What Is Propane Gas?

Liquefied petroleum gas (commonly called LPG or LP-gas) is a mixture of several hydrocarbon gases. Propane and butane, used separately or in mixtures, are the principal LP-gases. They are either extracted from natural gas or produced as a result of processing crude oil at refineries.gas man

Propane is the LP-gas most widely used in the U.S. At normal temperatures and atmospheric pressure, it exists as a vapor. Producers convert propane to a liquid by a combination of moderate pressure and cooling. This greatly reduces space requirements, since approximately 270 gallons of propane vapor can be converted to one gallon of liquid. Moderate pressure holds the propane in liquid form until needed. A specially designed pressure vessel is necessary to maintain this pressure.

LP-gas has been a common fuel in homes and businesses since the early 1920's. Engine fuel use of propane dates back to the 1930's.

Characteristics of Propane

Propane has a number of unique characteristics which increase its usefulness and value as an energy source. At the same time, these characteristics require that you respect the product to assure your safety.

 

  1. Propane can be liquefied at ordinary temperatures with moderate pressures.
  2. As a liquid, propane is easily transported and stored.
  3. Propane burns cleanly and has a high heat value.
  4. Propane is not poisonous.
  5. Propane is colorless and odorless in its natural state. A foul smelling odorant is added to help detect leaks.
  6. Propane liquid is extremely volatile and will vaporize quickly if spilled.
  7. Propane vapor is heavier than air and can accumulate in low spots.
  8. Propane vapor will diffuse very slowly into the atmosphere unless assisted by strong wind currents.
  9. Propane vapor leaking into the atmosphere cannot always be detected by the eye.
  10. One gallon of propane liquid will produce about 270 gallons of propane vapor in the air.
  11. One gallon of propane liquid will produce about 10,000 gallons or 1,300 cubic feet of a combustible propane-air mixture in the atmosphere.
COAST GAS HOME PAGE