Liquefied Petroleum Gas (LPG)

Whistler International Group is active in LPG trading. Asian countries are our major markets.

Liquefied petroleum gas (LPG) combines butane and propane. This inexpensive, clean fuel produces 75% less carbon monoxide and 85% less hydrocarbons than gasoline.

A by-product of petroleum refining and gas processing, LPG is useful in a wide range of domestic and commercial settings. It serves the fast-growing auto gas market. It is in demand as a petrochemical feedstock. In non-industrialized economies it is a popular heating fuel and used for off-grid refrigeration. Generators use LPG in combined heat and power (CHP) plants to make low emission electricity.

LPG currently meets around 3% of global energy needs. Much of that is sourced domestically, but there is also a growing export market. International trade in LPG is expected to grow exponentially over the longer term, as more is extracted from the huge shale gas deposits in the US and elsewhere.

Liquefied Petroleum Gas (LPG) is essentially a petroleum gas that has been converted to a liquid by application of pressure. LPG consists of Propane, butane or a mixture of these, depending on the application and or climate.

LPG occurs naturally in crude oil and natural gas production fields and is also produced in the oil refining process. LPG is prepared by refining petroleum or "wet" natural gas, and is almost entirely derived from fossil fuel sources, being manufactured during the refining of petroleum (crude oil), or extracted from petroleum or natural gas streams as they emerge from the ground. It was first produced in 1910 by Dr. Walter Snelling, and the first commercial products appeared in 1912. It currently provides about 3% of all energy consumed, and burns relatively cleanly with no soot and very few sulfur emissions. As it is a gas, it does not pose ground or water pollution hazards, but it can cause air pollution. LPG has a typical specific calorific value of 46.1 MJ/kg compared with 42.5 MJ/kg for fuel oil and 43.5 MJ/kg for premium grade petrol (gasoline).[6] However, its energy density per volume unit of 26 MJ/L is lower than either that of petrol or fuel oil, as its liquid density is lower (about 0.5—0.58, compared to 0.71—0.77 for gasoline).


Liquefied Petroleum Gas (LPG) vapor is invisible and has no natural odor, so a stenching agent or unique smell is added to the product to enable any leaks to be detected. The gas burns in a narrow range between two percent and ten percent – these are called flammable limits. LPG vapor is heavier than air. Any leak will fall to the ground and seek out drains.


As Liquefied Petroleum Gas (LPG) has a high energy value, around 45 megajoules per kilogram, it burns with a hot flame (around 20000C), making it a good fuel for cooking applications, it is fantastic in the Asian market where it is frequently used when cooking with works. The research octane number of propane is over 100 making it a very useful and economical automotive fuel

LPG contains little of the contaminants that are found in the more traditional liquid fuel. Sulphur, vanadium and sodium are virtually non-existant making LPG a very clean burning fuel. This allows LPG to be used in direct firing applications such as in the baking and ceramics industries.