Exergy-based improvements and waste exergy emissions in sustainable aviation fuels: a pathway to enhanced energy efficiency and environmental sustainability

The aviation sector will struggle to attain net-zero emissions by 2050. Sustainable aviation fuels (SAF) research is noted. We evaluated the technical performance of SAF production in a Brazilian first- and second-generation integrated sugarcane biorefinery. CO2 equivalent and renewability exergy indices assessed supply chain sustainability. One study looked at getting public transport to release less carbon dioxide. These studies examine how some of the world's biggest energy-hungry companies and industries can release less CO2. In a multi-criteria approach, we evaluated biorefinery route performance using ηB and AUEC as supplementary indicators. By 2020, São Paulo and Rio de Janeiro international airports in Brazil may fulfil 10% of fuel demand, according to this estimate. Jet fuel capacity begins at 210 kt/year. For biochemistry, process design employs sugarcane bagasse and straw. The environmental analysis proposes lowering greenhouse gas emissions by 30% compared to fossil-based aircraft fuel in all scenarios.