What is LNG
LNG is produced by cooling purified natural gas to -260 F (-162 C), which converts the gas to a liquid. In this liquid state, the volume is reduced by almost 600%.
During the liquefaction process, natural gas is cooled below its boiling point, removing most of the extraneous compounds found in the fuel. This process enables the LNG to be transported safely and efficiently to customers who do not have access to natural gas pipelines and to use natural gas as a transportation fuel.
LNG must be kept at cold temperatures, so it is stored in double-walled, vacuum-insulated pressure vessels. Typically used in medium and heavy-duty vehicles, LNG is optimal for fleets that require a longer range because liquid is denser than gas, and more energy can be stored by volume in a given tank.