How to Choose the Material of a Pyrolysis Vessel?

Selecting the appropriate material for a pyrolysis vessel(also called pyrolysis reactor pr pyrolysis chamber) is critical to ensuring the efficiency, safety, and longevity of your pyrolysis system. The material choice directly impacts the vessel's ability to withstand extreme temperatures, resist corrosion, and maintain structural integrity during the pyrolysis process. Making the wrong material selection can lead to frequent equipment failures, increased maintenance costs, and potential safety hazards.

DOING pyrolysis vessel

The material selection for a pyrolysis vessel must be based on a comprehensive evaluation of several key factors:

Feedstock Type and Characteristics

Different feedstocks have varying chemical compositions and thermal properties that significantly influence material of a pyrolysis vessel selection:

Conventional Feedstocks (Tires, Rubber, and Plastics):

Temperature Requirements: Pyrolysis of rubber and plastics typically occurs between 300°C to 450°C.

Corrosiveness: These feedstocks generally produce low corrosiveness during pyrolysis.

Material Recommendation: Q245R or Q345R boiler plates are excellent cost-effective options. These carbon steels offer sufficient strength and moderate temperature resistance for these applications.

Semi-Fluid Feedstocks (Oil Sludge, Coal Tar):

Temperature Requirements: Pyrolysis temperatures for these materials often between 300°C-500°C.

Corrosiveness: Moderate to high corrosiveness due to complex hydrocarbon compositions.

Material Recommendation: Stainless steel grades such as 304, 316 or 309S are required.

DOING pyrolysis plant vessel design details

Operational Conditions

Beyond feedstock properties, several operational factors influence material of a pyrolysis vessel selection:

Temperature Cycles: Materials that experience frequent heating and cooling require better thermal shock resistance.

Pressure Requirements: High-pressure pyrolysis systems need materials with higher tensile strength.

Residence Time: Longer material exposure to corrosive environments necessitates more durable materials.

DOING pyrolysis vessel manufacturing process

Cost and Longevity Considerations

Initial Investment: Carbon steels offer the lowest initial cost, followed by stainless steels, with representing the highest initial investment.

Maintenance Costs: Stainless steels generally require less frequent maintenance than carbon steels in corrosive applications.

Service Life: While carbon steel offers the lowest initial investment, the DOING Company's composite structure pyrolysis vessels strike a balance between cost and performance. The stainless steel inner liner enhances corrosion resistance and extends the pyrolysis vessel's lifespan. Compared to basic carbon steel vessels that may only last 1-3 years in harsh conditions, our vessels can operate efficiently for more than 3-6 years, offering better long-term economic value.

DOING pyrolysis vessel details

The material selection for a pyrolysis vessel is a critical decision that requires balancing feedstock properties, operational conditions, and economic factors. DOING Company specializes in designing and manufacturing pyrolysis vessels tailored to specific application requirements. Our technical team can help you evaluate:

The DOING Company's pyrolysis vessels adopt a Q245/345R boiler steel plate + stainless steel composite structure, with a thickness ranging from 14-18 millimeters. The vessel body is made of Q245/345R boiler steel plates, which offer excellent strength and stability, capable of withstanding high-temperature and high-pressure pyrolysis processes. The inner liner is crafted from stainless steel materials such as 304/309S, which provide strong corrosion resistance and oxidation resistance, effectively preventing coking and corrosion caused by feedstocks like sludge and rubber. This composite structure not only ensures the vessel's durability but also reduces the risk of equipment failures and maintenance costs.

DOING pyrolysis vessel manufacturer

If you are looking for a high-quality pyrolysis vessel manufacturer, the DOING Company is your trusted partner. Contact us today to learn more about our pyrolysis vessel materials and customize a solution that meets your unique pyrolysis application requirements. Choose the DOING Company, and choose quality and reliability!