Catalytic oxidation of hydrogen sulphide by air over an activated carbon fibre

Activated carbon fiber (ACF), FN-200CF-15, made from coal tar, oxidized hydrogen sulphide effectively to sulphuric acid at an inlet concentration of 200 ppm and space velocity (SV = flow rate/packing volume) of 100 h-1 (sulphur load 11 g-S/day kg-fiber) for one and a half months only by keeping the moisture content of ACF more than 50%. This phenomenon is different from granular activated carbon (GAC) reported previously.