Durable infrastructure
Cement, the binding agent in concrete, emits large amounts of CO₂ both from the high-temperature kilns used in its production and from the chemical reaction that forms it. By displacing cement with processed fly ash, builders can create more sustainable concrete without compromising performance.
PHNX’s system targets sulfur and carbon, common impurities in fly ash that concrete makers typically reject. Removing those contaminants not only purifies the ash for construction use, but also yields marketable byproducts like sulfur and aluminum. The startup is also exploring the extraction of rare earth elements, which are in high demand for clean energy technologies.