What is Liquefied Natural Gas (LNG)?
Liquefied natural gas takes up about 1/600th the volume of natural gas in the gaseous state, similar to reducing the volume of a beach ball to the volume of a ping-pong ball. This condensed volume allows transportation of the LNG over long distances at sea and efficient storage on land. LNG weighs less than half as much as water and is odorless, colorless, non-toxic, non-corrosive and leaves no residue once it evaporates. LNG neither explodes nor burns as a liquid. While at sea and on land, LNG is stored at atmospheric pressure.
Just like all natural gas, LNG actually contains mostly methane, with some smaller quantities of ethane, propane and butane. Most of the methane, propane and butane (together often called natural gas liquids – NGL) will be separated from the LNG for use as a chemical feedstock.
How Is LNG created from Natural Gas? How is it re-gasified? Is this conversion safe?
Why is LNG such a popular energy source in recent years?
How safe is LNG?
LNG facilities and LNG tankers are designed with safety as a priority. They are designed and operated in strict accordance with international and U.S. codes and regulations. Ships must meet stringent standards and codes including an extensive safety review by the U.S. Coast Guard. The Port facilities will meet very stringent environmental and safety codes from both the Federal Government and appropriate State Governments.
LNG has the best safety record of any form of hydrocarbon transportation. In the past 40 years there have been more than 33,000 LNG ship voyages without a significant LNG release or related fire or loss of life, either in port or at sea. LNG ships, with their double-hull construction, are among the best-built and most sophisticated in the world.
With regard to LNG receiving terminals, there have been very few LNG related safety incidents in the past 40 years with no incidents at an LNG import facility with off-site impacts during this time. This is due to excellent equipment and facility design, excellent safety procedures employed in the industry, stringent design and safety codes governing design, construction, and operation of storage facilities, and a well trained, highly experienced workforce. Furthermore, no incidents at receiving facilities would have occurred under the current design and operational requirements used throughout the industry today.