CO₂ Storage Tank

The CO₂ Storage Tank is a component used in industrial CO₂ supply systems, designed to hold carbon dioxide in either liquid or gaseous form under controlled pressure and temperature. It functions as a buffer and reservoir, ensuring a steady supply for downstream processes such as carbonation, chemical reactions, or carbon capture. The tank is typically constructed from carbon steel or stainless steel, with material selection depending on the operating temperature and pressure requirements. Key design parameters include a design temperature range of -40 to 50°C, and a storage capacity of 5 to 100 m³. The filling ratio, typically 0.8–0.95, indicates the maximum liquid fill level to prevent overpressure. Insulation thickness ranges from 80 to 200 mm to minimize boil-off and maintain temperature stability. Safety is ensured through a safety valve set at 1.6–2.0 MPa, which must exceed the design pressure to prevent rupture. Leakage rate is limited to ≤0.1 mL/min to minimize CO₂ loss and ensure operational safety. The tank's weight ranges from 5,000 to 30,000 kg, and its footprint occupies 10 to 50 m², affecting foundation design and transport logistics. These values are reference ranges; actual specifications must be confirmed with the manufacturer for specific models and applications. The tank operates by maintaining CO₂ in a stable state, typically liquid under pressure, using insulation and pressure regulation. Safety valves and pressure relief systems prevent over-pressurization, allowing controlled withdrawal for downstream use. When selecting a CO₂ storage tank, verify design pressure, temperature, capacity, and material compatibility with your process requirements. Check that the safety valve set pressure aligns with the system's maximum allowable working pressure. Confirm insulation thickness based on ambient conditions and desired boil-off rates. Ensure the tank's footprint and weight are compatible with your site layout and foundation. Regular maintenance includes inspecting safety valves, checking for leaks, and monitoring insulation integrity. Failure signs include pressure fluctuations, visible corrosion, or increased boil-off. Always consult the legal manufacturer for model-specific data and compliance with applicable standards.

The CO₂ storage tank maintains carbon dioxide in a stable state, typically as a liquid under pressure, through effective insulation and pressure regulation.Safety valves are set at 1.6–2.0 MPa to relieve excess pressure and prevent over-pressurization. The filling ratio, kept between 0.8 and 0.95, ensures that the tank is not overfilled, allowing for thermal expansion. Insulation, with a thickness of 80–200 mm, reduces heat ingress, minimizing boil-off and maintaining the required temperature. Controlled withdrawal of CO₂ is achieved through outlet valves, allowing downstream processes to draw gas or liquid as needed. The tank's leakage rate is limited to ≤0.1 mL/min to ensure minimal loss and safe operation.