Flue gas desulfurization (FGD) technologies are applied to minimize SO₂ emission to the atmosphere and prevention of acid rains. Magnesium oxide (MgO) is one of the common sorbents to capture sulfur dioxide in FGD. Pore blockage and incomplete conversion are the main problems of sorbents such as CaO and MgO. In this study, acid-washed technique as a modification method was applied to enhance SO₂ adsorption capacity of MgO. The tests were carried out in thermogravimeter (TG) and packed bed reactor to compare the performance of the acid-washed sorbents with the initial natural samples. The results showed that the acid-washed sorbents has more adsorption capacity than the natural samples. Finally, the single pellet conversion–time profiles and packed bed reactor breakthrough curves for both sorbents were predicted by random pore model (RPM) with fairly good agreements.

中文翻译：

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醋酸洗涤改善氧化镁吸附剂提高烟气脱硫性能的理论和实验研究

烟气脱硫（FGD）技术的应用是为了最大限度地减少向大气中排放SO ₂并防止酸雨。氧化镁（MgO）是捕获烟气脱硫中二氧化硫的常见吸附剂之一。孔堵塞和不完全转化是吸附剂（如CaO和MgO）的主要问题。在这项研究中，酸洗技术作为一种改性方法被应用于增强SO ₂MgO的吸附能力。在热重计（TG）和填充床反应器中进行测试，以比较酸洗吸附剂与初始天然样品的性能。结果表明，酸洗的吸附剂比天然样品具有更大的吸附能力。最后，通过随机孔模型（RPM）以良好的一致性预测了两种吸附剂的单颗粒转化时间曲线和填充床反应器穿透曲线。