Fuels
Oxy-fuel processes may use a variety of fuel gases, the most common being acetylene. Other gases that may be used are propylene, liquified petroleum gas (LPG), propane, natural gas, hydrogen, and MAPP gas. Many brands use different kinds of gases in their mixes.
Note: there is not a single gas called "oxyacetylene".
Read more about this topic: Oxy-fuel Welding And Cutting