LPG stands for “Liquefied Petroleum Gas” and the term is used to describe two prominent members of a family of light hydrocarbons called “Natural Gas Liquids” (NGLs): propane (C3H8) and butane (C4H10), or a mix of the two. Propane and butane are chemically quite similar but the small dierences in their properties mean that they are particularly suited to specific uses. Often, propane and butane will be mixed to get the best energy yields and properties. Liquefied Petroleum Gas (LPG) is a portable, clean and ecient energy source which is readily available to consumers around the world. LPG is primarily obtained from natural gas and oil production but is also produced increasingly from renewable sources; its unique properties make it a versatile energy source which can be used in more than 1,000 dierent applications. In its liquid form, LPG looks like water. Yet, because of its unique properties, one litre of liquid LPG expands to 270 litres of gaseous energy allowing a lot of energy to be transported in a compact container. LPG is colourless and odourless and a strong “stenching” agent is added so that even a very small leak can be easily detected. At a normal temperature, LPG is a gas. When subjected to modest pressure or cooling, it transforms into a liquid. As a liquid, it is easy to transport and store. Once it has been cooled or pressurised, LPG is usually stored in containers made of either steel or aluminium. The term “liquefied gas” may seem a contradiction in terms since all things in nature are either a liquid or a solid or a gas. Yet, liquidity is the unique character of LPG that makes it such a popular and widely used fuel. At normal temperature and pressure, LPG is gaseous. It changes to a liquid when subjected to modest pressure or cooling. In liquid form, the tank pressure is about twice the pressure in a normal truck tyre, which means it is very safe when properly handled. For the purpose of the trading transactions and contract documentation “LPG” shall mean Liquified Petroleum Gas, a composite mixture of mainly & substantially Propane liquified gases & Butane liquified gases along with some other gases & impurities within tolerance limits within the range specified with the Specifications.

Visit the websites for:
World LPG Association WLPGA
on LPG Wikipedia
Energypedia
Search www.google.com

Hundreds of millions of people currently use LPG and depend on it for thousands of applications, in commercial business, industry, transportation, farming, power generation, cooking, heating and for recreational purposes. LPG commonly is used as fuel for gas barbecue grills and gas cooktops and ovens, for gas fireplaces, and in portable heaters. In Dubai for example LPG is the “Cooking gas” in the majority of Homes both i.e. in villas and High Rise apartment buildings.
In Europe, LPG water heaters are common. It is also used as an engine fuel and for backup generators. Unlike diesel, LPG can be stored nearly indefinitely without degradation. In developing Countries, like Pakistan, where there is no piped natural gas, LPG is mainly “Poor man’s fuel” mainly used for heating and cooking for domestic and residential use. Where there availability is piped natural gas, LPG is an “alternative fuel” where piped natural gas is not available in quantities to meet demand for residential, autogas, commercial & industrial applications.

LPG has several industrial and commercial applications. Most industries use LPG gas because it is clean, safe, and ecient. It has a higher energy content than most of the other fuels. Here are the few industrial uses of LPG gas we’ll look at today. The four primary industrial uses of LPG.
1. Galvanising
2. Metal Melting
3. Heat Treatment
4. Steam Generation
5. Aerosol Propellent
6. Refrigeration