气候变化领域集成服务门户(CCPortal): Toward net-zero sustainable aviation fuel with wet waste

CCPortal

DOI	10.1073/pnas.2023008118
	Toward net-zero sustainable aviation fuel with wet waste–derived volatile fatty acids
	Huq N.A.; Hafenstine G.R.; Huo X.; Nguyen H.; Tifft S.M.; Conklin D.R.; Stück D.; Stunkel J.; Yang Z.; Heyne J.S.; Wiatrowski M.R.; Zhang Y.; Tao L.; Zhu J.; McEnally C.S.; Christensen E.D.; Hays C.; van Allsburg K.M.; Unocic K.A.; Meyer H.M.; III; Abdullah Z.; Vardon D.R.
发表日期	2021
ISSN	00278424
卷号	118 期号:13
英文摘要	With the increasing demand for net-zero sustainable aviation fuels (SAF), new conversion technologies are needed to process waste feedstocks and meet carbon reduction and cost targets. Wet waste is a low-cost, prevalent feedstock with the energy potential to displace over 20% of US jet fuel consumption; however, its complexity and high moisture typically relegates its use to methane production from anaerobic digestion. To overcome this, methanogenesis can be arrested during fermentation to instead produce C2 to C8 volatile fatty acids (VFA) for catalytic upgrading to SAF. Here, we evaluate the catalytic conversion of food waste–derived VFAs to produce n-paraffin SAF for near-term use as a 10 vol% blend for ASTM “Fast Track” qualification and produce a highly branched, isoparaffin VFA-SAF to increase the renewable blend limit. VFA ketonization models assessed the carbon chain length distributions suitable for each VFA-SAF conversion pathway, and food waste–derived VFA ketonization was demonstrated for >100 h of time on stream at approximately theoretical yield. Fuel property blending models and experimental testing determined normal paraffin VFA-SAF meets 10 vol% fuel specifications for “Fast Track.” Synergistic blending with isoparaffin VFA-SAF increased the blend limit to 70 vol% by addressing flashpoint and viscosity constraints, with sooting 34% lower than fossil jet. Techno-economic analysis evaluated the major catalytic process cost-drivers, determining the minimum fuel selling price as a function of VFA production costs. Life cycle analysis determined that if food waste is diverted from landfills to avoid methane emissions, VFA-SAF could enable up to 165% reduction in greenhouse gas emissions relative to fossil jet. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Biojet; Decarbonization; Food waste; Ketonization
语种	英语
scopus关键词	fuel; methane; net zero sustainable aviation fuel; unclassified drug; volatile fatty acid; aldol reaction; anaerobic digestion; Article; carbon footprint; catalysis; chemical structure; fatty acid synthesis; food waste; greenhouse gas; landfill; life cycle assessment; low temperature; priority journal; viscosity
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/180117
作者单位	Catalytic Carbon Transformation Center, National Renewable Energy Laboratory, Golden, CO 80401, United States; Mechanical and Aerospace Engineering, University of Dayton, Dayton, OH 45469, United States; Chemical and Environmental Engineering, Yale University, New Haven, CT 06520, United States; Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN 37380, United States; Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37380, United States
推荐引用方式 GB/T 7714	Huq N.A.,Hafenstine G.R.,Huo X.,等. Toward net-zero sustainable aviation fuel with wet waste–derived volatile fatty acids[J],2021,118(13).
APA	Huq N.A..,Hafenstine G.R..,Huo X..,Nguyen H..,Tifft S.M..,...&Vardon D.R..(2021).Toward net-zero sustainable aviation fuel with wet waste–derived volatile fatty acids.Proceedings of the National Academy of Sciences of the United States of America,118(13).
MLA	Huq N.A.,et al."Toward net-zero sustainable aviation fuel with wet waste–derived volatile fatty acids".Proceedings of the National Academy of Sciences of the United States of America 118.13(2021).