الوصف

LNG is produced when natural gas is cooled to minus **9 degrees Fahrenheit through a process known as liquefaction. During this process, the natural gas, which is primarily methane, is cooled below its boiling point, whereby certain concentrations of hydrocarbons, water, carbon dioxide, oxygen, and some sulfur compounds are either reduced or removed. LNG is also less than half the weight of water, so it will float if spilled on water.

LNG is transported in double-hulled ships specifically designed to handle the low temperature of LNG. These carriers are insulated to limit the amount of LNG that evaporates.

LNG carriers are up to 1,**0 feet long and require a minimum water depth of *0 feet when fully loaded. In ***4, there were approximately **0 LNG ships operating worldwide.

When LNG is received at most terminals, it is transferred to insulated storage tanks specifically built to hold LNG. These tanks can be found above or below ground and keep the liquid at low temperature to avoid evaporation.

• LNG is produced both worldwide and domestically at a relatively low cost and is cleaner burning than diesel fuel. Since LNG has a higher storage density, it is a more viable alternative to diesel fuel than compressed natural gas for heavy-duty vehicle applications.
• In addition, LNG in heavy-duty natural gas engines achieves significantly lower NOx and particulate emission levels than diesel.