Answer:
Biodiesel can be defined as an alternative fuel that is obtained from animal fats, vegetable oils, whether unused or burned. It is done by a chemical reaction called transesterification or another process called esterification. The final product is mixed with alcohol (usually methanol) and can be used in vehicles, either in certain diesel-biodiesel ratios or some engine modifications if it is desired to use alone.
Step-by-step explanation:
Biodiesel is an important source of alternative energy, since it is a renewable fuel that can be obtained from a wide variety of vegetable and animal fats. It is less harmful to the environment by not generating the same levels of toxic gases that cause the greenhouse effect. On the other hand, glycerin, as a obtained by-product, can be used in applications such as detergents, food additives, cosmetic products, lubricants, etc. Characterizing animal fat may require a high degree of transesterification, producing a high quality biodiesel, which is currently used to recover the organic waste produced by the livestock industry.