Pioneer facilities for Sustainable Aviation Fuels (SAF) convert fats, oils, and grease into hydrocarbons using the Hydroprocessed Esters and Fatty Acids (HEFA) technology. However, limited feedstock availability and sustainability concerns may restrict broader adoption. Biotechnology offers an alternative by enabling microbial oil production from sugars, expanding the feedstock portfolio with more productive biomass sources or waste materials. This study assessed the economic and environmental impacts of SAF production through HEFA using microbial oil from sugarcane, combining achievable fermentation performance with mature catalytic conversion. The results demonstrated SAF costs between $1.83 and $3.00 per liter and over 50 % reduction in greenhouse gas emissions compared to fossil fuels. Sensitivity analysis identified fermentation performance as the key factor driving these outcomes. Additionally, this approach yielded higher SAF per hectare than soybean-oil-based HEFA, potentially reducing emissions from land-use change.

中文翻译：

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可持续航空燃料的替代原料：甘蔗衍生微生物油的评估


可持续航空燃料 （SAF） 的先驱设施使用加氢加工酯和脂肪酸 （HEFA） 技术将脂肪、油和油脂转化为碳氢化合物。然而，有限的原料供应和可持续性问题可能会限制更广泛的采用。生物技术提供了一种替代方案，它使糖能够生产微生物油，用更高效的生物质来源或废料来扩大原料组合。本研究评估了通过使用甘蔗中的微生物油的 HEFA 生产 SAF 的经济和环境影响，将可实现的发酵性能与成熟的催化转化相结合。结果表明，SAF 的成本在每升 1.83 美元到 3.00 美元之间，与化石燃料相比，温室气体排放量减少了 50% 以上。敏感性分析确定发酵性能是驱动这些结果的关键因素。此外，这种方法每公顷产生的 SAF 高于基于大豆油的 HEFA，有可能减少土地利用变化造成的排放。