Applicable scope and operating principle of catalytic combustion equipment
Release time:
2023-04-14 09:17
Applicable scope of catalytic combustion equipment
1. Used for the purification and treatment of mixed waste gases such as benzene, alcohol, ester, phenol, ether, alkane, etc. in solvents;
2. Suitable for exhaust gas purification in industries such as enameled wires, machinery, motors, chemicals, instruments, automobiles, engines, plastics, electrical appliances, etc;
3. Suitable for various drying channels, printing ink, motor insulation treatment and other drying assembly lines.
① Working principle of catalytic combustion
Catalytic combustion is a typical gas-solid catalytic reaction, which essentially involves the oxidation of reactive oxygen species. In the catalytic combustion process, the role of the catalyst is to reduce the activation energy, while the catalyst surface has adsorption effect, which enriches the reactant molecules on the surface, increasing the reaction rate and accelerating the reaction process. With the help of catalysts, the exhaust gas can undergo flameless combustion under lower ignition temperature conditions, and oxidize and decompose into CO2 and H2O, while releasing a large amount of heat energy, thus achieving the method of removing substances from the exhaust gas.
In the process of catalytic combustion of exhaust gas, the exhaust gas is sent by a fan through a pipeline to a heat exchanger, heated to the ignition temperature required for catalytic combustion, and then burned through the catalyst bed. Due to the presence of the catalyst, the ignition temperature of catalytic combustion is about 250-300 ℃, which is lower than the combustion temperature of direct combustion method 650-800 ℃, so the energy consumption is much lower than that of direct combustion method.
② Catalytic combustion purification of exhaust gas
After pre-treatment, the waste gas passes through the flame arrester and enters the heat exchanger to raise the temperature of the waste gas to the catalytic reaction temperature (250-300 ℃). Then it enters the catalytic reaction bed, and under the action of the catalyst, the exhaust gas undergoes an oxidation reaction to generate water and carbon dioxide, and the heat is released. The high-temperature gas after reaction enters the heat exchanger again, undergoes heat exchange and cooling, and is discharged into the atmosphere at a lower temperature through an induced draft fan.
keyword:
previous page
next page
Related News
How to prevent scale in the use of boilers
With the continuous development of society and the continuous improvement of people's living standards, boilers play an increasingly important role in people's daily lives, including power generation boilers, steam boilers in industrial boilers, bath boilers and hot water boilers in civil boilers, and various types of boilers. These boilers will encounter the danger of "scale" during use. What is scale? What are the hazards? How to prevent and govern? Next, I will provide you with a detailed explanation.
The approximate process flow of catalytic combustion equipment
Preheating: Preheating is the basic process form of catalytic combustion. The exhaust gas temperature is below 100 ℃ and the concentration is also low, so heat cannot be self-sufficient. Therefore, before entering the reactor, it needs to be heated in the preheating chamber. After combustion and purification, the gas exchanges heat with the untreated exhaust gas in the heat exchanger to recover some of the heat. This process usually uses gas or electric heating to raise the temperature to the ignition temperature required for the catalytic reaction.
With the continuous deterioration of the environment, China also advocates environmental protection. The existing catalytic combustion equipment is not only environmentally friendly, but also recyclable
No. 51 Jinma Road, Yuhua District, Shijiazhuang City, Hebei Province, West America Wuzhou MOCO1403
QIGONG