• • Mn-45/F-0.2 composite adsorbent extended SO2 breakthrough time from 50.9 to 54.5 min, a 7.1% increase, directly improving operational runtime for dry desulfurization systems.
• • Sulfur breakthrough capacity increased from 190.2 to 205.4 mg/g (8.0% improvement), enabling higher contaminant loading per adsorbent mass and reducing material replacement frequency.
• • Hg0 co-removal efficiency improved from 10.4% to 14.9% (43.3% relative increase), demonstrating enhanced multi-pollutant control capability in a single unit.
• • Mn doping and F127 modification increased specific surface area and pore volume, mitigating pore blockage by CaSO3/CaSO4 and preserving active sites for sustained SO2/Hg0 removal.