fuels and crude oil

• Fuels undergo combustion
• Fuels can be renewable

  Eg (biofuel --> bioethanol)

  bioethanol is made from Sugercane and it is more environmentally sustainable.
• Fuels can be non renewable as well .

  Eg (fossil fuels and crude oil)

  They contain

  • Hydrocarbons .

  Eg ( natural gas --> made up of methane)

  Eh (crude oil --> separate by fractional distillation)
• Fractional distillation