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Liquefied Petroleum Gas, more commonly known as LPG, is hydrocarbon fuel, lighter than petroleum, occurring naturally in oil and gas fields or extracted in the oil refining process. These high quality gases are very suitable for compact storage and transport in liquid form, in pressurized bulk vessels or cylinders. LPG is the generic name for commercial propane and commercial butane. These are hydrocarbon products produced by the oil and gas industries. Commercial Propane predominantly consists of hydrocarbons containing three carbon atoms, mainly propane (C3H8). Commercial Butane predominantly consists of hydrocarbons containing four carbon atoms, mainly n- and iso - butanes (C4H10). They have the special property of becoming liquid at atmospheric temperature if moderately compressed, and reverting to gases when the pressure is sufficiently reduced. Advantage is taken of this property to transport and store these products in the liquid state, in which they are roughly 250 times as dense as they are when gases. Butane is usually supplied to customers in cylinders. Propane can be supplied in cylinders or in bulk for storage in tanks at the customers’ premises.
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