Processing of chemicals exposes process equipment to highly corrosive fluids. Careful analysis of fluids, pressures, processes and manufacturing temperatures have shown a Duplex Stainless Steel Reactor to be highly corrosion-resistant in extremely harsh environments.
It is critical that proper consideration be given to the effects of the chemistry on the material of construction during the manufacturing process; otherwise, the condition can rapidly decline, leading to equipment corrosion and ultimately endangering the process line.
Specification of Duplex Stainless Steel as the material of construction for Reactors offers a long-term, cost-effective method to prevent damaging corrosion.
Life Cycle Benefits of Duplex Stainless Steel Reactors
Duplex Stainless Steel Reactors are highly cost-effective over the entire life cycle of the equipment. Properly maintained, TITAN’s Duplex Stainless Steel Reactors can operate for decades, making them a very economical material selection over other available metals.
Duplex Stainless Steel Reactors can:
- Deliver many years of economical service life
- Eliminate expensive downtime due to equipment failure
- Provide outstanding corrosion resistance
- Accommodate high steam pressure
- Provide high resistance to uniform attack
- Provide outstanding localized corrosion resistance
- Prevent stress cracking
- Minimize possibilities of process fluid leaks
These qualities have led to acceptance and growth of the use of Duplex Stainless in Reactors, Pressure Vessels, Columns, Storage Tanks as well as Heat Exchangers, Pipe and Piping Systems in sulfuric acid processing, production of urea and other fertilizers.
Duplex Stainless Steel the Metal
Duplex Stainless Steel offers excellent resistant to corrosion along with very high mechanical strength and provides more uptime than Carbon Steel or conventional Stainless Steel. The mechanical strength of Duplex Stainless Steel allows for lighter fabrication and greater design flexibility.
Duplex Stainless Steel’s beneficial performance is attributable to a combination of austenitic and ferrite alloys in its microstructure, achieving both strength and high corrosion resistance.
With its myriad applications, industry is constantly in pursuit of highly reliable materials. Duplex Stainless Steel Reactors are widely endorsed by plant operations management and maintenance specialists who appreciate their toughness and ability to withstand the very aggressive fluids inherent in the process.
Compared with some other materials, Duplex Stainless Steel is a reliable and in the long-term, a less costly material of construction offering high strength even in highly demanding applications.
It should be noted that due to the proportions of austenitic and ferrite alloys, Duplex Stainless Steel require considerably more care in welding preparation and fabrication procedures. Inexperience or less than vigilant attention to the specific welding process can render the resulting fabrication compromised in strength and corrosion-resistance.
Duplex Stainless Steel Reactor Designs
TITAN designs and custom fabricates many different styles of Duplex Stainless Steel Reactors in accordance with all major international design standards and pressure vessel codes.
Thermal designs use HTRI and AspenTech.
Manufacturing capacities include widths up to 120″ diameter, 300’ in length and weights up to 200 tons.
Designs and Accessories to Duplex Stainless Steel Reactors include:
- Solid wall
- Explosive clad
- Standard jacket
- Half pipe jacket
- Outlet valves
- Dip tubes
Duplex Stainless Steel Corrosion Resistance
Duplex Stainless Steel reactors are suitable for applications in the chemical processing, pharmaceutical, agricultural, fertilizer, petrochemical, and power industries which commonly use salts, acids and other chemicals which can be damaging to lesser materials.
To view a list of process materials where Duplex Stainless Steel is commonly used, please visit Applications of Duplex Stainless Steel.
For a general guide on corrosion resistance, temperatures and concentrations please see TITAN’s publication, “Corrosion Resistance of Metals in Various Chemical Media” for additional information.*
*Note: Final selection of material must be based on actual evaluation of the metal in the corrosive medium.
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