Leonard Uchejim Okonye is currently a research fellow at the Institute of Applied Materials, Department of Chemical Engineering Science, University of Pretoria, South Africa. His research interests are in energy sustainability and renewability, the development of catalysts and efficient processes for reduced CO2 emissions in clean energy conversion technologies, CO2 utilization, and sustainable green processing of materials for energy systems, energy conversion and management.Chike George Okoye-Chine is a Chemical Process Engineer at the Global R&D of Avery Dennison Corporation in United States. He obtained his PhD from the University of South Africa, MSc in Chemical Engineering from the University of Lagos, Nigeria, and BEng (Hons) in Chemical Engineering from Nnamdi Azikiwe University, Nigeria. His research interests include heterogeneous catalysis, gas-to-liquid fuel, coal-to-liquid fuel, biomass-to-liquid fuel, waste-to-liquid fuel, and CO2 utilization.Kabir Opeyemi Otun is a Research Fellow at the Chemistry Department, University of South Africa (UNISA). Prior to this, he was a Postdoctoral Fellow at the Institute of Applied Materials, University of Pretoria and a Lecturer in the Department of Chemistry, Kwara State University. He received his PhD in Chemistry from UNISA. His research focus is on novel materials for sustainable energy applications.Prof. Jianwei Ren is a Full Professor in the Department of Chemical Engineering at the University of Pretoria, South Africa, and serves as Deputy Director of the Institute of Applied Materials (IAM). His research interests include materials science, hydrogen and fuel cell technologies, atomic layer deposition (ALD), advanced manufacturing, and sustainable engineering solutions.

• Sustainable Aviation Fuel (SAF): Introduction and the Need for SAFHistorical Perspective: Evolution of Sustainable Aviation Fuel ProductionFeedstock Selection and Supply Chain for Sustainable Aviation Fuel (SAF)SAF Production ProcessesBiomass-to-liquid (BTL) Processes for SAF ProductionWaste-to-energy Conversion Technologies for SAF ProductionAlgae-based Sustainable Aviation Fuel: Cultivation and ConversionHydrothermal Liquefaction: A Promising Pathway for Sustainable Aviation Fuel (SAF)Electrochemical Processes for SAF SynthesisBiorefinery Approaches for Sustainable Aviation Fuel ProductionSyngas-based Pathways for SAF: Fischer–Tropsch SynthesisSustainable Feedstock Supply Chains for SAF ProductionLife Cycle Assessment (LCA) of Sustainable Aviation FuelTechno-economic Analysis of Sustainable Aviation Fuel ProductionEnvironmental Impacts and Emissions Reduction Potential of SAFPolicy and Regulatory Landscape for Sustainable Aviation Fuel: Challenges and OpportunitiesMarket Perspectives and Commercialization Strategies for Sustainable Aviation Fuel (SAF)Advances in SAF Blending and Compatibility with Existing Aircraft EnginesFuture Prospects: Innovations and Emerging Technologies in SAF Production