Slides in this set
Biofuels are fuels made from plant material and recycled
elements of the food chain.
·These fuels are generally in the form of alcohols,
esters, ethers, and other chemicals produced from
The principle fuel used as a petrol substitute for road transport vehicles is
bioethanol. Bioethanol fuel is mainly produced by the sugar fermentation
process, although it can also be manufactured by the chemical process of
reacting ethylene with steam.
·The main sources of sugar required to produce ethanol come from fuel or
energy crops. These crops are grown specifically for energy use and
include corn, maize and wheat crops.
·Ethanol or ethyl alcohol (C2H5OH) is a clear colourless liquid, it is
biodegradable, low in toxicity and causes little environmental pollution if
spilt. Ethanol burns to produce carbon dioxide and water.…read more
Biodiesel is an alternative fuel similar to conventional or `fossil' diesel.
Biodiesel can be produced from straight vegetable oil, animal oil/fats,
tallow and waste cooking oil. The process used to convert these oils to
Biodiesel is called transesterification.…read more