Boil-off Gas Reliquefaction System
Bunkering
The patented Moss Reliquefaction System for LNG carriers handles the boil-off gas (BOG) from the ship’s LNG tanks and returns it in liquid form back to the tanks, enabling preservation of BOG during the ship's voyage. The system hence presents flexibility in operation, and also enables the choice of a wider range of propulsion systems.
Moss Maritime
The BOG re-liquefaction is performed by extracting the heat from the BOG with a closed nitrogen compression/ -expansion cycle. This straightforward and footprint-friendly technology minimizes the required equipment which is fitted in the ship's cargo compressor room. The nitrogen cooling is reliable and operation-friendly, well suited for heavy seas operations. The Moss reliquefaction system was chosen for installation on all 31 Q-flex LNG carriers for the Qatar project, and has in addition been installed on several LNG carriers with DFDE and ME-GI propulsion.
