Liquefied Natural Gas
Liquefied natural gas (LNG) is a promising and environmentally friendly source of energy of the 21st century. It is produced by cooling natural gas to around −160°C, at which temperature the gas becomes a liquid. In its liquid form, natural gas is reduced in volume by a factor of about 600 times.
LNG is a clear, colourless and odourless liquid, the density of which is less than half that of water. The gas remains liquid at normal atmospheric pressure which makes its storage and transportation by specially designed tankers efficient. Before being distributed to end users, LNG must be returned to its gaseous state at regasification terminals.
The project uses a proprietary double mixed refrigerant (DMR) process. This is the most advanced process today adapted to ensure the maximum efficiencies in the cold winter conditions of the Sakhalin island at an optimal performance of the compressors.
LNG produced by the Sakhalin II project is the most convenient and cost-effective way to deliver Russian gas to the Asia-Pacific region. For Russia, that is an opportunity to reach a new market, establish relations with reliable customers for its energy resources and promote long-term sustainable development of the Far East.
LNG offers a number of advantages over pipeline gas infrastructures.
- LNG can be delivered from any liquefaction plant to any regasification terminal.
- Liquefied natural gas takes up about 1/600th of its volume in the gaseous state, making its transportation and storage more efficient.
- LNG is the only suitable technology to bring gas to markets across oceans.
- LNG provides better opportunities for holding natural gas for future use.
- LNG is non-toxic and stored in insulated tanks at slightly above atmospheric pressure at some 112 degrees Kelvin, or −161°C.