Renewable Residues as Feedstock for Drop-in Biofuel Production

There is a growing interest in promoting the use of residues as a bioenergy feedstock to produce drop-in biofuels. This approach is considered a promising and sustainable solution to replace conventional fossil fuels. Renewable residues offer a renewable source of carbon that addresses energy, economic, and environmental requirements. This chapter examines various types of renewable residues, categorizing them based on their state and origin, and highlights their potential as valuable raw materials for drop-in biofuel production. Biochemical methods used to convert these renewable residues into drop-in biofuels, as well as their pretreatment techniques are analyzed. It also discusses the associated advantages of producing these advanced biofuels from renewable residues, such as decreasing dependence on fossil fuels within the context of reducing greenhouse gas emissions and promoting a circular and sustainable economy. However, the chapter also emphasizes the limitations and challenges that need to be addressed, including appropriate raw material selection, residue availability, and process optimization. Furthermore, it mentions leading companies involved in the production of drop-in biofuels using renewable residues, as they are driving innovation and developing advanced technologies in this field. In summary, this chapter offers a comprehensive overview of drop-in biofuel production from renewable residues. It underscores the significance of this approach as a sustainable and promising alternative for the fuel industry while also highlighting potential areas for future research.