What are biofuels?
Liquid transportation fuels made from
plants & other forms of biomass.
Ethanol-a gasoline type fuel made by
fermenting sugars into alcohol.
Biodiesel-a diesel type fuel made by
separating glycerin from animal & vegetable
oil to create methyl esters.
What materials can be
used to make biofuels?
Sugar cane Canola oil
Corn Jatropha nut oil
Sweet sorghum Trees
Soybean oil Grass
Coconut oil Agricultural residue
Palm oil Municipal solid
Recent research is making this process less expensive & more energy
Ethanol or Gasoline?
Pictorial by Graydon Blair of the Utah Biodiesel Cooperative
After Glycerin removal, biodiesel now just needs to be
cleaned/purified before use:
Where are biofuels made?
Uses sugar cane to make ethanol
Midwestern United States
Uses corn to produce ¼ of the globe’s
3rd largest supplier of ethanol in the world.
Are biofuels good for the
Biofuels are cleaner burning & reduce
emissions of particulate matter.
Biofuels are biodegradable.
Biofuels are nontoxic.
Burning fossil fuels increases atmospheric levels of
Fossil fuels are a Biodiesel’s Closed
finite resource Carbon Cycle
Graph taken from USF Oceanography webpage
Share of energy consumed
by major sectors of the
Are special cars required
to use biofuels?
Cars, trucks, & farm equipment can all
run on low-volume biofuel blends without
Flexible Fuel Vehicles (FFV) operate on
any combination of ethanol & gasoline.
FFV’s are being sold in the U.S., Brazil, &
Benefits of biofuels
Reduce yearly operation costs.
Reduce the need for petroleum
Reduce greenhouse gas emissions
The crops that are used are all