2024-10-08 アルゴンヌ国立研究所(ANL)
＜関連情報＞
- https://www.anl.gov/article/argonne-technology-converts-waste-streams-into-biofuel-that-dramatically-reduces-carbon-emissions
- https://pubs.acs.org/doi/10.1021/acssuschemeng.4c00167
膜支援揮発性脂肪酸生産による高強度廃水からの持続可能な航空燃料： 実験的評価、技術経済、ライフサイクル分析 Sustainable Aviation Fuel from High-Strength Wastewater via Membrane-Assisted Volatile Fatty Acid Production: Experimental Evaluation, Techno-economic, and Life-Cycle Analyses
Haoran Wu,Taemin Kim,Sultana Ferdous,Thai Scheve,Yupo Lin,Lauren Valentino,Mark Holtzapple,Troy R. Hawkins,Pahola Thathiana Benavides,and Meltem Urgun-Demirtas
ACS Sustainable Chemistry & Engineering Published: April 25, 2024
DOI:https://doi.org/10.1021/acssuschemeng.4c00167
Abstract
To reduce emissions from combustion of fossil fuels, sustainable aviation fuels (SAFs) have the potential to decarbonize the aviation sector. Redirecting wastes from conventional waste management practices and using them as cost-effective feedstocks for low-carbon fuels can reduce emissions from both waste disposal and fuel combustion. One approach is to upgrade wet wastes to SAF precursors, such as volatile fatty acids (VFAs). In this study, novel membrane-assisted arrested methanogenesis was developed to convert high-strength wastewater to VFAs. Based on experimental results of VFA production, techno-economic and life-cycle analyses were conducted to estimate the potential economic and environmental benefits of SAF production from high-strength wastewater via VFAs. By evaluating three proposed scenarios for VFA production, a minimum production cost of VFA is achieved at $0.60/kg VFA at a wastewater flow rate of 1100 MT/d. For the corresponding VFA-derived SAF, the estimated minimum fuel selling price is $4.64/gasoline gallon equivalent. The life-cycle analysis shows that up to a 71% reduction in greenhouse gas emissions can be achieved relative to its fossil-counterpart along with lower water and fossil-fuel consumption.
