Circular Bioeconomy Approaches for Valorizing Waste Streams into Bio-jet Fuel

As the aviation sector is experiencing phenomenal growth, the substantial demand for aviation fuel is also increasing. Synthesis of sustainable aviation fuel would help curb this enhanced demand while reducing greenhouse gas (GHGs) emissions. In this regard, bio-jet fuels have shown promising potential as they are renewable, release less CO2 on combustion, highly compatible with aviation engines, and can be used without any modifications. Several researchers have exploited sustainable waste sources for bio-jet fuel synthesis by various conversion technologies, which utilize the principles of circular bioeconomy. This book chapter particulars on the aspects of circular bioeconomy along with the conversion technologies, advantages, and disadvantages of bio-jet fuel. Additionally, circular economy-based production of bio-jet fuel from various waste streams, as demonstrated by researchers are thoroughly reviewed. The various challenges to bio-jet fuel production and their possible solutions are assessed to facilitate the suitable implementation of a circular bioeconomy.