Products Overview
The LNG Regasification Plant is the final stage of the LNG supply chain, designed to convert liquefied natural gas stored at approximately -162°C back into gaseous natural gas for pipeline transmission and end-use applications.
Key Technical Parameters
|
Item |
Specification |
|
Plant Capacity |
50,000 – 10,000,000 TPY |
|
Operating Pressure |
4.0 – 7.0 MPaG |
|
LNG Storage Temperature |
approx. -160°C to -162°C |
|
Gas Composition (Methane Content) |
CH₄ ≥ 99.0% (V) |
|
Send-out Flow Mode |
Continuous / Peak shaving |
|
Regasification Duty |
Project-dependent |
|
Vaporization Temperature Range |
Ambient to controlled heating level |
|
Storage Pressure Condition |
Near atmospheric pressure |
|
Boil-off Gas (BOG) Handling |
Recovery and recondenser integration |
|
Gas Delivery Interface |
Pipeline / Power plant / Industrial grid |
|
Vaporization Media Options |
Seawater / Hot water / Ambient air |
|
Design Standards |
API / ASME / ISO / EN |
|
Process Simulation |
Aspen HYSYS verified design |
|
Operating Mode |
Onshore terminal / FSRU integration |
Working principle
LNG Carrier / FSRU
↓
1. LNG Unloading System
(Cryogenic transfer via unloading arms / hoses)
↓
2. LNG Storage Tanks
(Cryogenic storage at -160°C to -162°C, near atmospheric pressure)
↓
3. Cryogenic Pumping System
(Increase LNG pressure for vaporization process)
↓
4. Vaporization System
├─ ORV (Seawater heat exchange)
├─ SCV (Hot water via submerged combustion)
└─ Ambient Air Vaporizer (Atmospheric heat exchange)
↓
5. Gas Conditioning System
(Pressure regulation + temperature control + optional odorization)
↓
6. Gas Metering & Delivery
(Pipeline transmission/power plants / industrial users)
Key Features
- Modular process separation design dividing marine, storage, vaporization, and send-out systems into independent functional units.
- Double-walled cryogenic storage tank with perlite or vacuum insulation system for thermal isolation stability.
- LNG unloading interface designed for compatibility with LNG carriers and FSRU receiving configurations.
- Cryogenic piping system constructed with 304L stainless steel for low-temperature operating conditions.
- High-pressure LNG pump skid configured with centrifugal or submerged pump arrangement for controlled pressurization.
- Open rack vaporizer structural system using aluminum alloy heat transfer panels for seawater-based operation.
- Submerged combustion vaporizer vessel with internal tube bundle and water bath heat transfer configuration.
- Ambient air vaporizer configured with vertical or A-frame finned tube modular structure.
- Boil-off gas (BOG) system integrated with external recovery, recondenser, or compression interface.
- Multi-stage pressure regulation skid with valve manifold architecture and flow control isolation design.
- PLC-based control system integrated into skid-mounted industrial enclosure with distributed control architecture.
Project Execution & Quality Control
- Pressure testing of pipelines and vessels
- Leak detection across cryogenic systems
- UT/RT weld inspection
- System commissioning and continuous operation testing
Technical Support & After-Sales Service
- Initial technical response within 12 hours
- Remote troubleshooting within 24 hours
- On-site support within 48–72 hours (depending on region)
- Preventive maintenance planning for key systems
- Spare parts supply and replacement support
FAQ
Q: What is the main function of an LNG regasification plant?
A: It converts LNG stored at cryogenic conditions into gaseous natural gas for pipeline transmission and downstream distribution networks.
Q: What vaporization technologies are commonly used in LNG regasification systems?
A: ORV (seawater-based), SCV (hot water via combustion), and ambient air vaporization systems.
Q: Can the LNG regasification plant be adapted to different site conditions?
A: Yes, system configuration is designed based on ambient conditions, available heat source, LNG supply characteristics, and terminal layout requirements.
Q: What types of LNG receiving configurations are supported?
A: The system supports onshore LNG receiving terminals and FSRU-based floating regasification systems.
Q: What are the typical interface connections of the system?
A: The system interfaces with LNG carriers, cryogenic storage systems, vaporization units, and downstream natural gas transmission pipelines.
Q: What factors determine LNG regasification plant configuration and capacity?
A: Configuration and capacity are defined by LNG supply conditions, required send-out capacity, site environmental conditions, and downstream pipeline pressure specifications.
Q: What is the difference between ORV and SCV vaporization systems?
A: ORV uses seawater as the heat exchange medium, while SCV uses combustion-heated water circulation for vaporization in controlled conditions.
Q: What systems are typically integrated in an LNG regasification plant?
A: Typical systems include LNG unloading, cryogenic storage, high-pressure pumping, vaporization units, boil-off gas handling, and gas metering systems.
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