Research on microstructure and surface morphology of sulfur-loading active carbon
载硫活性炭微观结构和表面形态研究

Hg can react with sulfur to form HgS which is stable. To remove mercury in fuel gas from coal combustion plant, sulfur content in active carbon was increased by thermal deposition in this work. SEM, BET, TGA and other measurement methods were used to characterize the effect on surface morphology, sulfur distribution and specific surface. The experimental results showed that thermal deposition was effective in increasing sulfur content in active carbon; most sulfur was adhered on the carbon chain and little was on the wall of pore; specific surface was decreased though deposition and it increased with temperature increase; binding between carbon and sulfur molecular was increased.