Offshore Gas Compression Solutions

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Discover TMIC’s advanced offshore gas compression solutions designed for mission-critical operations. Our compressors deliver exceptional reliability, safety, and efficiency in harsh offshore environments. From LNG boil-off gas (BOG) management to ammonia vapor systems, TMIC technology ensures smooth and continuous operations while reducing emissions and optimizing energy recovery.

Discover our Offshore Solutions

NG - SCG Series Marine

Marine-ready screw compressors for NG/SCG service, built for reliability, class compliance, and harsh conditions.

Why Offshore Compression Matters?

Offshore platforms face unique challenges in managing LNG boil-off gas Ammonia Vapor Systems and Control Air Systems. These processes are essential for maintaining safe tank pressure, preventing emissions, and ensuring uninterrupted production. TMIC solutions are engineered to meet these demands with precision and durability.

What is Offshore Gas Compression?

Offshore gas compression involves handling vaporized gases like methane and ammonia to maintain operational safety and efficiency.

Boil-Off Gas (BOG): LNG stored at −160 °C naturally evaporates, creating boil-off gas that raises tank pressure. Compressors remove and repurpose this gas for fuel systems, recondensing, or routing to flare/reliquefaction systems.
Ammonia Vapor Systems: Used for refrigeration and vapor recovery, ammonia compressors prevent venting losses and support sustainable operations. Compact, skid-mounted, and ATEX-certified designs make them ideal for offshore platforms.
Control Air Systems: The Control Air System, or Instrument Air System, is essential for offshore platforms. It delivers clean, dry, and stable compressed air to operate control valves, pneumatic actuators, instrumentation panels, safety systems like ESD and Fire & Gas, and utility tasks such as purging and calibration. Acting as the “nervous system” of plant automation, its reliability depends on the compressor, a critical component for safe and efficient operations.

TMIC Compressors: Key Benefits

Safe and efficient BOG management
Zero greenhouse gas potential in ammonia systems
Long-life, precision-engineered components
Comprehensive technical support and fast delivery
High reliability via redundancy and automation
Corrosion-resistant design for marine environments
Clean, dry air ensures precise valve and instrument operation

Choosing the Solution

Selecting the right compressor for your offshore application requires careful consideration of:

Operating conditions
Reliability, safety standards
Environmental challenges

Our compressors are engineered to deliver stable performance in harsh marine environments, with corrosion-resistant materials, redundancy for uninterrupted operation, and automation for precise control. When uptime and safety matter most, we provide the solution that keeps your platform running. TMIC experts work closely with you to design a solution that fits your exact needs.

Main Offshore Applications

TMIC compressors serve critical roles in:

LNG Operations: Managing boil-off gas for safety and energy recovery
Ammonia Refrigeration: Cooling LPG and process gases, cold storage for crew supplies
Vapor Recovery: Preventing emissions and reducing environmental impact
Energy Systems: Supporting fuel gas supply for engines and turbines
Control Air System: provides a stable air supply for pneumatic controls, ensuring reliability through redundancy and automation.

Applications in Offshore Applications

Boil Off Gas (BOG)

When LNG (at around −160 °C) is stored or transported, a small portion of it evaporates due to heat ingress — even with good insulation. This vaporized methane is called Boil-Off Gas (BOG). Because the LNG tank is at near-atmospheric pressure, the evaporated gas increases the tank pressure. To keep the tank safe and pressure-stable, the BOG must be removed, and that’s where the compressor comes in.

Why it matters: Our BOG compressor is designed to:

Draw off the vaporized methane from the LNG tank
Compress it to a higher pressure for one of several purposes
Send it to the fuel gas system (for gas engines or turbines)
Recondense it back into liquid using a BOG recondenser
Send it to a flare or reliquefication system if not usable.

Ammonia Vapor system

Ammonia (NH₃) is used offshore mainly for refrigeration and vapor recovery due to its: excellent thermodynamic efficiency, zero ozone depletion potential (ODP = 0), good availability, and Low cost.

Why it matters: Our compressors are part of closed-loop ammonia vapor systems used in:

Refrigeration of process gas and liquids (e.g., gas dehydration, LPG cooling)
Cold storage (food, crew supplies)
Vapor recovery from ammonia storage or utilities (to prevent venting losses.

Because of space and safety constraints, systems are compact, skid-mounted, and ATEX-certified for explosive environments.

Comprehensive Support for Offshore Application

Beyond our high-quality gas ends, TMIC brings an unmatched level of technical support and expertise to the table. We ensure that our customers have everything they need to keep their operations running smoothly, including a wide range of aftermarket parts and service solutions. 

Ready to Optimize Your Offshore application?

Partner with TMIC for proven technology, global support, and commitment to your success.