Scientists turn corn cobs and wood waste into sustainable aviation fuel
Researchers at Darmstadt University of Technology have successfully tested a way to turn organic waste into sustainable fuels. The method converts materials like wood pellets and corn cobs into gases that can later become aviation or marine fuel. This breakthrough is part of an EU-backed project aiming to cut emissions in hard-to-electrify transport sectors.
The process began with drying the raw materials at roughly 250 degrees Celsius. This step boosted their energy density and made them easier to transport. Around seven tons of wood pellets and nine tons of dried corn cobs were used in the trials.
Next, the dried waste was gasified to produce synthesis gasâa mix of hydrogen and carbon monoxide. This gas can then be refined into sustainable aviation fuel (SAF) or methanol for ships, using the Fischer-Tropsch method. The tests were carried out at TU Darmstadtâs pilot facility, which operates on an industrial scale. The findings will help assess the technologyâs economic and environmental viability. The project, named Carbiow, focuses on turning difficult-to-recycle organic waste into cleaner fuels. Its goal is to support the decarbonisation of aviation and shipping, where electrification remains a challenge.
The demonstration shows how biogenic waste could replace fossil fuels in sectors like aviation and maritime transport. The results will now inform future investments in large-scale production. If scaled up, this approach could help reduce reliance on traditional fuels in industries with limited green alternatives.