LNG · Marine
LNG Regasification (FSRU)
The import end of the LNG chain, where the liquid is warmed back into gas and sent into the pipeline grid. A floating storage and regasification unit does this on a ship moored at the import site.
What it does
Pumps raise the LNG to send out pressure, around 100 bar, and vaporizers warm it with seawater or a closed glycol loop until it leaves as gas at about +10 °C. A floating unit is faster and cheaper to put in place than an onshore terminal with its own tanks.
Basics
| Send out pressure | About 100 bar |
| Heating | Open loop seawater or closed loop glycol |
| FSRU storage | About 125,000 to 263,000 m³ |
| Onshore terminals | Often over 400,000 m³ |
Common failures
- Cold seawater discharge limits from the environmental permit restrict the send out rate
Troubleshooting
- Symptom
- Send out rate below target
- Likely cause
- Seawater too cold or discharge limits
- What to check
- Switch to closed loop heating or adjust the rate within the permit