HEBEIOUTAI ENVIRONMENTAL PROTECTION EQUIPMENT CO., LTD.
Regenerative Catalytic Oxidizer

Regenerative Catalytic Oxidizer

What Is a Regenerative Catalytic Oxidizer?

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.

 


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Energy-Saving VOC & HAP Destruction System

The Regenerative Catalytic Oxidizer (RCO) is an advanced air pollution control system engineered to remove volatile organic compounds (VOCs) and hazardous air pollutants (HAPs) from industrial exhaust streams. By integrating regenerative ceramic heat recovery with a precious metal or metal oxide catalyst bed, the RCO achieves up to 99% VOC destruction efficiency at significantly lower temperatures (250–350°C) than a traditional Regenerative Thermal Oxidizer (RTO). This makes it a highly economical and energy-efficient solution for industries with continuous, stable VOC loads.


Core System Advantages

  • Low-Temperature Oxidation: Utilizes specialized catalysts to break down VOCs at just 250–350°C—nearly half the temperature required by traditional thermal oxidizers (750–850°C). This dramatically reduces fuel consumption.

  • Regenerative Heat Reuse: Ceramic heat storage beds capture and reuse thermal energy from purified exhaust air to pre-heat incoming polluted air, ensuring ultra-low ongoing operational costs.

  • Fast Startup & Reliability: The lower operating temperature limits thermal stress on internal components, preventing burner burnout and extending the equipment's overall lifespan while enabling faster startup times.

Featured Model Configurations

  • RCO-800 | Chemical & Adhesives Production

    Airflow: 50,000 m³/h | Catalyst: Metal Oxide | Heat Recovery: ≥ 93%

    Engineered to handle heavy, continuous VOC off-gassing from adhesives, resins, and rubber manufacturing.

  • RCO-1000 | Mega-Flow Central VOC Treatment

    Airflow: 80,000+ m³/h | Catalyst: Mixed Catalyst | Heat Recovery: ≥ 95%

    High-capacity system built for centralized facility exhaust, large-scale petrochemical processing, and major printing operations.



Why Choose the SENOTAY Regenerative Catalytic Oxidizer

  • Ultra-Low Operating Temperature: Oxidizes VOCs at just 250–350°C (nearly half the temperature of traditional RTO systems), which drastically cuts fuel consumption while maintaining up to 99% destruction efficiency.

  • Maximum Energy Recovery: Features regenerative ceramic beds that capture and reuse heat between cycles, making it a highly economical and energy-saving solution for stable, continuous VOC streams.

  • Fast Startup & Longer Lifespan: The lower operating temperatures reduce thermal stress and burnout risks, extending the equipment's lifespan and allowing for much faster startup times compared to thermal-only oxidizers.

  • Tailored Catalyst Technology: Utilizes high-quality noble metal or metal oxide catalyst beds specifically matched to your facility's VOC concentration and required destruction efficiency.

  • Massive Scalability: Available in ten distinct models capable of handling airflow capacities from 5,000 to over 80,000 cubic meters per hour, ideal for coating booths, electronics manufacturing, printing, and automotive plants.


Why Leading Plants Choose SENOTAY RCO

Factory-Direct Pricing. Certified Quality. Dedicated Support.

  • Best Price Guarantee

  • Certified & Compliant

    • ISO 9001 and CE certified.

  • Fast, Reliable Delivery


 

Types of Regenerative Catalytic Oxidizer – Specification Analysis

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


Why Regenerative Catalytic Oxidizer?

·        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


Regenerative Catalytic Oxidizer (RCO) — Technical Specification Table

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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Product Description

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.

 

Core Components

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).

 

Regenerative Catalytic Oxidizer Installation Method

Installation follows international engineering practices:

  1. Site      Preparation – Analyze airflow, emission volume, and environmental requirements.

  2. Foundation      Construction – Reinforced concrete base to support system weight.

  3. Module Assembly – Install      ceramic beds, reaction chamber, piping, and supports.

  4. Electrical      & Control Wiring – Connect PLC, sensors, motors,      and safety circuits.

  5. Gas Line      Installation – Configure burners and fuel control systems.

  6. Commissioning      & Testing – Temperature calibration, airflow testing, and catalyst activation.

Senotay provides full installation support, including on-site guidance and technical training.

 

 

How It Works – RCO Working Mechanism

  1. VOC-laden air      enters the ceramic heat storage chamber, absorbing heat from previously      purified air.

  2. The preheated      air passes into the catalytic reaction chamber, where catalysts      accelerate VOC oxidation at low temperatures.

  3. VOCs convert      into harmless CO₂ and H₂O.

  4. Purified air      releases heat into the ceramic bed, significantly reducing fuel usage.

  5. Switching      valves alternate airflow direction for continuous regenerative heating.

This cycle dramatically minimizes energy consumption and ensures high VOC destruction efficiency.

 

Difference Between RTO and RCO

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.

 

Technical Advantages of Senotay (Hebei OuTai Environmental Protection Equipment Co., Ltd.) 

  • 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.

 

Applications

Senotay RCO systems serve industries such as:

  • Automotive.

  • Coating &      painting.

  • Petrochemical.

  • Electronics.

  • Packaging.

  • Printing.

  • Plastics &      rubber..

  • Textile &      leather.

  • Pharmaceutical.

  • Adhesives &      resins.

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Frequently Asked Questions (FAQs)

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.