FAQ


Q. What is the Center for Liquefied Natural Gas (CLNG)?

A. The Center for Liquefied Natural Gas (CLNG) is a trade association of LNG producers, shippers, terminal operators and developers, and energy trade associations.  CLNG is a clearinghouse of educational and technical information.  It also facilitates rational issue discussion and the development of public policies that support LNG’s contribution toward economic growth in the United States.

Q. What is LNG? 

A. LNG stands for liquefied natural gas. It is natural gas cooled to approximately -260° Fahrenheit at normal air pressure. It is odorless, non-toxic, non-corrosive and less dense than water. Essentially, it is the same as the natural gas more than 65 million Americans use to heat and cool their homes, only in a liquid state so that it can be easily transported.

Q. How is LNG used?

A. LNG is used across the residential, commercial and industrial sectors for purposes as diverse as heating and cooling homes, cooking, generating electricity and manufacturing paper, metal, and glass, among many others.  LNG is also increasingly being used to fuel heavy-duty vehicles.

Q. Is LNG safe?

A. The LNG industry’s highest priority has always been safety and security, which is reflected in the industry’s enviable safety record.  LNG is not stored under pressure and it is not explosive.  Although a large amount of energy is stored in LNG, it cannot be released rapidly enough if released into the open environment to cause the overpressures associated with an explosion.

Q. Is LNG environmentally friendly? 

A. Natural gas is the cleanest burning fossil fuel and is being used throughout the world to reduce carbon dioxide emissions.  LNG is odorless, non-toxic and non-corrosive.  When exposed to the environment, LNG rapidly evaporates, leaving no residue on water or soil.  If spilled, LNG would not result in a slick because 100 percent of it evaporates to a gas leaving no residue behind.

Q. What are the benefits of exporting LNG from the U.S.?

A. Exporting a small percentage of America’s vast supply of natural gas will lead to tens of thousands of construction and manufacturing jobs, narrow our trade deficit by billions of dollars and help allies in need like Japan cope with a dire energy crisis.

Q. How does LNG benefit the U.S. economy?

A. The U.S. is well-positioned to supplement our natural gas supply when U.S. prices spike or where supply bottlenecks exist by importing LNG.  When U.S. natural gas prices are low, the ability to export natural gas will bring enormous benefits to the U.S. economy in the form of jobs, increased tax revenues, and a reduced trade deficit.

Q. How is LNG used as a vehicle fuel?

A. LNG is increasingly being used to fuel heavy-duty vehicles and reduces greenhouse gas emissions by 10 percent versus conventional liquid fuels. According to Natural Gas Vehicles for America, LNG requires only 30 percent of the space of Compressed Natural Gas (CNG) to store the same amount of energy. In order to keep the LNG cold, LNG is stored on-board vehicles in thermally insulted storage tanks. When the engine in natural gas vehicle (NGV) is started, the LNG is heated, converting it back to a gas. From that point on, the fuel supply process is similar to the system on CNG-fueled engines.

Q. Doesn’t the January 2004 explosion at an LNG facility in Algeria prove that LNG is dangerous?

A. No. In January 2004, an explosion took place at an LNG export liquefaction plant in Algeria. A board of inquiry determined that a propane gas leak was the primary cause of the accident. A nearby boiler was the source of the ignition, which ignited the vapor cloud in a confined space causing an explosion and fire. It should be noted that the explosion and the resulting fire did not damage LNG storage tanks.