Liquid Biofuels: Ethanol and Biodiesel
Liquid biofuels are transportation fuels including such fuels as ethanol, biodiesel, renewable diesel, and sustainable aviation fuels. The federal government promotes biofuels as transportation fuels to help reduce oil imports and CO2 emissions. In 2007, the U.S. government set a target to use 36 billion gallons of biofuels by 2022. As a result, nearly all…