Construction of the inner LNG tanks - 2009-2010

The steel roof for the outer tank structure will be raised by means of air pressure and welded into place to create a working space that is not influenced by the weather. A start can then be made on constructing the steel inner tank, containing 9% nickel. Floor insulation will then be laid, followed by the floor plates for the tank. The tank wall will then be erected, largely by means of automatic welding. Following a water test of the inner tank, thermal insulation will be placed between the inner and outer tank walls. The next step is to fit the roof insulation and the pumps and instruments. The tanks will then be ready for final inspection before being sealed for good. It there are no incidents, the tanks will remain in operation unopened for more than 25 years. LNG is non-corrosive and no oxygen will be present in the outer tank.