French LNG fuelling firm Air Liquide has fitted two Turbo-Brayton cryogenic units for shipping company BW LNG to store LNG.
The installation procedure was carried out on a BW Magna floating storage and regasification unit (FSRU) and will support the vessels in supplying natural gas to the largest LNG-to-power complex in Latin America.
“This floating giant, BW Magna, is intended to store and regasify natural gas that is transported by sea from production regions of the world,” a spokesperson for Air Liquide said.
The Turbo-Brayton solution prevents boil-off and maintains LNG at cryogenic temperature based on the principle of subcooling, allowing the system to recondense 3.2 tonnes of LNG per hour.
“The Turbo-Brayton solution has many advantages. The system is extremely easy to install on the vessel, as it is delivered pre-assembled on its single skid, and it only requires water and electricity to operate in an optimized way,” Air Lqiuide notes.
Relying on motors on magnetic bearings, the system eliminates oil while limiting the need for servicing to once every five years. This success once again shows that Turbo-Brayton technology is a great choice for maritime applications.
First plant online Q2
The system was deployed near Açu Port in the municipality of São João da Barra in the Brazilian state of Rio de Janeiro. Built by Gás Natural Açu (GNA) the facility will be partly fuelled by LNG stored at sea aboard the FSRU.
“Shipping company BW LNG has signed a 23-year contract to store and regasify natural gas at sea before transferring it to the electricity generation plant operated by GNA. The BW Magna FSRU can hold 174,000 m³ of natural gas at -160°C in its four cryogenic tanks,” Air Liquide states.
The first plant in the complex is scheduled to start commercial operation in the second quarter of the year.