What Is a Catalytic Oxidizer?
A Catalytic Oxidizer (CO) is an advanced air pollution control equipment designed to remove volatile organic compounds (VOCs) and hazardous air pollutants through catalytic oxidation. Unlike thermal oxidation, which requires temperatures above 800 °C, the catalytic process operates at 250–400 °C, significantly reducing energy consumption while maintaining high destruction efficiency.
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How a Catalytic Oxidizer Works
- Preheating and Gas Flow – VOC-laden air is preheated before entering the catalytic reaction chamber.
- Catalytic Oxidation – In the catalyst bed, VOCs react with oxygen to form CO₂ and H₂O at lower temperatures.
- Heat Recovery – Optional heat exchangers recover thermal energy from the clean exhaust, improving efficiency.
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Advantages of Catalytic Oxidizers
- Low Operating Temperature (250–400 °C) reduces fuel use and cost.
- High VOC Destruction Efficiency (≥ 98%) with minimal NOx generation.
- Compact Design, ideal for limited spaces or low-flow applications.
- Long Catalyst Life with stable performance.
- Integration Ready with pretreatment systems like scrubbers or filters.
Integration with Other Systems
CADAIR’s CO systems are commonly combined with:
- Zeolite Rotor VOC Concentrators – Concentrate low-VOC streams to increase oxidation efficiency.
- RTO (Regenerative Thermal Oxidizer) – For high-volume, high-temperature oxidation.
- RCO (Regenerative Catalytic Oxidizer) – For hybrid systems offering both regenerative heat recovery and catalytic oxidation.
- Scrubber (Water-Washing Tower) – For cooling and acid gas removal before oxidation.
👉 Discover industrial Solutions that combine CO systems with RTO, RCO, and Zeolite Rotor technologies.
Applications
- Printing and Coating lines (solvent-based emissions)
- Chemical and Pharmaceutical production
- Electronics and Semiconductor manufacturing
- Food Processing with flavor or alcohol vapors
- Paint and Resin plants
These industries benefit from Catalytic Oxidizers for reliable VOC abatement with low energy demand.
Why Choose CADAIR CO Systems?
CADAIR’s Catalytic Oxidizers feature high-efficiency catalyst modules, intelligent temperature control, and optional heat recovery systems.
We provide customized solutions to meet diverse industrial needs, achieving VOC treatment, energy savings, and full compliance with international emission standards.
👉 View real-world Case Studies to see how CADAIR helps global clients achieve sustainable air quality goals.
Internal Links
- Homepage
- Products – RTO, RCO, CO, Zeolite Rotor, Scrubber
- Solutions – VOC Treatment & Control of Gaseous Emissions
- Case Studies

