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GE Oil and Gas technology is powering a gravity-based offshore liquefied-natural-gas (LNG) terminal located 17km offshore from the town of Rovigo, near Venice, on Italy’s north-east coast.

Owned and operated by Adriatic LNG, the terminal is moored in 30m-deep waters and uses an artificial island gravity-based structure (GBS) for offshore LNG.

At the heart of the engineering solution is a large reinforced concrete box that rests on the sea floor and houses two LNG storage tanks.

Overall, the facility is 375m long and 115m wide.

The project involves the offshore deployment of a GE10-1 dual-fuel low-emissions gas turbine system.

The new gas mega-terminal will increase Italy’s regasification capacity by 200 per cent, is larger than two soccer fields and as high as a 10-story building and has two LNG tanks with a combined annual capacity of 8 billion cubic metres, representing around 10 per cent of the country’s yearly gas demand.

The Adriatic LNG-operated terminal receives LNG shipments from Qatar (80 per cent), Egypt and Trinidad (remainder) twice a week.

The LNG is regasified at the terminal and then transported to an onshore metering station before it enters the Italian gas network.

The LNG mega-terminal’s operations are powered by three GE10 low-emission gas turbines – two GE10-1 single gas modules and one GE10-1 dual-fuel gas turbine, providing a total power output of 30MW to provide optimum energy efficiency.

All three units feature GE advanced dry low NOx (DLN) combustion systems that achieve NOx emissions below 15 parts per million, enabling the mega-terminal to meet the stringent emissions reduction and environmental regulations prescribed by the Italian regulator.

GE Oil and Gas supplied the units to Aker Kvaerner Contracting International, the Adriatic LNG primary contractor on the mega-terminal project.

GE will maintain the terminal’s power-plant equipment through an 18-year contract service agreement.

The gas turbine modules were assembled and full-load tested at GE in Avenza, located near the company’s components testing site in Massa, Italy.

GE Oil and Gas

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