以农业废弃物核桃壳为原料，以及炼钢副产品铁水脱硫渣作为添加剂，采用共混法制备铁水脱硫渣-生物质活性炭。采用固定床反应器对铁水脱硫渣-生物质活性炭进行脱硫实验，考察入口SO2含量、床层温度、水蒸气含量、空速和氧气含量等工艺参数对其脱硫性能的影响。结果表明，随着入口SO2含量和空速的增加，铁水脱硫渣-生物质活性炭的穿透硫容和脱硫穿透时间均减小，床层温度是显著因素，水蒸气和氧气有利于铁水脱硫渣-生物质活性炭的化学吸附，铁水脱硫渣-生物质活性炭的脱硫最优工艺参数：即入口SO2含量、空速、床层温度、水蒸气含量和氧气含量分别为0.25%、750 h-1、85℃、9%和12%，其穿透硫容为274.1 mg/g和脱硫穿透时间为31 h。
Using walnut shell of agricultural waste as raw material and desulfurized slag of steelmaking by-products as additive, desulfurized slag-novel biomass activated carbon was prepared by blending method. The desulfurized slag-novel biomass activated carbon was used for flue gas desulphurization in a fixed-bed reactor. The impact of operating parameters such as SO2 inlet concentration, space velocity, bed temperature, moisture content and O2 concentration on the desulfurization efficiency of desulfurized slag-novel biomass activated carbon was investigated. The results show that with the increase of SO2 inlet concentration and space velocity, breakthrough sulfur capacity and desulfurization penetration time of desulfurized slag-novel biomass activated carbon were reduced. Bed temperature was a significant factor. Moisture content and O2 concentration were beneficial to chemical adsorption of desulfurized slag-novel biomass activated carbon. The optimal process parameters desulfurization of desulfurized slag-novel biomass activated carbon, such as SO2 inlet concentration, space velocity, bed temperature, moisture content and O2 concentration were 0. 25%, 750 h-1 , 85 ℃, 9% and 12% respectively. The breakthrough sulfur capacity is 274. 1 mg/g and desulfurization penetration time is 31 h.
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