Sustainable aviation fuel production and aviation sector

Sustainable aviation fuels (SAF) present a feasible solution to decarbonize modern aviation. In contrast to traditional jet fuels, SAFs are produced in a variety of ways, thereby making the choice of one of these processes a complicated Multi-Criteria Decision challenge that involves conflicting priorities. This study evaluates SAF production processes using a multicriteria methodology, PROMETHEE-2. Due to the initial phase of SAF technology advancement and the lack of data on these, several stakeholders in the aviation sector were enlisted to assist in the collection of data and preferences. The suggested framework's strength lies in its adaptability to suit the subjective opinions of diverse stakeholders, selection of ranking system, and robustness of outcomes. This research utilizes a set of stakeholders in a participative manner to rank 11 (A1 to A11) SAF production paths based on 24 parameters categorized into social, environmental, economic, and technological evaluation criteria. Industry professionals were given a form to rate SAF production methods according to a performance criterion. Data is validated using fuzzy TOPSIS and fuzzy VIKOR and PROMETHEE to reduce professionals' judgmental personal prejudice. The study shows that the optimal feedstock for SAF production is the direct transition process of CO2 to SAF (A11) in the gasification or Fischer-T synthesis group. Keywords: Aviation, Green fuel, Sustainable Aviation Fuel, PROMETHEE-