Catalytic Combustion

Catalytic combustion equipment is a highly efficient, energy-saving, and environmentally friendly organic waste gas treatment device, primarily used to treat volatile organic compounds (VOCs) and some odorous gases in industrial emissions. Its principle is to use precious metal catalysts (such as platinum and palladium) to induce a flameless oxidation reaction of organic matter at a low temperature, ultimately converting it into harmless carbon dioxide and water vapor, thereby purifying the waste gas.

This equipment features low operating temperatures, low energy consumption, and fast startup. It is particularly suitable for the continuous treatment of medium- to high-concentration, flammable organic waste gases. It is widely used in industries such as spray painting, printing, electronics, pharmaceuticals, plastics, furniture, and chemicals.

▶ Product Structure

Catalytic combustion equipment utilizes a modular design to ensure efficient purification and easy maintenance. Its main components are as follows:
1. Pretreatment System
Before entering the main reaction zone, the exhaust gas passes through a dry filter or spray tower to remove impurities such as particulate matter and oil mist, protecting the catalyst from contamination.
2. Heat Exchanger (Heat Recovery System)
The heat exchanger transfers heat from the high-temperature exhaust gas to the incoming exhaust gas, raising the intake air temperature, reducing heating energy consumption, and improving overall thermal efficiency.
3. Heating System
Typically equipped with an electric or gas heater, it heats the exhaust gas to the catalytic reaction temperature (approximately 200-350°C) to provide the starting energy for the catalytic reaction.
4. Catalytic Reaction Chamber
This core component is filled with honeycomb or spherical catalysts. The catalyst surface promotes flameless combustion of the exhaust gas at a relatively low temperature, achieving deep purification.
5. Fan and Duct System
A high-efficiency, high-temperature-resistant fan ensures uniform exhaust gas circulation. The duct system is constructed of corrosion-resistant materials and features excellent sealing to prevent leakage.

6. Control System
The PLC automatic control system implements temperature control, automatic start and stop, abnormality alarms, and remote monitoring, enhancing operational intelligence and safety.

▶ Main Types

Fixed-Bed Catalytic Combustion Equipment
Suitable for continuous exhaust gas treatment with small to medium air volumes. Featuring a compact structure and high reaction efficiency, it is commonly used in industries such as spray painting, electronics, and printing.
Activated Carbon + Catalytic Combustion Combination Equipment
Activated carbon is first used to adsorb and store low-concentration exhaust gases. Once saturated, it switches to catalytic combustion for desorption and purification. This equipment is suitable for intermittent emissions or fluctuating exhaust gas concentrations.
Regenerative Catalytic Combustion Equipment (RCO)
Combining a catalytic reaction with a heat recovery system, it offers higher thermal efficiency and is suitable for high-volume, medium-concentration applications, offering significant energy savings.
Mobile Catalytic Combustion Equipment
Suitable for emergency response, within workshops, or at on-site work sites, it features a compact size, easy mobility, and ready-to-use functionality.

▶ Advantages

High Purification Efficiency
Catalytic combustion achieves a treatment efficiency of over 95% for most VOCs. The treated exhaust gas is virtually odorless and pollutant-free, meeting stringent environmental emission standards.
Low-Temperature Operation, Energy Saving and Environmental Protection
The catalytic reaction temperature is generally between 200°C and 350°C, far lower than the high temperatures required for direct combustion (above 700°C), saving significant energy. The absence of open flames also enhances safety.
Automatic Control, Convenient Operation
Equipped with an intelligent control system, it enables one-touch start and stop, temperature adjustment, and real-time monitoring of operating status, reducing manual operation complexity and management costs.
Long Life, Low Maintenance
The catalyst has a lifespan of over 2-3 years. The stable equipment structure offers long maintenance cycles and low costs, making it suitable for long-term, continuous operation.
No Secondary Pollution, Environmentally Friendly
The catalytic combustion process is smokeless, flameless, and explosion-proof. The reaction products are CO₂ and H₂O, generating no new pollution and achieving truly clean treatment.

▶ Application Industry

▶ FAQ

What types of exhaust gases are suitable for catalytic combustion equipment?
Catalytic combustion equipment is suitable for treating medium- to high-concentration organic waste gases, such as benzene, ketones, alcohols, esters, and ethers. It is widely used in industries such as spraying, printing, chemicals, and plastics. For low-concentration exhaust gases, it can be used in conjunction with an adsorption concentration system to improve overall treatment efficiency.

  
How often does the catalyst need to be replaced? Is it prone to failure?
The typical catalyst lifespan is 2-3 years, but the actual replacement interval depends on the exhaust gas composition and pretreatment effectiveness. If the exhaust gas contains high concentrations of particulates, oil mist, or heavy metals, it may poison or deactivate the catalyst. Therefore, it is recommended to strengthen pretreatment and regularly check catalytic activity.  

  
Are there any safety hazards associated with the operation of catalytic combustion equipment?
Catalytic combustion occurs at low temperatures, without open flames, and is less likely to explode, making it a relatively safe treatment method. The equipment is equipped with multiple protection devices, such as over-temperature alarms, power-off protection, and automatic shutdown, to ensure prompt response to abnormal conditions and safe operation.

Jiangsu Jiheng Technology Co., Ltd. is located in Yancheng City, Jiangsu Province, a pearl on the Yellow Sea coast and home to the world's rare elk and red-crowned crane. Yancheng is crisscrossed by the Coastal Expressway, the Ningjingyan Expressway, the Xuhuaiyan Expressway, and the Xinchang Railway, which runs north and south. The city also boasts an international airport with over ten direct flights to South Korea, Thailand, Taiwan, and other countries, offering convenient transportation and advanced communications.

The company specializes in the research, development, manufacturing, and installation of coating and environmental protection equipment.

We provide one-stop services from concept development, design, manufacturing, installation, and commissioning to ensure product quality. We also have an experienced product design team to ensure the technological sophistication of our entire product design. We have already delivered high-quality projects for multiple manufacturers.

Adhering to the business philosophy of prioritizing technology, optimizing management, and keeping pace with the times, we are dedicated to providing customers with coating equipment, mobile spray painting, drying equipment, dust removal equipment, ventilation equipment, and complete coating production lines. Customer requirements are our driving force for continuous improvement. We will continue to strive for technological leadership, superior quality, and integrity, striving to provide our customers with high-quality, environmentally friendly products.
Jiangsu Jiheng Technology Co., Ltd. sincerely hopes to cooperate with friends from all walks of life, work hand in hand, and create a brilliant future together.