2024-09-26 ワシントン州立大学(WSU)
＜関連情報＞
- https://news.wsu.edu/press-release/2024/09/26/new-continuous-reaction-process-can-help-turn-plant-waste-into-sustainable-aviation-fuel/
- https://www.sciencedirect.com/science/article/pii/S0378382024000997
連続フローリアクターでリグニンベースのジェット燃料を製造する解重合とヒドロデオキシ化の同時プロセス A simultaneous depolymerization and hydrodeoxygenation process to produce lignin-based jet fuel in continuous flow reactor
Adarsh Kumar, David C. Bell, Zhibin Yang, Joshua Heyne, Daniel M. Santosa, Huamin Wang, Peng Zuo, Chongmin Wang, Ashutosh Mittal, Darryl P. Klein, Michael J. Manto, Xiaowen Chen, Bin Yang
Fuel Processing Technology Available online: 2 September 2024
DOI:https://doi.org/10.1016/j.fuproc.2024.108129
Graphical abstract
Highlights
- Simultaneous depolymerization and HDO of lignin demonstrated in continuous flow reactor.
- Aviation fuel range cycloalkanes produced with 17.9 wt% carbon yield.
- Tier alpha fuel properties identified these cycloalkanes as a good fit for aviation fuel.
- Exchange of K+ ion from lignin solution and coke deposition to catalyst surface observed.
Abstract
Economical production of lignin-based jet fuel (LJF) can improve the sustainability of sustainable aviation fuels (SAFs) as well as can reduce the overall greenhouse gas emissions. However, the challenge lies in converting technical lignin polymer from biorefinery directly to jet fuel in a continuous operation. In this work, we demonstrate a simultaneous depolymerization and hydrodeoxygenation (SDHDO) process to produce lignin-based jet fuel from the alkali corn stover lignin (ACSL) using engineered Ru-HY-60-MI catalyst in a continuous flow reactor, for the first time. The maximum carbon yield of LJF of 17.9 wt% was obtained, and it comprised of 60.2 wt% monocycloalkanes, and 21.6 wt% polycycloalkanes. Catalyst characterization of Ru-HY-60-MI suggested there was no significant change in HY zeolite structure and its crystallinity after catalyst engineering. Catalyst characterizations performed post the SDHDO experiments indicate presence of carbon and K content in the catalyst. K content presence in the spent catalyst was due to K+ ion was exchanged between lignin solution and HY-60 while carbon presence validated the SDHDO chemistry on the catalyst surface. Tier α fuel property testing indicates that LJF production using SDHDO chemistry can produce SAF with high compatibility, good sealing properties, low emissions, and high energy density for aircraft.
