Biodiesel can be defined in simple words as the diesel oil which is naturally prepared from vegetable oils and animal fats. In addition it also consists of long-chain alkyl esters. They are mainly produced by alcoholysis or trans-esterification process wherein animal fats or vegetable oils are chemically reacted with small-chain aliphatic alcohols. Both the above mentioned techniques will involve feedstock treatment wherein waste vegetable oil or animal fats are filtered to remove the waste material from them. Biodiesel is mostly manufactured for fueling standard diesel engines. They can used either in its pure form or blended with various chemical concentrations as per the requirements of specific applications. The properties of biodiesel is quite different from that of standard diesel oils. It does not contain sulphur or any other chemical pollutants. Due to this reason it does not produce any harmful poisnous gases during combustion. At the same time it may be observed that normal petrol and diesel oils produce large amount of harmful poisnous gases like carbon-dioxide during combustion.

Reduce pollution with biodiesel

Thus biodiesel will greatly help to reduce the environment pollution caused due to poisnous gases. Many experts have predicted that biodiesel will be used as the main fuel for powering domestic vehicles in the near future. It is biologically degradable which will readily reduce contamination of soil. Again this will help to reduce the soil pollution. An important advantage to be mentioned about biodiesel is that it produces 80% less carbon-dioxide as compared to normal diesel fuels. The efficiency of engines can be readily increased with the help of biodiesel as it has better lubricity and cetane rating as compared to standard fuels. Nowadays most of the Green vehicles or environmentally friendly vehicles are powered using biodiesel.

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