Natural gas liquefaction in Arctic environment: Technology aspects
Golubeva I.A., Klyuyev V.M., Bakanev I.A., Dubrovina E.P. (Gubkin Russian State University of Oil and Gas, RF, Moscow)
This paper summarises Aspen HYSYS software-based estimates for natural gas liquefaction technology in harsh Arctic environment. Driven by these findings, a dedicated process technology plant was proposed, along with its mass balance and seasonal energy and material input profiles. The most applicable technology was chosen: a LNG plant using initial cooling by propane and the main process with mixed coolants – C3MR Split MR. As new liquefaction plants under design in Russia are mainly located in Arctic regions, the authors point to key climate-related liquefaction aspects: smaller propane consumption and lower process equipment loads in colder months which benefits operating costs. In addition, the paper highlights the key LNG requirements in different consumer countries.
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