LPG is'''

1
LPG is...

• A mixture of propane (C3H8) and butane (C4H10),
  stored as a liquid.
• A liquid at much lower pressures than unprocessed
  natural gas, and is therefore easier and safer to
  store and transport.
• stored well for its efficient distribution.
• Is liquefied for transport and then vapourized
  for use as a heating or engine fuel or as a
  starting material in chemical industries.

2
LPG is...

• Successful as a fuel, 350,000 vehicles on the
  road in the USA.
• Good for engines, has been around since the
  1920s and is clean burning.
• Many places offer LPG engine conversions.
• Nearly non-polluting (mainly carbon dioxide, and
  less of that per-mile) and cheap.

3
ENERGY?

• LPG has an energy density of 25.3MJ/litre