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A VOC purifier is a specialized type of air purification system designed specifically to remove Volatile Organic Compounds (VOCs) from indoor air. These are gaseous chemicals that evaporate at room temperature from sources like paints, cleaning products, adhesives, furniture, and building materials.
Unlike standard air purifiers that mainly target particles, VOC purifiers use advanced technologies like activated carbon filters, photocatalytic oxidation, or other specialized media to adsorb or break down these harmful gases at a molecular level.
A Regenerative Catalytic Oxidizer (RCO) is an advanced air pollution control system engineered to remove volatile organic compounds (VOCs) from odorous gases, and hazardous air pollutants (HAPs) from industrial exhaust. Unlike conventional oxidizers, the RCO integrates catalytic oxidation with regenerative heat recovery which is enabling VOC destruction at significantly lower temperatures.
As a trusted RCO manufacturer and RCO system supplier in China, Senotay delivers high-efficiency, energy-saving catalytic oxidizers widely used across coating, chemical, printing, electronics, and other VOC-intensive industries.
Below is a unique comparative table (10 rows × 7 columns) analyzing RCO types:
Type No. | Airflow Capacity (m³/h) | Operating Temp (°C) | Heat Recovery Efficiency | Catalyst Type | Fuel Type | Typical Application |
RCO-100 | 5,000 | 300 | ≥90% | Noble Metal | NG/LPG | Printing Lines |
RCO-200 | 10,000 | 280 | ≥92% | Noble Metal | NG | Electronics |
RCO-300 | 15,000 | 320 | ≥90% | Metal Oxide | NG/LPG | Packaging |
RCO-400 | 20,000 | 300 | ≥93% | Noble Metal | NG | Coating Booths |
RCO-500 | 25,000 | 270 | ≥90% | Metal Oxide | LPG | Wood Finishing |
RCO-600 | 30,000 | 320 | ≥94% | Noble Metal | NG | Automotive Plants |
RCO-700 | 40,000 | 300 | ≥92% | Noble Metal | NG | Petrochemical |
RCO-800 | 50,000 | 310 | ≥93% | Metal Oxide | NG/LPG | Adhesives |
RCO-900 | 60,000 | 330 | ≥95% | Noble Metal | NG | Chemical Industry |
RCO-1000 | 80,000+ | 300–350 | ≥95% | Mixed Catalyst | NG | Large-Scale VOC Treatment |
· Industries choose Regenerative Catalytic Oxidizers because they offer:
· Lower Operating Temperature
· VOC oxidation occurs at 250–350°C, nearly half the temperature of traditional RTO systems.
· Ultra-High VOC Destruction Efficiency
· Up to 99% VOC removal, meeting global emission standards.
· Energy-Saving Operation
· The regenerative ceramic beds capture and reuse heat, drastically reducing gas consumption.
· Long-Term Reliability
· Fewer thermal stresses and lower burnout risks extend equipment lifespan.
· Compliance With Environmental Regulations
· Ideal for facilities needing continuous clean air solutions, carbon reduction, and regulatory compliance
Physical Dimensions | Performance Ratings | Material & Construction | Operational Data | Certifications & Lifecycle |
Model Range: 5,000–120,000 m³/h | 95–99% | Q235 / SS304 / SS316L | −2,000 to +2,000 Pa | 8–15 years |
Length: 3,800–16,500 mm | 85–97% | Pt/Pd noble metal honeycomb | 40–450 kW | 12–24 months |
Width: 2,400–9,200 mm | 260–380 °C | Cordierite / Ceramic | 850–1,900 Pa | ISO 9001 / CE / EN 376 |
Height: 3,900–12,000 mm | 450 °C | Ceramic Saddles / Honeycomb | 7.5–200 kW | GB 31572 / EN 14181 |
Inlet Flange Size: DN300–DN1800 | ≤ 0.2% | 100–200 mm | 8–36 holes (Ø18–Ø28 mm) | 18,000–28,000 h |
Outlet Flange Size: DN350–DN1800 | ≤ 75 dB(A) | Epoxy 120 μm + PU 150 μm | NG / LPG / Diesel | ≥ 500,000 cycles |
Door Panel Thickness: 6–12 mm | 25–45 min | Fiberglass, Graphite, PTFE | 4–12 points | IP55 / IP65 |
Weight: 5,200–42,000 kg | < 20 mg/m³ | High-temp Ceramic Fiber | PLC + HMI | C3–C5 |
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Senotay’s Regenerative Catalytic Oxidizer system is designed for stable performance, economic energy usage, and high VOC elimination.
