Corrosion of Metals in Biofuels

Global annual production of bioethanol exceeds 36,500 million liters and that of biodiesel exceeds 3,524 million liters. During production, transportation and usage, biofuels come in contact with various materials (metals and non-metals). Therefore it is important to understand the influence of biofuels on materials as well as the influence of materials on biofuels. This paper summarizes our current understanding of the corrosion of metals in biofuels. The sources of biofuels have been reviewed. Different types of corrosion experienced in biofuels have been discussed. Techniques to investigate the corrosivity of biofuels have been analyzed. Future developments in this field have been highlighted.