Published
2026-04-24
Conference Proceedings Volume
Section
Climate change, sustainability, and impact on ecosystems (food, health, waste, transport, tourism, and culture)
License
Copyright (c) 2026 Josip Rauker, Andrija Šaban, Toni Žepina
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
How to Cite
Sustainable aviation fuels (SAF)
Josip Rauker
University of Applied Sciences Velika Gorica
Andrija Šaban
Toni Žepina
Keywords: Sustainable Aviation Fuel (SAF), aviation decarbonization, alternative fuels
Abstract
The aviation industry faces the challenge of significantly reducing greenhouse gas emissions by 2050, with Sustainable Aviation Fuels (SAF) representing one of the key solutions for sector decarbonization. This paper provides an overview of conventional jet fuels and their physicochemical properties defined by ASTM D1655, as well as the requirements that alternative fuels must meet under ASTM D7566. Particular emphasis is placed on certified SAF production pathways, including Fischer-Tropsch (FT and FT-SKA), HEFA, ATJ, SIP, and HH-SPK/HC-HEFA processes. Feedstocks, chemical conversion routes, energy efficiency, and blending capabilities with conventional Jet A-1 fuel are analyzed. The advantages and limitations of each technology are discussed in terms of technological maturity, economic feasibility, and feedstock availability. Overall, SAF represents a technically viable and regulatory-approved pathway for the gradual reduction of CO₂ emissions in air transport.
