The Tough Tech problem we are solving
With intensifying climate change impacts, hard-to-abate industries like cement, steel, and chemicals face mounting pressure to slash CO₂ emissions, yet conventional carbon capture technologies operate at low temperatures, demanding massive energy inputs, costly retrofits to existing boilers/kilns/furnaces, and unprofitable operations even with incentives. This locks in emissions from point sources responsible for 25%+ of global CO₂, blocking scalable progress toward net-zero by 2050.
About our solution
Mantel's molten borate technology captures CO₂ directly at high-temperature industrial conditions (inside boilers, kilns, and furnaces), enabling unprecedented thermal efficiency by recovering and repurposing capture-generated energy. As the lowest-cost solution available, it turns carbon capture profitable under existing incentives, delivering net-negative potential across sectors while securing energy resilience without infrastructure overhauls or bank-breaking costs.
Read more in The Engine’s case study on Mantel.