Biofuel is a fuel that is derived from biological materials, such as plants and animals. Biofuel can also be derived from agricultural, commercial, domestic and/or industrial organic wastes.
Common types of liquid biofuels in use today are bio-ethanol and biodiesel. Bio- ethanol is usually obtained from the conversion of carbon-based feedstock. Ethanol can be produced from a variety of feedstocks such as sugar cane, sugar beet, grain, hemp, potatoes, cassava, fruit, corn, wheat, straw etc., as well as many types of cellulose waste and harvesting.
Biofuel can also be in solid form, e.g. wood pellets. Pellets are produced from biomass, raw materials (soft organic materials) like groundnut shell, sawdust, wheat straw, palm husk, rise husks etc. and many other agriculture and forestry wastes. Pellets are highly compressed biomass that may have very high burning value, and is easily transported and handled. It can also easily be used for automatic feeding.
Benefits liquid fuel:
Benefits solid fuel: