LNG (Liquifed Natural Gas) is the usual natural gas cooled down to -160 °C. In this state of matter, it has a volume about 630 times smaller than in the gaseous state, thanks to which the “energy density” increases. Furthermore, the liquefaction process of natural gas requires its thorough purification from carbon dioxide, propane-butane, moisture, liquid hydrocarbons and helium, as a result of which it consists almost entirely of pure methane (approx. 95%). It does not contain sulphur compounds, does not have toxic properties and spreads immediately in the atmosphere, which makes the LNG fuel ecological and safe.
In the era of rapidly shrinking oil reserves and more and more contaminated atmosphere, LNG is no longer merely an alternative and is slowly becoming one of the main fuels in the world. Apart from the ecological aspect, what speaks in favour of LNG is also the economic aspect (possibility of purchase on global markets) and the fact that it enables diversification of supply (independence from transmission through pipelines) and thereby ensures energy security.