11.6.5 Liquid Biofuels

11.6.5 Liquid Biofuels

Liquid biofuels are derived from biomass crops or by-products that are suitable for use in vehicle engines or heating systems.  Biofuels can be considered as potential replacements or extenders for mineral fuels such as diesel or petrol. They can be sub-divided into a number of categories, the principal two being:

1. Vegetable oils/animal fats which can be used in unprocessed form or converted to biodiesel;

Bio-ethanol produced from the fermentation of organic materials such as sugar beet, cereals, etc