Abstract:
Liquefied petroleum gas (LPG) is a fuel gas which contains a flammable mixture of hydrocarbon gases, specifically propane, propylene, butylenes, isobutene and n-butane. LPG is used as a fuel gas in heating appliance, cooking equipment and vehicles’. It was used as early as 1860 as a portable fuel source, and its production and consumption for both domestic and industrial use have expanded ever since. A typical commercial mixture may also contain ethane and ethylene as well as a volatile mercaptan, an odorant added as a safety precaution. Liquefied petroleum gas is recovered from wet natural gas (gas with condensable heavy petroleum compounds) by absorption. The recovered product has a low boiling point and must be distilled to remove the lighter fractions and then be treated to remove hydrogen sulfide, carbon dioxide and water. LPG reaches the domestic consumers in cylinders under relatively low pressure.
