Biodiesel
Biodiesel is the common name for a variety of ester-based oxygenated
fuels made from vegetable oils or animal fats. The concept of using
these oils as a fuel dates back to when Dr. Rudolf Diesel developed
the first diesel engine to run on vegetable oil in 1895.
Today’s diesel engines require a clean-burning, stable fuel that performs
well under a variety of operating conditions. Biodiesel is the only
alternative fuel that can be used directly in any existing, unmodified
diesel engine. Because it has similar properties to petroleum diesel
fuel, biodiesel can be blended in any ratio with petroleum diesel
fuel. Many US federal and state fleet vehicles, along with an increasing
amount of large corporations, are already using biodiesel blends in
their existing diesel engines.
The low emissions and decreased environmental
risk factors of biodiesel make it an ideal
fuel for use in marine areas, national
parks, forests, and heavily polluted cities.
Biodiesel has many advantages as a transport
fuel, both economically and environmentally.
For example, biodiesel can be produced
from domestically grown oilseed plants
such as canola. Producing biodiesel from
domestic crops reduces Australia's
dependence on foreign petroleum, increases
agricultural revenue, and creates jobs.