Key features include:
Modular design and simple installation.
Low NOx formation.
Intelligent PLC automatic control.
Low maintenance ceramic beds.
Durable catalyst with long service life.
Safety interlocks and emergency bypass system.
This RCO system efficiently processes medium-to-high-concentration VOC emissions with consistent long-term performance.
A complete RCO system from Senotay includes:
Primary Heat Exchanger / Ceramic Heat Storage Beds.
Catalyst Reaction Chamber.
VOC Exhaust Fan & Piping System.
Burner and Temperature Control System.
Automated Switching Valves.
PLC Control Panel & Safety Interlocks.
Insulation Layer & Structural Housing.
Pre-filters / Dust Removal Units (optional).
Installation follows international engineering practices:
Site Preparation – Analyze airflow, emission volume, and environmental requirements.
Foundation Construction – Reinforced concrete base to support system weight.
Module Assembly – Install ceramic beds, reaction chamber, piping, and supports.
Electrical & Control Wiring – Connect PLC, sensors, motors, and safety circuits.
Gas Line Installation – Configure burners and fuel control systems.
Commissioning & Testing – Temperature calibration, airflow testing, and catalyst activation.
Senotay provides full installation support, including on-site guidance and technical training.
VOC-laden air enters the ceramic heat storage chamber, absorbing heat from previously purified air.
The preheated air passes into the catalytic reaction chamber, where catalysts accelerate VOC oxidation at low temperatures.
VOCs convert into harmless CO₂ and H₂O.
Purified air releases heat into the ceramic bed, significantly reducing fuel usage.
Switching valves alternate airflow direction for continuous regenerative heating.
This cycle dramatically minimizes energy consumption and ensures high VOC destruction efficiency.
Feature | RTO | RCO |
Operating Temperature | 750–850°C | 250–350°C |
Catalyst Requirement | Not required | Required |
Fuel Consumption | High | Low |
VOC Concentration Range | Wide | Medium / Stable |
Maintenance | Low | Moderate (catalyst maintenance) |
Startup Time | Longer | Faster |
Energy Efficiency | High | Very High |
Conclusion:
If the VOC concentration is stable and energy efficiency is critical, RCO is the superior choice.
Over 15 years of experience in VOC purification systems.
Certified quality management and strict production standards.
Independent R&D and patented valve switching technology..
International-grade catalysts with long service life.
Energy-saving design achieving ultra-low operational cost.
Customization for complex emission conditions.
24/7 technical support and on-site service.
Senotay is recognized as a leading RCO system supplier in China, trusted by top-tier industrial brands.
Senotay RCO systems serve industries such as:
Automotive.
Coating & painting.
Petrochemical.
Electronics.
Packaging.
Printing.
Plastics & rubber..
Textile & leather.
Pharmaceutical.
Adhesives & resins.
1. What is the typical lifespan of an RCO system?
Answer:10–15 years with proper maintenance.
2. How often should the catalyst be replaced?
Answer:Typically every 3–5 years depending on VOC type.
3. Is an RCO suitable for high-concentration VOC emissions?
Answer:Yes, but it performs best with stable, medium-concentration VOC streams.
4. What fuels can an RCO operate on?
Answer:Natural gas, LPG, diesel, or electric heating.
5. Does Senotay provide installation and after-sales service?
Answer:Yes, full technical support, installation guidance, and maintenance service.
6. Can the RCO system be customized?
Answer:Absolutely yes Senotay specializes in designing custom VOC oxidation systems for unique industrial needs.
