Advantages of Biodiesel:
a>An alternative fuel to petro-diesel
Blends of 20% biodiesel with 80% petroleum diesel can be used in unmodified diesel engines. Biodiesel can be used in its pure form but many require certain engine modifications to avoid main tenance and performance problems.
b>A renewable energy source
It was stated that about half of the biodiesel industry can use recycled oil or fat, the other half being soybean, or rapeseed oil according to the origin of these feed stocks.
c>Environmental friendly
Biodiesel is nontoxic, biodegradable. It reduces the emission of Harmful pollutants (mainly particulates) from diesel engines (80% less CO2 emissions, 100% less sulfur dioxide) but emissions of nitrogen oxides (precursor of ozone) are increased.
d>Good lubricity
Biodiesel has a high cetane number (above 100, compared to only 40 for diesel fuel). Cetane number is a measure of a fuel's ignition quality. The high cetane numbers of biodiesel contribute to easy cold starting and low idle noise.
e>Good combustibility
The use of biodiesel can extend the life of diesel engines because it is more lubricating and, furthermore, power output are relatively unaffected by biodiesel.
f>Good compatibility
Biodiesel replaces the exhaust odor of petroleum diesel with a more pleasant smell of popcorn or French fries.
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