Current sulfur dioxide (SO₂) removal technologies are outdated, costly, and environmentally hazardous. This novel system offers a high-efficiency, low-waste solution for purifying industrial flue gases by converting SO₂ into reusable sulfur compounds. Operating via a carbonate eutectic melt at moderate temperatures, it enables selective recycling of SO₂ without producing slurry waste, thus aligning with future environmental standards and creating potential for sulfur valorization.

• High SO₂ removal efficiency (residual SO₂ in ppm range)
• No generation of hazardous slurry waste
• Operates at standard industrial temperatures (480–550°C)
• Compact system suitable for retrofitting (e.g., ~tens of m³ for 1GW plant)
• Enables revenue generation via production of sulfur/sulfuric acid

Proof-of-concept prototype validated in lab and successfully tested in a coal-burning power plant.