28.43m3 Liquid CO2 Tank Semi Trailer Cryogenic Low Temperature CO2 Bulk Transport Trailer

28.43m3 Liquid CO2 Tank Semi Trailer Cryogenic Low Temperature CO2 Bulk Transport Trailer

Liquid CO2 cryogenic tank semi-trailer is preferred bulk LCO₂ transport equipment for industrial gas, CCUS and oilfield EOR projects. High vacuum double-wall insulation stabilizes liquid CO₂ condition and greatly cuts boil-off loss. The trailer integrates safety relief, emergency shut-off, level & pressure monitoring system, compliant with UN2187 hazardous goods transport. Global pressure vessel certifications available. We supply one-stop solution: tank design, full assembly, export certification, factory inspection, operator training and spare parts support, helping gas operators improve transport efficiency and reduce cost per ton-km. Custom volume from 20~50m³ for long haul and regional distribution.

✅ Dual-phase material tank: 16MnDR low-temperature steel or S30408 stainless steel for the inner tank, and Q345R carbon steel for the outer tank, taking into account both low-temperature toughness and structural strength.

✅ Multi-layer composite insulation: polyurethane foam layer vacuum interlayer (optional), effectively control static evaporation rate.

✅ High-precision liquid level system: Buoyancy liquid level gauge is more accurate and stable than ordinary digital liquid level gauge.

✅Pressure maintenance system: built-in pressurized vaporizer, using heat or engine coolant to maintain the pressure in the tank above the three key points of CO ₂, preventing dry ice from forming.

✅ All stainless steel pipeline valve: reliable under low temperature working conditions, no risk of low temperature cold brittleness

1.CO ₂ special design: Different from liquid oxygen/liquid nitrogen tank trucks, our LCO ₂ tank trucks have made a special pressure management system optimization for the three key points (5.18 bar/-56. 6 °C), from the design source of the risk of dry ice blockage.

2.Pressure retaining performance measurement: In the full tank state of vacuum insulation type, the safety valve will not be opened for 15 to 30 days, reaching the vacuum level of the static storage tank level.

3.Chassis reliability: standard BPW axles, maintenance, guaranteed attendance

1.Bulk LCO₂ distribution for industrial gas companies (beverage, welding, cleaning shielding).

2.CO₂ land transport for CCUS carbon capture projects.

3.CO₂ EOR enhanced oil recovery for oilfield.

4.Raw LCO₂ supply for dry ice factories.

5.Low-temperature raw material for chemical, pharmaceutical & food industry.

6.Feed transport for large cold chain and fire suppression system.

Operation Notes:

1.Pressure bottom line awareness: CO ₂ pressure must never be lower than 70 psig (about 4.8 bar). Below this value, liquid CO ₂ will quickly solidify into dry ice, blocking pipelines and safety valves, and subsequent boost recovery is extremely difficult and dangerous.

2.The filling rate shall not exceed 95%. The CO ₂ coefficient is large, and overcharging can easily cause the safety valve to take off or overpressure when the temperature rises.

3.Loading and unloading operators must undergo special training and be equipped with low-temperature protective gloves, eye protection masks, and safety shoes. CO ₂ is heavier than air, and leaks are prone to accumulate in low-lying places, leading to the risk of suffocation.

4.Do not defrost frozen parts with open flame or direct heating. If the pipeline is frozen, natural temperature rewarming or low-pressure hot nitrogen purging should be used.

5.Before stopping use, it must be emptied and slightly positive pressure (it is recommended to fill nitrogen to 0.05 ~ 0.1 MPa) to prevent wet air from entering the liner and causing corrosion and ice blockage.

6.Safety valves and pieces must be calibrated periodically, and must not be arbitrarily or shielded. Safety valve take-off is the primary signal of vacuum deterioration.

Standard Packaging Flow:

1.Blind plates or plugs are installed at tank pipeline interfaces (liquid phase ports, gas phase ports, pressurization ports) to prevent foreign objects from entering and collision damage during transportation.

2.Blind plates or plugs are installed at tank pipeline interfaces (liquid phase ports, gas phase ports, pressurization ports) to prevent foreign objects from entering and collision damage during transportation.

3.The outer surface is covered with PE protective film to prevent salt spray by sea and scratches by land transportation.

4.On-board documents: Product qualification certificate, pressure vessel supervision and inspection certificate, certificate, instruction manual are packed into waterproof file bag and fixed in the cab.

[Precautions during transportation]

Transport vehicles: Special vehicles or special low-flatbed transport vehicles with dangerous goods transport qualifications must be used.

Fixing requirements: Welded limit blocks or high-strength binding belts are used for double fixing between the tank car chassis and the transport car platform to prevent displacement on the way.

Dangerous goods label: UN 2187 (liquid carbon dioxide, refrigerated liquid) dangerous goods label and diamond mark are hung at the rear of the car.

Avoid exposure to the sun and high temperature: In case of high temperature weather during transportation, the pressure in the tank may naturally increase. Pay attention to observe the pressure gauge, and relieve a small amount of pressure through the gas phase valve if necessary.

Inspection at the destination: Before unloading, check whether the tank body has collision deformation, whether the blind plate of the pipeline interface is intact, and whether the pressure gauge reading is within the normal range.

1.Warranty: 12 months for pressure vessel main body; 12 months for valves, gauges and safety accessories.

2.24h bilingual technical hotline, WhatsApp / Wechat / email online support.

3.Full document package: pressure vessel certificate, NDT, hydrostatic & vacuum test report, English O&M manual.

4.Remote troubleshooting and video maintenance guidance. On-site engineer service available for major overseas issues (travel cost negotiable).

5.Long-term original spare parts supply.

6.Free online training, optional on-site practical training.

7.Lifelong technical consultation and guidance for statutory periodic inspection.

The core of model selection lies in the matching of transportation radius, medium specification and discharge:

Step 1: Determine the volume.

Single-trip traffic volume ÷ CO ₂ density (about 1.02 ~ 1.10 t/m ³ at-20 °C) ≈ demand volume. 20 m ³ ≈ 20 tons, 25 m ³ ≈ 25 tons, 26.4 m ³ ≈ 26.5 tons.

Step 2: Determine heat retention.

Short-distance high-frequency (< 200km): economic polyurethane foaming is enough, and the daily evaporation loss is controllable.

Long distance/low frequency (> 300km): Vacuum insulation type is recommended, the static evaporation rate is lower, and the pressure holding time is longer.

Step 3: Determine the discharge configuration.

Unloading without pump: Relying on pressure difference and self-flow, it is suitable for scenarios where the unloading point has tank gas return conditions.

With cryopump: suitable for scenarios that require rapid discharge, no return gas conditions, or poor discharge height.

Step 4: Chassis and axle count.

The domestic three-axle semi-trailer has a total weight limit of 49 tons; Export shall be confirmed according to the axle load regulations of the destination country.

✅ Direct manufacturer, transparent quotation without middleman.

✅ One-stop certification service for ASME/PED/EAC to save your certification time.

✅ Rich overseas delivery experience, bulk projects in SEA, Middle East, South America, Africa.

✅ 24h bilingual technical support & fast spare parts supply.

✅ On-site operator training to reduce your maintenance learning cost.

✅ Full project cycle service: design, production, supervision, factory acceptance, sea shipment & after-sales.

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