6.2. General background to biodiesel

6.2.1. Biodiesel as an alternative fuel

The urge to find sustainable replacements for transport fuel has led to a drive to find renewable, nontoxic, and carbon-neutral biofuels. Biodiesel is a fuel composed of mono-alkyl ester derived from vegetables oil or fats oil, which is proven to contribute to reductions in the world's dependence on fossil oils (Murugesan et al., 2009). The most significant advantages of biodiesel usage over fossil fuel are:
1. Biodiesel can be produced from plant, algae, or waste oil, including sunflower, soybean, palm, and canola oil, among others. This factor contributes to the reduction of greenhouse gas (GHG) emission simultaneously (Lin et al., 2011). Care must be taken, however, ...

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