It is refined by a series of production processes with high quality coal as raw material. Its appearance is pelletized or granular form, it has suitable specific surface area, moderate pore structure, high mechanical strength, can withstand high temperature,and high pressure,not easy to break, long service life and so on. Widely used in steel industry, oil refining, flue gas desulfurization in petrochemical industry, raw gas desulfurization in the fertilizer industry,natural gas desulfurization and gas desulfurization in other chemical industries. It is the best additive for the production of carbon disulfide.