An industrial exhaust gas purification technology that efficiently treats volatile organic compounds (VOCs). Its core principle involves using a catalyst to lower the temperature required for the oxidation of organic compounds, combined with heat-storage ceramics to enable thermal energy recycling.

This technology achieves exhaust gas purification through four key steps: 1. **Preheating and Heat Storage Stage**: Exhaust gases are preheated to 250–400°C as they pass through the heat-storage ceramic layer—significantly lower than the 800°C required in conventional combustion processes. 2. **Catalytic Oxidation Stage**: Under the action of precious metal catalysts (such as platinum or palladium) or transition metal oxide catalysts, VOCs react with oxygen to produce carbon dioxide and water, achieving a purification efficiency of 95%–99%. 3. **Heat Recovery Stage**: High-temperature gases release their thermal energy back into the system via the heat-storage ceramic, resulting in a heat recovery efficiency exceeding 95%. 4. **Intelligent Airflow Switching via Rotating Valves**: The system seamlessly alternates between two air pathways using smart rotating valves, dramatically reducing energy consumption.

In terms of efficient purification, it can effectively handle complex VOCs such as benzene, ketones, and aldehydes, with a stable purification rate consistently exceeding 95%. Regarding energy conservation and cost reduction, this technology reduces energy consumption by 40% to 70% compared to conventional combustion methods, while achieving a heat recovery efficiency of over 95%. In terms of safety and reliability, the system is equipped with fireproof, explosion-proof, and over-temperature alarm mechanisms, coupled with an advanced automatic control system, ensuring stable operation even in highly hazardous environments. Additionally, the residual heat generated during the reaction can be utilized in downstream processes like drying and heating, enabling cascaded energy utilization.

This technology is widely applied in fields such as petrochemicals (for treating VOCs like alkanes, alkenes, and aromatics), the pharmaceutical industry (for purifying highly toxic and odorous organic compounds), rubber and latex products (for controlling sulfur- and hydrocarbon-containing exhaust gases), and coating & printing industries (for handling volatile solvents from paint spraying and ink applications). It is also suitable for industries such as furniture manufacturing, textile dyeing and printing, semiconductors, and synthetic materials.

Regarding the composition and concentration of exhaust gases, a detailed analysis is required to identify the specific components, ensuring that substances like sulfur and halogens—known to easily poison catalysts—are avoided. Additionally, high-concentration exhaust gases should be carefully considered for dilution treatment.

Handling objects: Odorous exhaust gases, organic exhaust gases (e.g., exhaust from coating and painting processes, coating-related emissions, etc.).

Processing range: 5,000–50,000 Nm²/h

Processing efficiency: Can reach over 98%

Applicable industries: Fine chemicals, batch coating production lines, the printing industry, light manufacturing, plastics, and other sectors that generate organic exhaust gases.

This device leverages the excellent heat-storage and thermal-conductivity properties of the ceramic body, enabling direct preheating of exhaust gases within the ceramic structure. Combined with a catalyst, it facilitates the complete decomposition and oxidation of organic exhaust gases at relatively low temperatures, significantly reducing the combustion temperature inside the system. As a result, the system becomes more energy-efficient and safer.

Key features: The combustion chamber maintains a temperature between 300–450°C, effectively oxidizing and cracking organic exhaust gases. The temperature difference between the inlet and outlet of the exhaust gas is less than 30°C, allowing for direct emission.

The concentration range for treating exhaust gases: 50 mg/m² to 3,000 mg/m².