Common Types of Pressure Vessels Used in Chemical Processing

In the chemical processing industry, pressure vessels play a critical role in ensuring safe, efficient, and reliable operations. These specialized containers are designed to hold gases or liquids at pressures significantly different from ambient levels, making them essential for a variety of applications—from storage and mixing to reaction processes.

At Boardman Inc., a trusted heavy metal fabrication company, we understand the complexities and strict requirements involved in fabricating pressure vessels for chemical processing plants. In this article, we explore the common types of pressure vessels used in this industry and how quality fabrication impacts safety and performance.

What Are Pressure Vessels in Chemical Processing?

Pressure vessels are engineered containers designed to operate under high pressure, often containing hazardous or reactive chemicals. Their design must comply with rigorous industry standards such as ASME Boiler and Pressure Vessel Code (BPVC), ensuring they can safely withstand internal and external pressures during chemical processes.

Common Types of Pressure Vessels

1.     Storage Vessels

Storage pressure vessels are used to safely store gases or liquids under pressure before or after processing. These vessels are typically cylindrical with rounded ends to distribute stress evenly and reduce the risk of failure. They are designed to handle a range of chemicals, including corrosive substances, requiring specialized materials and coatings.

2.     Reactor Vessels

Chemical reactors are pressure vessels designed to facilitate chemical reactions. These vessels often feature agitation mechanisms, heating or cooling jackets, and complex internal components to control reaction conditions such as temperature, pressure, and mixing. Fabrication of reactor vessels demands precision engineering and expertise to accommodate these features.

3.     Separator Vessels

Separator vessels are used to separate mixtures into individual components, often under pressure. For example, gas-liquid separators remove entrained liquids from gas streams. These vessels require a robust design to handle varying pressure loads and sometimes extreme temperature fluctuations.

4.     Heat Exchangers

While technically not always classified solely as pressure vessels, many heat exchangers operate under pressure and are fabricated similarly. They transfer heat between fluids in chemical processing, often featuring tubes and shells engineered to withstand pressure and corrosive environments.

5.     Distillation Columns

Distillation columns are tall pressure vessels used to separate chemical mixtures based on differences in boiling points. They operate under pressure and require custom fabrication to meet precise height, diameter, and material specifications.

Importance of Quality Fabrication for Chemical Processing Vessels

Fabricating pressure vessels for chemical processing requires meticulous attention to detail and adherence to industry standards. At Boardman Inc., we emphasize:

• Material Selection: Using corrosion-resistant alloys and specialized metals suited for harsh chemical environments to enhance vessel longevity and safety.
• Precision Engineering: Accurate dimensions, weld quality, and structural integrity to withstand high pressures and prevent leaks or failures.
• Compliance: Meeting ASME, API, and other regulatory codes is essential for operational certification and safety.
• Testing & Inspection: Rigorous pressure testing, ultrasonic inspections, and non-destructive testing (NDT) to verify vessel strength and durability.

Why Partner with Boardman Inc. for Your Pressure Vessel Needs?

With years of experience in heavy metal fabrication, Boardman Inc. offers custom pressure vessel fabrication tailored to the demanding requirements of chemical processing facilities. Our expert team leverages advanced technology, skilled craftsmanship, and strict quality controls to deliver vessels that perform reliably under pressure and corrosive conditions.

Conclusion

Pressure vessels are indispensable components in chemical processing plants, playing diverse roles from storage and reaction to separation and heat exchange. Understanding the types of vessels and their fabrication requirements can help chemical companies ensure safety, compliance, and operational efficiency.

If you need reliable, high-quality pressure vessels fabricated to exact specifications, trust Boardman Inc. to deliver. Contact us today to discuss your next chemical processing project and discover how our expertise can support your industrial needs.

For more information, please visit our blog page. We’ve got more topics for you!