About 60% of the world supply of LPG comes from the separation of natural gas products, and 40% is a by-product from the refining of crude oil. In the past, LPG has been considered as waste and flared off; now it is recognised as a major energy source. It is produced in vast quantities (the UK produced 6.8 million tonnes in 2003) and exported over 3 million tonnes. It is particularly abundant in the North Sea’s ‘wet’ crude oil and offers security of fuel supply for many years. |