Treatment of H_2S by modified activated carbon

The modification of industrial activated carbon 4#(AC4) with sulfonated cobalt phthalocyanine(CoPcS) impregnant and the adsorption capacities of NaOH,Cu(AC)2,CoPcS toward H2S were studied in comparison,leading to the result:CoPcSCu(AC)2NaOH.The effects of reaction conditions were investigated.The fresh activated carbon and modified activated carbon before and after H2S adsorption were characterized by SEM.The results showed that the optimum conditions were at 60℃ with 1.5% of oxygen content.Furthermore,SEM distribution indicated that the result of adsorption became obviously better by the change of pore structure of modified activated carbon and the formation of surface active materials.