Product Overview
The SINNA GAS Offshore Membrane Nitrogen Generation System is a fully engineered on-site nitrogen production solution designed specifically for offshore oil & gas platforms, FPSO/FSO/FLNG facilities, drilling rigs, and marine vessels.
Built for continuous 24/7 operation in harsh marine and hazardous environments, the system converts compressed air into high-purity nitrogen using advanced hollow fiber membrane separation technology. It provides a safe, reliable, and cost-effective alternative to traditional nitrogen supply methods such as liquid nitrogen delivery or cylinder storage.
Unlike conventional supply chains that depend on logistics, SINNA GAS systems enable independent nitrogen generation directly at the point of use, ensuring uninterrupted operation in remote offshore locations.
Why Offshore Operators Choose SINNA GAS
Offshore nitrogen systems are not just equipment - they are safety-critical utility systems.
SINNA GAS solutions are engineered to meet the operational expectations of:
- Oil & Gas Operators (Upstream / Midstream)
- EPC Contractors
- FPSO Operators
- Marine Engineering Companies
Key Value Advantages:
- Eliminates nitrogen logistics dependency offshore
- Reduces OPEX significantly over cylinder/LIN supply
- Designed for 24/7 continuous offshore duty
- High system availability (>99.9% with redundancy design)
- Safe operation in hazardous environments (Zone 1 / Zone 2 options)
Working Principle
The system operates using the principle of selective gas permeation:
- Compressed air is fed into hollow fiber membrane modules
- Oxygen (O₂), carbon dioxide (CO₂), and water vapor permeate through the membrane walls
- Nitrogen (N₂), having a larger molecular size, is retained and collected as product gas
- The result is a continuous, stable nitrogen stream
This process is:
- Chemical-free
- Non-cryogenic
- No moving separation parts
- Highly stable under offshore operating conditions
System Engineering Design Philosophy
SINNA GAS systems are engineered with offshore reliability standards in mind:
High Availability Design
- N+1 redundant membrane train configuration (optional)
- Continuous operation even during maintenance
- Fail-safe pressure and flow control system
Offshore Structural Design
- Skid-mounted or containerized module design
- Anti-corrosion marine-grade materials (SS316L / epoxy coated carbon steel)
- Shock and vibration resistant structure
Energy Optimization
- Optimized air-to-nitrogen conversion ratio
- Low specific energy consumption design
- Integration-ready with existing offshore air compressor systems
Technical Specifications
Nitrogen Performance
|
Parameter |
Specification |
|
Nitrogen Purity |
95% – 99.5% (standard) / up to 99.9% optional |
|
Flow Capacity |
5 – 3000 Nm³/h (custom engineered) |
|
Outlet Pressure |
6 – 10 bar(g) standard / higher via booster |
|
Dew Point |
Down to -40°C (system dependent) |
Feed Air Requirements
|
Parameter |
Requirement |
|
Air Type |
Oil-free compressed air |
|
Pressure |
6 – 10 bar(g) |
|
Oil Content |
<0.01 mg/m³ |
|
Particle Filtration |
≤0.01 micron |
|
Recommended Dew Point |
≤ -20°C |
Power & Utilities
- Power Supply: 380–480V / 50–60Hz (customizable)
- Control System: PLC + HMI touchscreen interface
- Communication: SCADA / remote monitoring ready (optional)
Offshore Applications
SINNA GAS Offshore Nitrogen Systems are widely applied in critical offshore operations:
Oil & Gas Production Platforms
- Pipeline purging & drying
- Tank inerting and blanketing
- Hydrocarbon displacement
- Pressure testing support
- Gas lift systems
FPSO / FSO / FLNG
- Cargo tank inert gas system
- Fire prevention inerting
- Maintenance purging operations
- Safety atmosphere control
Marine & Shipping Industry
- Cargo hold inerting
- Fuel tank blanketing
- Chemical tanker nitrogen supply
- Engine room safety systems
Comparison With Conventional Nitrogen Supply
|
Solution |
Limitations |
SINNA GAS Advantage |
|
Liquid Nitrogen (LIN) |
High logistics cost, storage risk |
