Is LNG in liquid or gaseous state from the receiving station to the long-distance pipeline?
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Is LNG in liquid or gaseous state from the receiving station to the long-distance pipeline?
It should be in liquid form to facilitate transportation.
What is the temperature of the liquid? How should the pipelines be insulated for maintenance? By how much will the cost of pipeline materials increase?
Are you asking about the distance from the receiving station to the point of use? LNG is transported in gaseous form from the receiving station to the terminal station, similar to the natural gas pipelines between China and Russia, China and Kazakhstan, and China and Turkey.
If it’s liquid, isn’t heat preservation needed?
The LNG receiving station delivers gaseous natural gas to the high-pressure pipeline network. The LNG in the LNG storage tank is transported outside the tank via submersible pumps, and then pressurized by high-pressure pumps before being vaporized in an open-type seawater vaporizer for transmission.
If it’s in gaseous form, why is it called LNG and not CNG?
Hello, sir. 1. LNG – Liquefied Natural Gas, CNG – Compressed Natural Gas ； 2. LNG is generally ultra-cold liquid natural gas, which can be stored at ultra-low temperatures under slight positive pressure or at low temperatures under pressure (with the pressure generally below 1.4 MPa) ； CNG – stored at near-room temperature, with a pressure of around 20 MPa ； 3. Whether it is LNG or CNG, what is supplied to combustion equipment for burning is in gaseous form and is called natural gas; there is no significant difference between the two in essence.