Life Cycle Assessment of Bio-Jet Fuel

The investigation of environmentally friendly substitutes for conventional jet fuels has been motivated by the aviation industry’s negative environmental effects, particularly those caused by greenhouse gas emissions. As a potential answer, bio-jet fuels (BJFs) made from sustainable feedstocks have gained popularity. In order to compare the environmental performance of bio-jet fuel to that of traditional fossil-based jet fuel, this study does a thorough life cycle assessment (LCA). The LCA framework takes into account every stage of the manufacture of bio-jet fuel, from feedstock cultivation through final application in aircraft engines. To estimate the environmental impacts throughout multiple life cycle stages, data from numerous sources are combined, including literature, industry reports, and databases. The possibility for global warming, energy use, water use, eutrophication, and land use change are among the environmental factors evaluated. The LCA’s first findings show that producing bio-jet fuel typically results in fewer net carbon dioxide emissions than producing conventional jet fuel. The production of biofuel feedstocks and their processing has an impact on things like land use change and agricultural inputs. However, the ability of feedstock crops to store carbon and the adoption of more environmentally friendly agricultural methods frequently mitigate these effects. A lower overall energy consumption during the life cycle of bio-jet fuel is also a result of the reduced reliance on fossil fuels. Water utilization is a crucial factor to take into account, with some biofuel manufacturing methods using more water than traditional jet fuel refining. The study assesses methods to improve the overall sustainability of the manufacturing of bio-jet fuel and lessen its effects on the environment. This LCA seeks to provide light on the environmental trade-offs related to the adoption of bio-jet fuel through a comparative examination of several bio-jet fuel production pathways and feedstock sources. The findings will help stakeholders in the aviation industry make well-informed judgments about the viability and sustainability of integrating bio-jet fuels. Life cycle assessment carried out in this chapter emphasizes the potential of bio-jet fuel to lessen the environmental impact of the aviation sector. The practicality of bio-jet fuels as a crucial part of a more sustainable aviation future is anticipated to be further enhanced by continuous research and technology improvements, even though challenges regarding feedstock farming practices and water utilization still exist.