April 24, 2023 [HydrocarbonEngineering] – Venture Global LNG has announced the successful raising of the roof of the second LNG storage tank at the Plaquemines LNG export facility in Plaquemines Parish, Louisiana, US.
This major project milestone was completed ahead of schedule and comes just seven weeks after the roof raising for tank one.
“Today represents another major milestone in the construction of Plaquemines LNG, with both roofs now raised for the tanks serving Phase One,” said Mike Sabel, CEO of Venture Global LNG. “With Phase One deep into construction and our recent FID and full notice to proceed on Phase Two, Plaquemines is well positioned to be the next new major LNG capacity to reach the global market.”
This is the second tank of four in total for Plaquemines LNG. When operational it will be capable of storing 200 000 m3 of LNG. The roof weighs 900 t and is 294 ft in diameter. Air raising allows for better and safer access as well as a faster construction schedule, as the roof can be erected concurrently with the shell. The tank dome was raised in 71 minutes using 0.3 psi of pressure underneath the roof.
It was raised from ground level to the top of the wall height of 130 ft. Eventually, the tank will have an inner tank made from 9% nickel alloy and outer wall and outer roof made from concrete to provide full containment of the LNG and provide the maximum level of resilience and safety.
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