Liquefied natural gas (LNG) is composed mainly of methane, the simplest and most abundant hydrocarbon in nature, consisting of one carbon atom and four hydrogen atoms. After the gas is extracted and the impurities are eliminated, it is cooled to -162ºC. At this temperature the gas changes to the liquid state and in the process its volume becomes 600 times smaller.
In the liquid state it can easily be stored in tanks, put into LNG carriers and transported on long hauls to the end-consumer markets where it is re-gassed and delivered.
Liquefied natural gas is transported at a constant temperature and atmospheric pressure on special LNG carriers designed and built in compliance with stringent safety standards.
The industrial development of LNG has made it possible to connect some of the largest gas fields in the world — often distant and difficult to reach — with countries that need new supply sources.
The transportation of LNG by ship makes this energy resource available in parts of the world that would otherwise be practically unreachable.