期刊
ENERGIES
卷 15, 期 7, 页码 -出版社
MDPI
DOI: 10.3390/en15072440
关键词
aviation; carbon footprint; reduced emissions; sustainable aviation fuels
资金
- FCT, through IDMEC, under LAETA [UIDB/50022/2020]
With the push for carbon-neutral transport, the aviation sector is under pressure to reduce its carbon footprint. Sustainable aviation fuels, such as bio and synthetic fuels, are the most viable options, although there are challenges in production and technology. Government support plays a crucial role in accelerating the transition towards sustainable aviation.
As the push for carbon-neutral transport continues, the aviation sector is facing increasing pressure to reduce its carbon footprint. Furthermore, commercial air traffic is expected to resume the continuous growth experienced until the pandemic, highlighting the need for reduced emissions. The use of alternative fuels plays a key role in achieving future emission goals, while also lowering the dependency on fossil fuels. The so-called sustainable aviation fuels (SAF), which encompass bio and synthetic fuels, are currently the most viable option, but hydrogen is also being considered as a long-term solution. The present paper reviews the production methods, logistical and technological barriers, and potential for future mass implementation of these alternative fuels. In general, biofuels currently present higher technological readiness levels than other alternatives. Sustainable mass production faces critical feedstock-related challenges that synthetic fuels, together with other solutions, can overcome. All conventional fuel replacements, though with different scopes, will be important in meeting long-term goals. Government support will play an important role in accelerating and facilitating the transition towards sustainable aviation.
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