Science & Innovation: GTT’s new Mark III Flex technology receives ABS approval

Image courtesy of GTT

GTT, the French maker of LNG containment systems awarded to equip the Coral South FLNG with its Mark III membrane containment system, said the evolution of its Mark III Flex technology has received the general approval from the American Bureau of Shipping (ABS). 

Philippe Berterottière, CEO of GTT said the enhanced technology is a complementary solution to the Mark V system.


This latest variant of the sea-proven Mark III Flex technology benefits from an improved insulation performance, GTT said on Tuesday, adding it allows for a daily boil-off rate of 0.07%V, compared to the 0.085%V per day of the previous version.

The new boil-off rate is equivalent to that of Mark V containment system, GTT said adding the evolution of its Mark II Flex technology comes as a response to LNG shipping industry’s growing efforts to reduce the level of daily evaporation of the LNG cargo in modern vessels.

Coral South FLNG, with a capacity of 238,700 cubic meters and will integrate eight LNG tanks, GTT said, adding it would be the second biggest FLNG unit in the world.

The delivery of the vessel to be operated off the coast of Mozambique is scheduled for 2021.

Italian energy giant and LNG player Eni, together with its partners, last week sanctioned the development of the Coral South FLNG project. It is the first project in the development of the considerable gas resources discovered by Eni in Area 4 of the Rovuma Basin.

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