金属镁冶炼还原渣脱硫性能

为充分利用固废资源，降低脱硫成本，采用传统皮江法冶镁工艺中产生的金属镁渣为基质，利用实验室湿式脱硫系统，对不同镁渣粒径、烟气气体流速、二氧化硫浓度、固液质量比（简称固液比）以及氧气含量条件下的脱硫性能进行了研究。结果表明，样品粒径越小，流速越慢，二氧化硫流速越低，固液比越低，脱硫量越高；反之，则脱硫量越小。在粒径0.106 mm、烟气流速340 mL/min、二氧化硫流速10 mL/min、固液比0.1 g/g、饱和脱硫时间1 575 min的条件下，二氧化硫吸附量为1 354.62 mg/g。

Desulfurization Performance of Magnesium Reduction Slag

In order to make full use of solid waste resources and reduce cost of desulfurization, magnesium slag produced in traditional Pidgeon magnesium smelting process was used as the matrix, desulfurization performances under different conditions including magnesium slag particle size, flue gas flow rate, sulfur dioxide concentration, mass of solid to liquid, and oxygen content were studied through laboratory wet desulfurization system. The results show that the smaller the particle size of sample, the slower the flow rate, the lower the flow rate of sulfur dioxide, and the lower the mass of solid to liquid, the higher the desulfurization amount. The adsorption capacity of sulfur dioxide is 1 354.62 mg/g under the conditions including particle size of 0.106 mm, flow rate of flue gas of 340 mL/min, flow rate of sulfur dioxide of 10 mL/min, mass of solid to liquid of 0.1 g/g, and saturation desulfurization time of 1 575 min.