6 FUEL, it is used in power plants, ships and large heating installations. California's Bunker C fuel oil has high sulfur content, which causes air quality concerns when burned as fuel. In electric utility operations, a busbar is a conductor that serves as a common connection for two or more circuits. It may be in the form of metal bars or high-tension cables. A hydrocarbon gas found in the earth along with natural gas and oil.
Butane turns into a liquid when put under pressure.
It is sold as bottled gas. It is used to run heaters, stoves and motors, and to help make petrochemicals.