How to operate an LNG tank container? Here is a step-by-step guide based on the ten things you need to understand about LNG tank containers.
1. Understand the basics of LNG. LNG is natural gas that has been cooled to a liquid state at -162°C (-260°F) for storage and transportation. It is flammable and has to be handled and transported with caution.
2. Identify the type of LNG tank container suitable for your needs. Choose between a standard 20ft or 40ft ISO LNG tank container, or a cryogenic tank container that can store up to 40,000 liters of LNG.
3. Check the suitability of your transport mode. LNG tank containers can be transported by road, rail or sea, depending on the mode’s accessibility and regulations.
4. Ensure the safety of your container. Regular inspections must be conducted to check for leaks, damage, and corrosion. Maintenance must be carried out as needed.
5. Fill the tank with LNG by using LNG pumps. The pump must be slow and gentle to avoid agitation that could cause excessive boil-off.
6. Monitor the temperature and pressure of the LNG tank container. An LNG container’s pressure should be between 0.25 and 0.35 MPa. A pressure monitoring system should be installed to prevent exceeding the maximum allowable pressure.
7. Prepare for unloading. Prior to off-loading, all connections and valves must be checked for leaks and damages, the safety valve settings must be confirmed, and the temperature of the tank must be measured.
8. Conduct the discharge process. LNG can only be unloaded by inverting the container. The best method is by using a transfer hose or vaporizer. Be sure to wear personal protective gear.
9. Ensure proper cleaning and maintenance after discharge. The tank container must be cleaned before refilling it with LNG. All connections, valves, and safety equipment should also be checked and maintained.
10. Comply with regulations and safety standards. Keep in mind that the transport and storage of LNG is regulated by various local and international bodies. Be sure to comply with appropriate standards and guidelines.
In summary, operating an LNG tank container requires proper safety protocols and equipment, attention to details, and adherence to regulatory requirements. With proper handling, safety measures, and maintenance, LNG tank containers can provide a safe and reliable mode of transport and storage for LNG.
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