本文采用热力学平衡分析的方法,对两种吸附剂CaO和SiO2控制燃煤中铅的排放进行了计算.计算使用软件CHEMKIN.结果表明CaO对铅的化学吸附效果很差,而SiO2对铅的化学吸附效果较好.对煤中含有的硫、氯对吸附剂性能的影响也进行了评价,硫和氯会抑制SiO2对铅的吸附效果,但在1200～1300 K对铅的化学吸附效率仍在75%以上.讨论了不同硅铅比对于化学吸附效率的影响,对于实际中选择恰当的硅铅比有指导意义.
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