Fueling the Future: Scientists Turn Corn Waste into Ultra-Efficient Jet Fuel

In a landmark advancement for green aviation, researchers from the University of Maryland and Oak Ridge National Laboratory have developed a method to convert corn stover sugars into high-energy bicycloalkanes, creating a next-generation sustainable aviation fuel (SAF) that is denser, cleaner, and more efficient than conventional jet fuels.

Unlike many SAFs that are only compatible as 50% blends, these bicycloalkane fuels are drop-in ready, meaning they can fully replace fossil jet fuel in current aircraft engines, without modifications.

How the Process Works

1. Feedstock: Uses corn stover (non-edible agricultural waste)
2. Sugars to Furfurals: Converts mixed sugars (glucose, xylose) into furfural intermediates
3. Catalytic Conversion: Uses Pd/C and zeolite catalysts to build bicycloalkane rings
4. Final Product: Produces C10–C12 cycloalkanes with superior volumetric energy density

Highlights & Key Benefits

• Energy density: ~7% higher than Jet-A fuel
• Freezing point: −62°C (lower than conventional fuels, ideal for high-altitude)
• Drop-in compatible with no engine changes
• Renewable source: Non-edible corn biomass
• Carbon reduction potential: Up to 80% less lifecycle CO₂ emissions
• Blend flexibility: 100% neat or mixed SAF-ready

Environmental & Industrial Impact

This development helps achieve global climate goals by:

• Replacing petroleum-based jet fuels
• Upcycling agricultural waste
• Powering long-haul aviation sustainably
• Reducing particulate emissions and contrail formation

Reference

Kumar, A., Katahira, R., Yang, Z., Bayles, A., Kumar, A., Ruddy, D., … & Mittal, A. (2025). Advancing sustainable aviation fuel with high-energy-density bicycloalkanes production from corn stover mixed sugars. Cell Reports Physical Science. DOI: 10.1016/j.xcrp.2025.102692

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