What are the best materials for RTO gas treatment systems?

What are the best materials for RTO gas treatment systems?

Regenerative Thermal Oxidizers (RTO) are widely used to treat industrial waste gas emissions. They are designed to destroy harmful pollutants through high-temperature oxidation. The use of RTO gas treatment systems helps industries to comply with strict environmental regulations related to air pollution. The effectiveness of RTO gas treatment systems depends on various factors, including the materials used in their construction. In this article, we will discuss the best materials for RTO gas treatment systems.

Flameless Regenerative Thermal Oxidizer

1. Ceramic Materials

  • Ceramic materials are the most commonly used materials in RTO gas treatment systems due to their excellent thermal stability and durability.
  • They can withstand high temperatures (up to 1600¡ãC) and are highly resistant to chemical corrosion.
  • They are also good insulators, which helps to minimize heat loss and improve energy efficiency.
  • Some of the common ceramic materials used in RTO gas treatment systems include alumina, silicon carbide, and zirconia.

2. Refractory Metals

  • Refractory metals, such as tungsten, molybdenum, and niobium, are also commonly used in RTO gas treatment systems due to their high melting points and excellent resistance to corrosion.
  • They are suitable for use in high-temperature applications, such as RTO systems, where temperatures can reach up to 1500¡ãC.
  • They are also highly durable and can withstand harsh operating conditions.

3. Stainless Steel

  • Stainless steel is a popular material choice for RTO gas treatment systems due to its high strength, corrosion resistance, and ease of fabrication.
  • It is suitable for use in applications where high temperatures are not required, such as in low-temperature RTO systems.
  • However, it is not recommended for use in high-temperature applications as it may deform or lose its strength at high temperatures.

4. Fibrous Materials

  • Fibrous materials, such as ceramic fiber and mineral wool, are commonly used as insulation materials in RTO gas treatment systems.
  • They help to minimize heat loss and improve energy efficiency by reducing the amount of heat that escapes from the system.
  • They are also lightweight and easy to install, making them a cost-effective option for RTO systems.
  • However, they may release fibers into the air if they are not properly installed and maintained, which can pose a health hazard to workers.

5. Coatings

  • Coatings are often applied to the interior of RTO gas treatment systems to protect the materials from corrosion and erosion.
  • Common coating materials include ceramics, metals, and polymers.
  • The choice of coating material depends on the specific application and the type of pollutants that are being treated.
  • Coatings can also improve the overall efficiency of RTO systems by reducing the build-up of pollutants on the surfaces of the system.

6. Heat Exchanger Materials

  • Heat exchangers are an important component of RTO gas treatment systems as they help to recover heat from the exhaust gas stream.
  • The most commonly used materials for heat exchangers include stainless steel, ceramic, and glass.
  • They are designed to withstand high temperatures and corrosive gases, which can cause damage to the system over time.

7. Catalyst Materials

  • Catalysts are used in RTO gas treatment systems to promote the oxidation of pollutants at lower temperatures and improve the efficiency of the system.
  • The most commonly used catalyst materials include precious metals, such as platinum and palladium, and base metals, such as nickel and copper.
  • The choice of catalyst material depends on the specific application and the type of pollutants that are being treated.

8. Electrical Components

  • Electrical components, such as heating elements and control systems, are an essential part of RTO gas treatment systems.
  • The materials used in these components must be able to withstand high temperatures and corrosive gases.
  • Common materials used in electrical components include ceramics, metals, and polymers.
  • They are designed to provide reliable and efficient operation of RTO systems.


We specialize in comprehensive treatment of volatile organic compounds (VOCs) waste gas and carbon reduction and energy-saving technology for high-end equipment manufacturing. Our core technical team comprises of more than 60 R&D technicians, including 3 senior engineers at the researcher level and 16 senior engineers. We have four core technologies: thermal energy, combustion, sealing, and automatic control. Moreover, we have the ability to simulate temperature fields and air flow field simulation modeling and calculation, test the performance of ceramic thermal storage materials, and experimentally test the high-temperature incineration and oxidation characteristics of VOCs organic matter. We have built an RTO technology research and development center and an exhaust gas carbon reduction engineering technology center in the ancient city of Xi’an, with a 30,000m122 production base in Yangling. Our RTO equipment production and sales volume is far ahead in the world.

Our R&D platform includes the following:

– High-efficiency combustion control technology test bench
– Molecular sieve adsorption efficiency test bench
– High-efficiency ceramic thermal storage technology test bench
– Ultra-high temperature waste heat recovery test bench
– Gas fluid sealing technology test bench

The High-efficiency combustion control technology test bench is designed to measure the combustion efficiency of a wide range of fuels. The Molecular sieve adsorption efficiency test bench can test the adsorption efficiency of different types of VOCs. The High-efficiency ceramic thermal storage technology test bench is used to evaluate various thermal storage materials. The Ultra-high temperature waste heat recovery test bench can recover waste heat at temperatures higher than 800¡ãC. The Gas fluid sealing technology test bench is capable of testing gas-tight sealing under different pressure conditions.

In terms of patents and honors, we have declared 68 patents, including 21 invention patents, and our patented technologies have covered key components. So far, we have been authorized for 4 invention patents, 41 utility model patents, 6 design patents, and 7 software copyrights.

Our production capacity includes the following:

– Steel plate and profile automatic shot blasting and painting production line
– Manual shot blasting production line
– Dust removal and environmental protection equipment
– Automatic painting booth
– Drying room

The steel plate and profile automatic shot blasting and painting production line can automatically blast and paint various steel plates and profiles. The manual shot blasting production line can clean various metal surfaces manually. The dust removal and environmental protection equipment can effectively remove dust and other harmful pollutants. The automatic painting booth can automatically paint various products. The drying room provides a suitable temperature and humidity environment for the product drying process.

We invite you to partner with us and enjoy the following benefits:

– Highly efficient and cost-effective treatment of VOCs waste gas
– Top-quality and reliable products
– Experienced technical support and after-sales service
– Large-scale production capacity and timely delivery
– Comprehensive environmental protection solutions
– Competitive pricing

Author: Miya.

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