direct combustion, catalytic combustion has the characteristics of low ignition temperature and low energy consumption. Under certain conditions, after reaching the ignition temperature, no external heat is required.

2. Broad Application Range. Catalytic combustion can treat almost all types of hydrocarbon organic waste gases and malodorous gases. For industries such as organic chemicals, coatings, and insulating materials, which emit low-concentration, multi-component waste gases with no recyclable value, the adsorption-catalytic combustion method shows good treatment effects.

3. High disposal efficiency with no secondary pollution. The purification rate of the catalytic combustion method for treating organic waste gases is generally above, and the final product is harmless, thus eliminating the issue of secondary pollution. Additionally, due to the low temperature, it can significantly reduce the formation of by-products.