On-site continuous production |
|
Nitrogen Cylinders |
Frequent replacement, safety risks |
No cylinder handling required |
|
PSA Systems |
Higher complexity, maintenance |
Simpler membrane technology |
|
SINNA GAS Membrane System |
- |
Best balance of simplicity, safety, and offshore reliability |
Automation & Control System
Each system is equipped with an intelligent control architecture:
PLC-based automation system
Real-time nitrogen purity monitoring (optional O₂ analyzer)
Automatic pressure & flow regulation
Alarm system (purity / pressure / maintenance alerts)
Energy optimization control logic
Remote monitoring / SCADA integration (optional)
Safety, Compliance & Certifications
SINNA GAS offshore systems can be engineered to comply with international standards:
- ATEX / IECEx (Hazardous Area Certification)
- DNV / ABS / BV Marine Classification (optional)
- ASME / PED Pressure Vessel Standards
- ISO 9001 Quality Management System
Safety design priorities:
- No high-pressure nitrogen cylinder storage offshore
- Fail-safe pressure protection system
- Explosion-proof electrical configuration (optional)
Installation & Commissioning
Installation Advantages
- Skid-mounted plug-and-play design
- Minimal offshore installation time
- Compact footprint for limited platform space
- Easy integration with existing compressor systems
Commissioning Support
- FAT (Factory Acceptance Test) before delivery
- SAT (Site Acceptance Test) offshore support
- Remote commissioning assistance available
Maintenance & Lifecycle Cost
SINNA GAS systems are designed for low lifecycle cost and minimal offshore intervention:
No chemical consumables required
Membrane modules with long service life
Simple filter replacement schedule
Minimal moving parts = low failure rate
Reduced offshore manpower requirement
Reliability & Performance Assurance
SINNA GAS designs for offshore critical uptime requirements:
- Designed uptime: >99.9% (with redundancy configuration)
- Continuous 24/7 operation capability
- Stable performance under offshore temperature/humidity variations
- Engineered for long-term unattended operation
Project Experience
SINNA GAS membrane nitrogen systems have been engineered for applications in:
- Offshore drilling platforms (Middle East / Asia Pacific regions)
- FPSO inert gas systems
- Offshore pipeline projects
- Marine tanker nitrogen blanketing systems
- EPC contractor integrated packages
Why SINNA GAS
SINNA GAS is a professional manufacturer of industrial gas generation systems, focusing on offshore and energy sector applications.
We provide:
- Custom-engineered nitrogen generation solutions
- Offshore EPC project support capability
- Global export experience
- Engineering-driven system design approach
- Reliable after-sales technical support
Our goal is to be a trusted global supplier of offshore nitrogen generation systems for critical energy infrastructure projects.
FAQ
Q: What purity levels can the system achieve?
A: Standard systems provide 95%–99.5% nitrogen purity, with optional configurations up to 99.9%.
Q: Is the system suitable for offshore hazardous environments?
A: Yes. Systems can be designed for Zone 1 / Zone 2 hazardous areas with ATEX/IECEx compliance.
Q: What is the main advantage over liquid nitrogen supply?
A: It eliminates logistics dependency and provides continuous on-site nitrogen production at significantly lower operational cost.
Q: What industries typically use this system?
A: Oil & gas offshore platforms, FPSO/FSO, FLNG, marine shipping, and petrochemical industries.
Q: How reliable is the system for offshore operation?
A: With redundancy design, system uptime can exceed 99.9% under continuous operation conditions.
Q: What maintenance is required?
A: Only routine filter replacement and periodic inspection. No chemical consumables are required.
Q: Can the system integrate with existing compressors?
A: Yes, it is designed for seamless integration with offshore compressed air systems.
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