Although tied to the production of natural gas and crude oil, LPG has its own distinct advantages and can perform nearly every fuel function of the primary fuels from which it is derived. The fact that it can be easily liquefied makes LPG a highly versatile energy alternative with numerous fuelling applications.
Two origins. LPG has two origins: it can be recovered during the extraction of natural gas and oil from the earth, and it can be produced during the refining of crude oil. In South Africa, LPG is produced almost entirely as a by-product of the oil-refining process.
LPG is typically either propane, butane, or a mixture of the two, and is a naturally occurring by-product of industrial processes. Natural gas is primarily methane and is extracted directly from reservoirs underground.
LPG is pressurised into a liquid and stored in cylinders, whereas natural gas is generally piped.
Although they are both used for cooking and heating, they have different chemical compositions.
LPG has a higher energy content than natural gas, so you need less LPG (but more pressure) to generate the same amount of heat. LPG is also denser than natural gas, so it will settle close to the ground, while natural gas rises.
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