Biodiesel is a renewable biofuel derived from biological sources such as vegetable oils, animal fats, or recycled greases. It consists of long-chain fatty acid esters and serves as a cleaner-burning alternative to petroleum-based diesel fuel. Here are some key points about biodiesel:
Production: Biodiesel is typically made by combining alcohol (usually methanol) with vegetable oil, animal fat, or recycled cooking grease. The process involves transesterification, which reduces viscosity and improves combustion properties.
Properties:
Biodiesel has physical properties similar to petroleum diesel.
It is nontoxic, biodegradable, and safe for use.
Its calorific value is approximately 9% lower than standard diesel, affecting fuel efficiency.
Biodiesel has a higher boiling point and flash point than petrodiesel.
Applications:
Biodiesel is primarily used in transport, but it can also be experimented with in railway locomotives and power generators.
Most engines require blending biodiesel with petrodiesel (usually less than 10%) due to compatibility and modification constraints.
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