LNG as marine fuel

The liquefied gas at the heart of the marine transition

With Global Sulphur Cap 2020, the latest regulation adopted by the International Maritime Organization (IMO), merchant vessels’ ship-owners have to comply with new Sulphur oxide emissions of not more than 0.5% worldwide, against 3.5% today by 2020.

Compared to Heavy Fuel Oil (HFO), the use of LNG allows substantial reductions of more than 99% of Sulphur emissions, 80% for nitrogen oxides and 20% for carbon dioxide and is considered as the greenest fossil energy. Hence, LNG is considered as a real technological breakthrough to reach compliance and keep competitiveness at the same time.

Field of application of the GTT technologies with respect to LNG as a marine fuel

The applications for using LNG as fuel are varied. GTT proposes its technologies to equip commercial vessels such as:

  • Container ships
  • Cruise vessels
  • Bulk and Ore carriers
  • Tankers
  • etc.

GTT can also offer solutions for each link in the logistic chain:

  • Small and medium-capacity LNG carriers used as refuelling vessels and suitable for inland waterways and coastal zones;
  • bunker barges used to bunker vessels in proximity to ports and coasts,
  • floating storage structures and bunkering stations placed on the seabed (Gravity Based System).

GTT offer on LNG as fuel applications

Specificities and advantages of membrane tank

membrane tanks advantages

GTT engineering scope

GTT can provide support in the following areas:

  • Assist clients in specifying their requirements and translating these into a membrane based solution;

  • Elaborate concept designs (including basic design for FGHS taking into account cost, arrangement and operational constraints);

  • Develop basic designs including sloshing assessment, bill of materials, cost evaluations and building methods;

  • Develop detail engineering during project execution.

Services provided

GTT is able to:

  • provide Ship-owners with accurate pressure rise calculation in operation or during idle time with and without consumption;

  • simulate ship-to-ship (STS) transfer and bunkering operation between any type of tank and any size;

  • guarantee BOR of membrane system (optimized dimensioning of Fuel Gas Handling System);

  • LNG tank commissioning (hundreds of LNG tanks already commissioned by GTT);

  • Inspection, maintenance and repair of LNG tank

  • LNG Training Services: courses and software (particularly well suited for newcomers in LNG industry);

  • Assistance to first bunkering operations (advising the world’s first LNG bunkering operations);

  • HEARS – Hotline for emergency situations (available 24/7 to manage any emergency situation involving the LNG tank).


LNG-fuelled ships scanner