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Baseload LNG production in Stavanger

One of our most recent references for LNG base-load production with an annual capacity of 300,000 tons of LNG is a plant built at the Norwegian west cost near the city of Starvanger, started-up for commercial production in 2010. Thanks to Linde’s proprietary, most energy-efficient liquefaction process, this new plant is cutting emission levels significantly compared with similar plants of this scale.

The plant owner Skangass is a joint venture between the energy company LYSE Gass AS and the financial investor Celsius Invest. Through its marketing company Nordic LNG AS, it will mainly target the Scandinavian and Baltic markets. Its customers will include the Linde subsidiary AGA Gas AB. Under the terms of the agreement between Linde’s Gases Division and Skangass, AGA will buy a significant amount of LNG from the new plant yearly and market it itself.

With a LNG production capacity of 900 TPD or 0.3 MTPA the plant represents a new category of LNG plant types. This category of small to mid-scale LNG plants shows the same reliability, robustness and safety features as world-scale LNG plants, while integration in existing sites is much less complex with moderate CAPEX and shorter project execution time.

The plant is operated in base load mode and employs intermediate storage of the LNG product in an insulated tank before it is loaded to road tankers or LNG carrier ships. The trucks carry the LNG over long distances to satellite stations in various cities of Norway. After revaporisation of the LNG the natural gas is finally distributed to a variety of industrial and private consumers. Another part of the LNG is transported by LNG carrier ships to the Nynäshamn LNG receiving terminal in Sweden. There it is regasified in submerged combustion vaporisers and directly routed to a nearby refinery. A smaller quantity of the LNG received in this terminal is loaded into road trucks for transport to remote locations in Sweden.

As LNG is considered the most environmentally friendly hydrocarbon fuel, it is expected that this domestic natural gas initiative creates new gas markets and provides a great improvement to the energy supply situation in Sweden. This paper describes the Stavanger LNG facilities from gas treatment, liquefaction with a single mixed refrigerant cycle in a coil-wound heat exchanger, through storage, to unloading and distribution of the LNG to various consumers in Norway and Sweden.

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