WHAT IS?      Liquefied Natural Gas (LNG) is the liquid version of natural gas. It is inodorous, non toxic and non corrosive. Represents the best alternative for sites where is not convenient bring gas through ducts or electricity generation, so it is transported by ships. It could be associated to petroleum or without it. Between its main components are variable percents of methane (83%), ethane (7%), nitrogen (1%), propane (4%), carbonic dioxide (1%), pentane (1%) and butane (3%).   STATUS    The LNG begins with a liquefied process in which are extracted some elements like carbonic dioxide and water to avoid their solidification with low temperatures. LNG projects consist in cooling the natural gas at temperatures of 160ºC approximately, to liquefied the fluid. Because of that, its volume is reduced 600 times. Then the product is transported by special ships to required ports. These craft are specially designed with double vessels to avoid any escape or rupture in case of accidents. They also have a special system of contention inside the interior vessel to maintain the atmospherically pressure and an adequate temperature. Once at port, LNG is storage in liquid state until suffer the vaporization process to recover its original status at high pressure. After that, LNG is available to be transported by ducts to its final destiny.   APLICATIONS ADVANTAGES     Domestic uses     Transport     Electricity generation    Industries     Lower energetic costs.     Expand spaces for natural gas storage.     Lower risk in explosions: quickly evaporation without wastes in case of leakage.     Lower contamination: it has the lowest ambient impact because of its high hydrogen content. LNG wastes are dissipated on the air and do not contaminate soil or water. As vehicle fuel reduce nitrogen oxide emissions by 70%, and do not produce sulphur compounds or particles. In electricity generation sulphur dioxide (SO2) are virtually eliminated and carbonic dioxide ones (CO2) are reduced in 40 percent.     Increasing world market: between 1997 and 2006 exporter countries have increased the LNG traffic in more than 40 percent.