Many vehicles run on diesel fuel, but with the growing push
toward environmentally safer fuels for vehicles, do diesel
vehicle owners have any alternative other than diesel
fuel? Yes they do! It’s called bio-diesel and it’s
making a big splash in the fuel industry.
Bio-diesel is the name of a clean burning alternative fuel,
produced from domestic, renewable resources. Bio-diesel
contains no petroleum, but it can be blended at any level with
petroleum diesel to create a bio-diesel blend. It can be used
in compression-ignition (diesel) engines with little or no
modifications. Bio-diesel is simple to use, biodegradable,
nontoxic, and essentially free of sulfur and aromatics.
Bio-diesel fuel is produced from any fat or oil such as
soybean oil as an alternative to petroleum-based fuel, through
a refinery process called trans-esterification. This process is
a reaction of the oil with an alcohol to remove the glycerin,
which is a by-product of biodiesel production.
Fuel-grade bio-diesel as an alternative fuel must be
produced to strict industry specifications in order to insure
proper performance. Bio-diesel is the only alternative fuel to
have fully completed the health effects testing requirements of
the 1990 Clean Air Act Amendments.
Bio-diesel fuel that meets the industry specifications for
an alternative fuel is legally registered with the
Environmental Protection Agency as a legal motor fuel for sale
and distribution. Raw vegetable oil cannot meet bio-diesel fuel
specifications, it is not registered with the EPA, and it is
not a legal motor fuel.
Bio-diesel is the only alternative fuel to have fully completed
the health effects testing requirements of the Clean Air Act.
The use of bio-diesel in a conventional diesel engine results
in substantial reduction of unburned hydrocarbons, carbon
monoxide, and particulate matter compared to emissions from
diesel fuel. In addition, the exhaust emissions of sulfur
oxides and sulfates (major components of acid rain) from
bio-diesel are essentially eliminated compared to regular
diesel fuel.
Of the major exhaust pollutants, both unburned hydrocarbons and
nitrogen oxides are ozone or smog forming precursors. The use
of bio-diesel as an alternative fuel results in a substantial
reduction of unburned hydrocarbons. Emissions of nitrogen
oxides are either slightly reduced or slightly increased
depending on the duty cycle of the engine and testing methods
used.
The use of bio-diesel fuel as an alternative to petroleum based
fuel is really a step in the right direction when it comes to
both environmental as well as monetary concerns. It is
safer, burns cleaner, and easy to make. It’s a real
breakthrough for those who use diesel fuel and a real
alternative to regular diesel fuel.
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