Coal based granular carbon for desulfurization is widely used for flue gas desulfurization in thermal power plants, oil refining, petrochemical industry, chemical fiber industry, raw material gas desulfurization in fertilizer industry, and gas desulfurization in gas and other chemical industries. It is an additive for making carbon disulfide.

Desulfurized carbon refers to Activated carbon 。 The presence of surface functional groups composed of oxygen, nitrogen and other heteroatoms and ash on the surface of activated carbon can catalyze many reactions, especially oxidation reactions, which can catalyze the removal of H? S。 Thermal power plants, boiler rooms, power plants and chemical plants are all places where various forms of sulfur compounds are excluded. FGD activated carbon is used in coal thermal power plant (oil thermal power plant) to oxidize sulfuric acid gas in flue gas into sulfuric acid and accumulate in the pores of activated carbon. Desulfurized activated carbon affects SO? Physical adsorption removes part of S0? It is catalysed and oxidized by the surface of activated carbon, and exists in the pore of activated carbon in the form of sulfuric acid, which is desorbed by heating or water washing. The desulfurization effect of activated carbons with different pore structures was studied. It was found that micropores with pore size of 0.5~1nm had higher catalytic activity, while the desulfurization effect of too large and too small pores was much weaker. Desulfurization activated carbon has the advantages of low cost, simple operation and high desulfurization efficiency.