LNG bunkering vessel with Type C tanks

Class overview

Bunkering vessels deliver LNG as marine fuel directly to gas-fuelled ships, usually alongside at berth or at anchorage. Type C pressure tanks suit this service because they hold cargo for extended periods between transfers without venting. Precise metering, tight vapour return, and a standardised safety interface matter far more here than raw cargo volume.

Classification

Operational role

LNG Bunkering Vessel

Containment system

Type C Pressure Tanks · Bi-Lobe Type C Tanks

Tank geometry

Cylindrical or bi-lobe self-supporting pressure vessels

Capacity class

Small-scale — indicative: below approximately 30,000 m³

Propulsion options

DFDE / TFDE

BOG management

BOG as fuel · Reliquefaction

Key systems

Operational environment

Port and coastal areas, supplying LNG as fuel to receiving vessels.

Safety and operational considerations

• Ship-to-ship bunkering requires an agreed ESD link and, where applicable, emergency release arrangements.
• Simultaneous operations need a specific risk assessment and port authority agreement.
• Manifold position, fender plan and mooring arrangement are confirmed for each receiving vessel.