User:Milton Beychok/Sandbox
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Similar substances
Liquefied petroleum gas or LPG is a somewhat similar substance consisting of either propane or butane or mixtures of propane and butane with possibly some traces of propylene and butylenes. Those gaseous compounds are usually by-products recovered in petroleum refineries and easily liquified at a temperature of about 20 °C and pressures ranging from 2 atmospheres (for pure propane) to 8 atmospheres (for pure butane).
LPG is also referred to as LP gas or, in some countries, as autogas. It is widely sold in small pressure vessels such as shown in Fig.2 and it is used for:
- residential heating in rural areas where natural gas is not available
- fuel for barbecue grills
- fuel for automobiles designed to use LPG