Researchers at the University of Seville's Surfcat (Surface Chemistry and Catalysis) research group have made advancements in converting waste into sustainable biofuels. This innovation focuses on refining the process of creating biofuels from urban waste, CO2, and discarded materials.
With electrification not yet viable for heavy transport sectors like aviation and shipping, biofuels offer a promising alternative. The Surfcat team utilizes pyrolysis and gasification to break down various waste materials, including urban refuse, carbon dioxide, biomass, discarded clothing, and sewage sludge. The resulting gas or liquid is then processed using advanced catalysis, a patented technique.
Professor Tomás Ramírez-Reina likens the catalytic process to adding "seasonings" to speed up the creation of desired chemical compounds while reducing energy consumption. Lead chemist José Antonio Odriozola highlights the process's adaptability to different waste streams, promoting a circular economy. The team is also exploring using hydrogen to enhance biofuel production.
While the biofuel's cost is currently higher than fossil fuels, its environmental benefits are significant. Pilot plants are planned for waste dumps and wastewater treatment facilities, potentially transforming waste management into fuel production. This research highlights the potential for waste to power transportation, reduce emissions, and foster a circular economy.