Can catalytic combustion environmental protection equipment be used for waste gas treatment?

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The catalytic combustion treatment equipment for organic waste gases, produced by Green Island Environmental Protection, features high purification efficiency thanks to activated carbon adsorption and desorption. This equipment mainly consists of a waste gas collection system and a treatment system. The treatment process of such equipment comprises five main stages: particle removal stage, gas adsorption stage, heating and catalysis stage, gas desorption stage, and control system stage. The catalytic combustion treatment equipment for organic waste gas uses activated carbon to absorb such waste gas; it takes advantage of the ability of the micropores in activated carbon to absorb organic substances, thereby capturing the organic solvents present in waste gas with high flow rates but low concentrations and concentrating them. The gas that has been purified through this adsorption process meets the required standards and can be released directly into the atmosphere. The organic waste gas enters the combustion furnace via a blower, and the temperature is raised to around 250–300°C through electric heating. Working principle of catalytic combustion treatment equipment for organic waste gas: Organic waste gas is fed into the oxidation furnace via a blower, where it is heated by fuel oxidation, raising the temperature to around 250–300°C. At this temperature, the organic components in the exhaust gas are oxidized and decomposed into carbon dioxide and water under the action of the catalyst. Meanwhile, the hot flue gas resulting from this reaction enters a ceramic regenerator with a special structure, where the majority of the heat is absorbed by the regenerator (over 95%). Once the temperature drops to near that of the inlet, the gas is discharged through the chimney, thereby achieving the purpose of purifying the exhaust gas. The heat absorbed by the regenerator is then used to preheat subsequent exhaust gas, which helps to reduce the reaction temperature and minimize the consumption of materials. A catalytic combustion device refers to a device or apparatus that burns under the action of a catalyst. The working principle of a catalytic combustion device is to use a catalyst to enable the combustion of organic waste gases at a lower ignition temperature, without the formation of flames, thereby breaking down these organic waste gases into non-toxic carbon dioxide and water vapor. The electrical control system of the catalytic burner consists of a PLC controller, a text display, an inverter for speed control, an igniter, ultraviolet sensors, thermocouples and other electrical control devices, as well as a fan; additionally, a zero-pressure valve is used to regulate the ratio of gas to air. The entry also provides examples of the HC series of organic gas catalytic combustion devices and the LF-VC series of direct catalytic decomposition oxidation devices, as well as the safety hazards associated with the use of catalytic combustion devices and the management measures to address them. Catalysts used for catalytic combustion can be classified as follows: ① Precious metals: platinum, palladium, ruthenium, etc. Precious metal catalysts have advantages such as high oxidation activity and ease of recovery; despite drawbacks like limited availability, high cost, and poor resistance to poisoning, they remain the main catalysts used in various countries. ②Non-precious metals: mainly oxides of transition elements as well as oxides of rare earth elements. Single-component oxides, such as copper oxide (CuO) and nickel oxide (NiO), etc. Single-component oxides have poor heat resistance and low activity, which limits their applications. In the future, mixtures of two or more metal oxides will be used, such as manganese dioxide-copper oxide (3:2) complexes, iron oxide-chromium oxide complexes, copper oxide-chromium oxide complexes, spinel-type complexes of cobalt and manganese, and chromates of copper, manganese, nickel, and zinc. Although composite oxides can improve certain catalytic properties, their oxidation activity is still inferior to that of precious metals. In addition, there are also metal sulfides such as the sulfides of thorium, nickel, molybdenum, and cobalt. Such catalysts are generally suitable only for the catalytic combustion of sulfur-containing hydrocarbons, and their operating temperature ranges from 300 to 400°C; they tend to decompose at higher temperatures. Technical features of equipment for the catalytic combustion treatment of organic waste gases: 1. Low operating costs – RCO generally allows the heating chamber in the purification unit to function without additional heating once the concentration of organic waste gases reaches a certain level (above 1000 mg/m3), thereby saving costs ； 2. Does not produce secondary pollutants such as nitrogen oxides (NOX) ； 3. Fully automatic control with convenient operation management ； 4. As it is a flameless combustion process, it offers good safety features and a purification efficiency of over 99%, making it particularly suitable for treating gases that are emitted continuously ； 5. The heat generated by the combustion of exhaust gases was reused, reducing energy consumption ； High heat recovery efficiency, with a heat recovery rate of ≥95%.