Gas Engine - Use of Methane or Propane Gases

Use of Methane or Propane Gases

Since natural gas (methane) has long been a clean, economical, and readily available fuel, many industrial engines are either designed or modified to use gas, as distinguished from gasoline. Although the carbon emission footprint does not differ significantly, their operation produces less complex-hydrocarbon pollution, and the engines have fewer internal problems. One example is the liquefied petroleum gas (propane) engine used in vast numbers of forklift trucks. Common usage of "gas" to mean "gasoline" requires the explicit identification of a natural gas engine. (There is also such a thing as "natural gasoline", but this term is very rarely observed outside the refining industry.)