Liquid Petroleum Gas (LPG)
Asia-Pacific Economic Cooperation (APEC)

European Commission - Eurostat
LPG are light paraffinic hydrocarbons derived from the refinery processes, crude oil stabilisation and natural gas processing plants. They consist mainly of propane (C3H8) and butane (C4Hl0) or a combination of the two.

They could also include propylene, butylene, isobutene and isobutylene. LPG are normally liquefied under pressure for transportation and storage.

International Energy Agency (IEA)
LPG are light paraffinic hydrocarbons derived from the refinery processes, crude oil stabilisation and natural gas processing plants. They consist mainly of propane (C3H8) and butane (C4Hl0) or a combination of the two.

They could also include propylene, butylene, isobutene and isobutylene. LPG are normally liquefied under pressure for transportation and storage.

International Energy Forum Secretariat (IEFS)
Liquefied Petroleum Gas (LPG) is the generic name for commercial propane and commercial butane. It can be produced from natural gas processing plants or from refineries.

LPG occurs naturally as gas at atmospheric pressure. It has the special property of becoming liquid at atmospheric temperature if moderately compressed and can easily be converted from liquid into gas by being released to atmospheric pressure. In order to facilitate transport and storage, LPG is usually bottled in liquid state (about 250 times more dense than in its gaseous form), propane however can also be supplied in bulk for storage tanks at consumersí premises.

LPG is used domestically, mainly for heating and cooking purposes and industrially, for example as feedstock by the Petrochemical industry. It is also increasingly used in the transport sector as vehicle fuel, because of its cleaner burning properties and often lower end-use price.

Latin American Energy Organization (OLADE)
This consists of a combination of light hydrocarbons that are obtained from distilling oil and/or treating natural gas.

They can be of three types:
a) Combination of hydrocarbons from the C3 group (propane, propene, propylene)
b) Combination of hydrocarbons from the C4 group (butane, butene, butylene)
c) Combination of C3 and C4 in any proportions

United Nations Economic Commission for Europe (UNECE)
LPG are light paraffinic hydrocarbons derived from the refinery processes, crude oil stabilisation and natural gas processing plants. They consist mainly of propane (C3H8) and butane (C4Hl0) or a combination of the two.

They could also include propylene, butylene, isobutene and isobutylene. LPG are normally liquefied under pressure for transportation and storage.

UNSD Energy Statistics Section
Hydrocarbons which are gaseous under conditions of normal temperature and pressure but are liquefied by compression or cooling to facilitate storage, handling and transportation.

They are

(i) extracted by stripping of natural gas at crude petroleum and natural gas sources;

(ii) extracted by stripping of imported natural gas in installations of the importing country; and

(iii) produced both in refineries and outside of refineries in the course of processing crude petroleum or its derivatives.

It comprises propane (C3H8), butane (C4H10), or a combination of the two. Also included is ethane (C2H6) from petroleum refineries or natural gas producersí separation and stabilization plants.