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Infrastructure
LNG Bunkering Technology
Transfer methods, equipment and interfaces used to supply LNG as a marine fuel.
Educational data
Schematic placeholder
Layer 01
Bunker vessel Type C tank
Layer 02
Transfer pump and metering
Layer 03
Cryogenic hose with dry-disconnect coupling
Layer 04
ESD link between both vessels
Layer 05
Receiving vessel fuel tank
What it is
- Bunkering is the supply of LNG as fuel to a receiving ship, by bunker vessel, truck or shore terminal.
- Each method has its own equipment, procedures and port approval requirements.
Where it is used
- Ports and coastal areas serving gas-fuelled ships across many segments.
Key design characteristics
- Cryogenic hoses or loading arms with dry-disconnect couplings.
- Emergency shutdown and emergency release systems on the transfer interface.
- Metering, vapour return and inerting arrangements.
Benefits
- Ship-to-ship transfer can allow bunkering alongside or during cargo operations where permitted.
- Multiple supply modes let ports scale infrastructure gradually.
Operational considerations
- Simultaneous operations require a specific risk assessment and port authority agreement.
- Compatibility between supplying and receiving vessels must be confirmed for each operation.
Related vessel segments
Related glossary terms
Technical information
- Status
- Educational overview — editorial review required
- Seeded educational summary awaiting editorial and technical review.
- Last reviewed
- 15 September 2026
- Source status
- Sources pending editorial review.
Technical parameters are indicative and may vary by vessel design, generation, shipyard, operator and intended service.