Swiss researchers have made significant progress in the quest for sustainable and eco-friendly eFuels production by harnessing carbon dioxide from the air and solar energy. They achieved this breakthrough by using a 3D-printed ceramic reactor, which substantially increased the yield of their solar plant. The promising results suggest a potential boost to the economic viability of producing CO₂-neutral paraffin and other fuels.

Traditionally, our reliance on fossil fuels like crude oil for petrol and paraffin has exacerbated atmospheric carbon dioxide levels, intensifying climate change concerns. To address this, scientists are actively pursuing processes that yield climate-neutral fuels—ones that release only as much CO₂ as they previously absorbed during production. Researchers at the Swiss Federal Institute of Technology Zurich (ETH Zurich) have been pioneers in this endeavor for several years.

Their innovative approach leverages 3D-printed ceramic reactors, optimizing them with hierarchical channels and pores, a key advancement in Solar- / Power-to-X technology. This design effectively increases the absorption of concentrated solar radiation, enabling the entire porous structure to reach the required 1500-degree temperature for fuel production.

The results are incredibly promising, with these advanced ceramic structures doubling fuel production under the same concentrated solar radiation compared to previous uniform designs. This breakthrough has garnered significant attention, with university spin-off company Synhelion already committed to commercializing this transformative concept. Furthermore, the technology behind 3D printing these ceramic structures has been patented, securing its place in the eFuels revolution.

In conclusion, this remarkable progress in sustainable eFuels production not only aligns with the energy transition objectives but also has the potential to revolutionize the Power-to-X and eFuels industry. It promises to significantly enhance energy efficiency in solar reactors, making eco-friendly aviation fuels more economically viable.

Source: Swiss Federal Institute of Technology Zurich (ETH Zurich), technical article: Advanced Materials Interfaces,