The reaction kinetics of the sorbent with SO2 was well described by the surface coverage model, which assumes that the s吸收剂与二氧化硫的反应可用表面覆盖模式很好地描述；该模式假设吸收剂晶粒表面之化学反应为速率控制步骤，并且考量被产物覆盖的表面积。