Question

Why is biogas called an excellent fuel.

Answer 1

Biogas is a well-established fuel for cooking and lighting in a number of countries. This is known as an excellent fuel because it is a mixture of about 50-70% methane and 25-45% $C{0}_2$ and traces of other gases. The gas is created from anaerobically decaying organic mater, such as manure and plant material. The efficiency of fuel as well as the cost-effectiveness along with the ease of production which includes easy availability of raw materials and eco-friendliness makes biogas a better permissible fuel. Biogas production also helps in the easy disposal of organic wastes and is eco-friendly because combustion of biogas does not cause much pollution. It has high calorific value and is a non-polluting renewable source of energy.