2024-04-17 パシフィック・ノースウェスト国立研究所(PNNL)
◆彼らの研究によると、廃棄物を燃料に変換する施設を主要な旅行ハブ近くに建設すれば、米国は年間30億から50億ガロンのSAFを生産し、国内のジェット燃料需要の15〜25％を置き換えることができるとしています。この技術はまだ実用化の初期段階であり、コスト効率や環境への影響も検討が必要です。この取り組みは航空業界の脱炭素化に貢献する可能性があります。
＜関連情報＞
- https://www.pnnl.gov/news-media/garbage-could-replace-quarter-petroleum-based-jet-fuel-every-year
- https://pubs.acs.org/doi/full/10.1021/acssuschemeng.3c02147
米国で低コストの廃棄物から持続可能な航空燃料を生産する費用効果的な機会 Cost-Effective Opportunities to Produce Sustainable Aviation Fuel from Low-Cost Wastes in the U.S
Timothy Seiple, Yuan Jiang, Lesley J. Snowden-Swan, Nicholas Betzsold, Karthikeyan K. Ramasamy, and Corinne Fuller
ACS Sustainable Chemistry & Engineering Published:August 9, 2023
DOI:https://doi.org/10.1021/acssuschemeng.3c02147
Abstract
Converting low-cost wet organic and municipal solid wastes into sustainable aviation fuel (SAF) represents an immediate opportunity to help decarbonize the aviation sector. To accelerate the commercialization of waste-to-energy technologies, we identify feasible deployment opportunities in the United States (U.S.) for two emerging SAF pathways including direct hydrothermal liquefaction for blended wet organic wastes and gasification with methanol synthesis for municipal solid waste. The impact of fuel credits on plant locations, scales, and performance is investigated by varying the target jet fuel price from a baseline 5 year average of USD $1.97 per gasoline gallon equivalent (GGE) to a RIN credit-adjusted target of USD $2.70/GGE. Total feedstock utilization and SAF output are summarized nationally, by state, and by proximity to existing jet fuel storage and major airports. Depending on carbon credit price, between 40 and 100 sites in the U.S. could produce between 13 and 21 billion L/y (3–5 billion gal/y) of SAF, representing 15–25% of total annual jet fuel use, thereby reducing the carbon intensity of the aviation sector by up to 10–18%. Identified opportunities can help focus future SAF efforts in geographic regions with abundant low-cost feedstock supply in proximity to jet fuel storage and demand.
