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Turbo-Brayton as Subcooler - BOG reliquefaction offshore

Turbo-Brayton cryogenic systems for the reliquefaction of Boil-Off Gas

The Turbo-Brayton technology for Boil-Off Gas (BOG) reliquefaction has been specifically developed for marine applications; for shipyards, charterers or ship-owners.

It is a fast and easy-to-install skid-mounted product, that is suited to both atmospheric and pressurized storage. With cooling power available instantaneously from stand-by mode to full capacity and low electrical consumption, Turbo-Brayton technology is extremely reliable. Its maintenance interval is 5 years.

The Turbo-Brayton range has reliquefaction capacities varying from 0.2 t/h to 3 t/h, and more by duplicating modules. This boil-off reliquefication system can be installed on both new constructions and retrofitted vessels.

A Boil-off reliquefaction solution that is suited to a wide range of vessels

  • Bunker vessels and bunker barges (from 1,000 to 30,000 m3
  • LNG-powered vessels
  • LNG carriers (from 15,000 to 250,000 m3)
  • Multigas carriers
  • FSRU and FSU

Off-shore Turbo-Brayton range

Key benefits

  • Single skid solution: Easy installation, Plug and play design, Short start-up, Low footprint
  • Easy integration thanks to subcooling
  • Safety with inert and non flammable gas, leak tight
  • High reliability: with contact free, oil free technology -MTBF = 105,000 h
  • Utility free: no compress air, no oil, no nitrogen or any refrigerant gas make-up
  • Vibration free
  • Drastically reduced maintenance = few days each 5-years
  • Fully automatic, unmanned operation
  • Turndown possible between 0% and 100% and high efficiency on all operation range
  • Flexibility in operation: unlimited number of starts and stops, no waiting time between starts and stops

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Air Liquide manufactures gas production, storage, and regeneration systems for submarines and surface vessels and works on pioneering projects using our expertise in hydrogen and nitrogen.

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