LNG storage tank

The tank is sealed with an aluminium alloy roof at ground level.

Historically there have been problems with some unlined tanks with the escape of LNG into fissures, the gradual expansion of extent of the frozen ground, and ice heave which have limited the operational capability of in-ground tanks.

All piping connected to the LNG tanks, whether above ground or in-ground, are routed through the top of the vessel.

In LNG storage the pressure and temperature within the tank will continue to rise.

[3] The world's largest above-ground tank (Delivered in 2000) is the 180 million liters full containment type for Osaka Gas Co., Ltd. (2) The world's largest tank (Delivered in 2001) is the 200 million liters Membrane type for Toho Gas Co., Ltd.[4]