Liquefied Petroleum Gases (LPG)
LPG stands for liquefied petroleum gas. Like all fossil fuels, it is a non-renewable source of energy. It is extracted from crude oil and natural gas. LPG is composed hydrocarbons containing three or four carbon atoms. The normal components of LPG thus, are propane (C3H8) and butane (C4H10). Small concentrations of other hydrocarbons may also be present.
LPG burns readily in air and has an energy content similar to petrol and twice the heat energy of natural gas. This makes it an excellent fuel for heating, cooking and for automotive use.
Normally, the gas is stored in liquid form under pressure in a steel container, cylinder or tank.