Industrial CO2 Storage — Carbon Dioxide Bulk Tank Selection

Storing Industrial Carbon Dioxide? Start Here

Industrial carbon dioxide (CO2) is a versatile gas used in various industries like food and beverage, fire suppression, and even supercritical extraction. It's stored as a refrigerated liquid in insulated pressure vessels. If you're planning to store CO2, it's crucial to understand that it behaves differently than many other gases. CO2 has no liquid phase at atmospheric pressure, meaning it can turn directly from solid (dry ice) to gas. This property, combined with its heavier-than-air nature, makes it a unique storage challenge.

Can you store it in a poly tank?

No, you cannot store CO2 in a polyethylene tank. Polyethylene is not suitable for CO2 storage because it cannot handle the low temperatures and pressure requirements. Instead, CO2 storage requires insulated pressure vessels made from materials like stainless steel.

Key Storage Issue: Low Temperature and Pressure

CO2 must be stored at low temperatures and high pressures, typically between -20 to 0 degrees Fahrenheit and 250-300 psig. This requires specialized insulated pressure vessels, as CO2 can become a gas or solid at atmospheric pressure, posing unique handling and safety challenges.

The safety that actually matters

• Ensure proper ventilation to prevent CO2 buildup, as it is heavier than air and can displace oxygen.
• Use appropriate materials like stainless steel to prevent corrosion from CO2's acidic nature when wet.
• Always follow regulatory guidelines for CO2 storage and handling to ensure safety and compliance.

Common questions

Why can't I use a regular tank for CO2?

Regular tanks can't handle the pressure and low temperatures required for CO2 storage. Specialized insulated pressure vessels are necessary.

What happens if CO2 leaks?

CO2 can displace oxygen and is toxic at high concentrations, so ensure proper ventilation and monitoring systems are in place.

What materials are suitable for CO2 storage?

Stainless steel is the standard for CO2 storage due to its ability to handle low temperatures and resist corrosion.