The LPG are petroleum hydrocarbons. His name, liquefied petroleum, coming from turning in the gaseous state which is liquid at atmospheric pressure by compression and cooling, requiring 273 liters of LPG vapor to obtain 1 liter of liquid LPG.

To obtain it, the oil is subjected to an operation called distillation, whereby they separate neatly, according to their densities and boiling points, the various components: light gasoline, kerosene, butane, propane, diesel oil, fuel oil and heavy oils.

The gases from the distillation forming the group are LPG butane (40%) and propane (60%), which are distinguished by their chemical composition, pressure, boiling point and calorific value.

The main uses of LPG

· Obtaining olefins as used for production of many products, including most plastics.

· Fuel for cars

· Refinery fuel.

· Domestic fuel (via bottles, stationary tanks or distribution networks).

· Industrial processes, heating and drying agricultural products.

· Fuel for electric generation.

· Fuel of new military ships and transport