According to European Standard EN 1160:1996 liquefied natural gas – LNG is a colorless liquid in which the dominant component is methane. It may contain small amounts of ethane, propane, nitrogen or other components normally found in natural gas. Polish Standard PN-EN 1160:2008 more specifically defines the amount of methane (> 75%) and nitrogen (<5%).
- in an open space, LNG and its vapors are not explosive, odorless and non-toxic;
- does not mix with water or ground but evaporates into the air;
- during the condensation of methane into LNG, the volume is reduced by about 600 times, which significantly reduces the costs of transportation and storage:
- with 1 m³ of LNG you can get 600 m³ of gas that can be transmitted in the network;
- with 1 ton of LNG, we get 1330 m³ of network gas.
LNG is used wherever it is not possible to build gas pipelines and where there are no local natural gas deposits.
LNG is transported in tanks under a pressure of 2 bar and with a temperature of – 162 ° C. The cistern, construction allows the pressure to rise to approx. 7 bar. Tank capacity can vary from 32 m³ (12 t of LNG) for a container tank, and to up to 54 m³ (20 t of LNG) – for a tanker.
Using LNG as a source of energy will allow you to reduce the cost of generating heat for heating and technological purposes.