Bio fuels types of biofuels

BIO FUELS
Biofuels may be derived from agricultural crops, including conventional
food plants or from special energy crops. Biofuels may also be derived
from forestry, agricultural or fishery products or municipal wastes, as
well as from agro-industry, food industry and food service by-products
and wastes.
Bioenergy is energy derived from biofuels. Biofuels are fuels produced
directly or indirectly from organic material – biomass – including plant
materials and animal waste.
A distinction is made between primary and secondary biofuels. In the
case of primary biofuels, such as fuelwood wood chips and pellets,
organic materials are used in an unprocessed form, primarily for heating,
cooking or electricity production.
Secondary biofuels
result from processing of biomass and include liquid biofuels such as
ethanol and biodiesels that can be used in vehicles and industrial
processes.
Bioenergy is mainly used in homes (80%), to a lesser extent in industry
(18%), while liquid biofuels for transport still play a limited role (2%).
The most widely used liquid biofuels for transport are...