Biodiesel

Biodiesel is diesel fuel combined with a certain percentage of vegetable oil. B5 refers to a blend of diesel with 5% vegetable oil. Many diesel engines can run on blends up to B20 without modifications.

A biofuel produced through transesterification, a process in which organically-derived oils are combined with alcohol (ethanol or methanol) in the presence of a catalyst to form ethyl or methyl ester. The biomass-derived ethyl or methyl esters can be blended with conventional diesel fuel or used as a neat fuel (100% biodiesel). Biodiesel can be made from soybean or rapeseed oils, animal fats, waste vegetable oils or microalgae oils.

A biodegradable transportation fuel for use in diesel engines. Biodiesel is produced through the transesterification of organically-derived oils or fats. It may be used either as a replacement for or as a component of diesel fuel.