Scientists at Washington State University (WSU) have successfully tested a groundbreaking method to produce sustainable jet fuel from lignin-based agricultural waste.
Their research, published in the journal Fuel Processing Technology, demonstrates a continuous process that converts lignin polymers—key components of plant cells—into jet fuel, enhancing the performance of sustainable aviation fuels.
Lignin, a structural molecule that gives plants their toughness, is primarily derived from corn stover and other agricultural byproducts.
The WSU team developed a process known as “simultaneous depolymerization and hydrodeoxygenation,” which simultaneously breaks down lignin while removing oxygen to create a usable fuel.
This method was tested at the WSU facility in Richland, where dissolved lignin was introduced into a continuous hydrotreating reactor.
WSU scientists demonstrate a promising method to produce renewable fuels from lignin agricultural byproducts.With global aviation fuel consumption peaking at nearly 100 billion gallons in 2019 and expected to rise, the need for sustainable alternatives is pressing.
Lignin-based jet fuel has the potential to significantly reduce the aviation industry’s carbon footprint and meet international carbon neutrality goals.
By replacing fossil fuel-derived compounds, this innovative fuel can diminish the environmental impact of contrails associated with conventional fuels.
The research indicates that lignin could serve as a valuable source of hydrocarbons, which enhance fuel density and performance.
Josh Heyne, a member of the research team, highlighted the importance of developing 100% renewable aviation fuel that can seamlessly integrate into existing engines and infrastructure.
Supported by the U.S. Department of Energy and other institutions, the team is now focused on refining its process to improve efficiency and reduce costs, paving the way for a more sustainable future in aviation fuel production.