Reducing Carbon Footprint in LNG Terminals with zeroBOG™

Introduction

As the world accelerates its transition to low-carbon energy, LNG terminals face mounting pressure to minimize greenhouse gas emissions. Boil-off gas (BOG) the vaporized LNG generated during transport, storage, and handling represents both a loss of valuable product and a significant source of emissions if not managed efficiently. Sulzer’s zeroBOG™ recondensation technology delivers a proven, compact solution for LNG terminals seeking to cut their carbon footprint and operate more sustainably.

The Environmental Challenge of BOG Emissions

LNG terminals and carriers generate BOG as a natural consequence of storing and transferring cryogenic liquefied natural gas. If not properly recondensed, this vapor is often flared or vented, releasing methane and carbon dioxide into the atmosphere. Methane, in particular, is a potent greenhouse gas with a global warming potential far higher than CO₂.

Efficient BOG management is therefore essential for:

• Reducing direct greenhouse gas emissions

• Preserving product value and minimizing waste

• Meeting increasingly strict environmental regulations

  
  

zeroBOG™: A Compact Solution for Carbon Reduction

zeroBOG™ is engineered to address these challenges head-on:

• Complete and reliable BOG recondensation: Ensures all vaporized LNG is re-liquefied, preventing unnecessary emissions and product loss even under fluctuating flow conditions.

• Compact, modular design: Typically five times smaller than traditional systems, zeroBOG™ is ideal for space-constrained terminals and offshore platforms.

• Operational flexibility: Maintains high efficiency and stability, supporting both onshore and offshore LNG operations, including FSRUs, FLNGs, and refueling stations.

  
  

Real-World Impact: Lower Emissions, Higher Efficiency

By capturing and recondensing BOG, zeroBOG™ enables LNG terminals to:

• Minimize methane and CO₂ emissions by eliminating the need for flaring or venting.

• Support compliance with international and regional emissions regulations, such as IMO, FuelEU Maritime, and the EU ETS.

• Enhance sustainability credentials and contribute to global decarbonization goals.

  
  

Supporting the Transition to Cleaner Energy

Efficient BOG management is a cornerstone of sustainable LNG operations. zeroBOG™ not only helps terminals and carriers reduce their environmental impact but also supports the integration of bio-LNG and hydrogen, paving the way for even lower-carbon energy solutions in the future.

Conclusion

Sulzer’s zeroBOG™ technology is a key enabler for LNG terminals aiming to reduce their carbon footprint and operate more sustainably. By preventing emissions and maximizing operational efficiency, zeroBOG™ supports the global transition to cleaner, low-carbon energy.

Ready to lower your terminal’s emissions? Contact Sulzer Chemtech to learn how zeroBOG™ can help you meet your sustainability targets.