Treatment of Hydrochloric Acid in Flue Gas from Municipal Solid Waste Incineration with Ca-Mg-Al Mixed Oxides at Medium-High Temperatures
Treatment of Hydrochloric Acid in Flue Gas from Municipal Solid Waste Incineration with Ca-Mg-Al Mixed Oxides at Medium-High Temperatures
复制标题
中高温钙镁铝混合氧化物处理城市生活垃圾焚烧烟气中的盐酸
DOI：
10.1021/ef5008193
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发表时间：
2014
期刊：
影响因子：
5.3
通讯作者：
Cao J
中科院分区：
文献类型：
--
作者：
Cao J
合成了一种钙镁铝复合氧化物吸附剂，用于中高温下HCl的去除。操作条件根据气体温度（300-700 °C）、初始HCl浓度（500-1000 ppm）和质量流速（0.5-1.3 L/min）来规定。采用X射线粉末衍射（XRD）技术研究了Ca-Mg-Al复合氧化物的特性。结果表明，由于Ca-Mg-Al复合氧化物的特殊结构，使其具有比传统脱硫剂更好的脱硫性能，加速了HCl与Ca-Mg-Al复合氧化物的反应。与MgO、NaHCO 3和CaO相比，Ca-Mg-Al复合氧化物的吸附容量最高。Ca-Mg-Al复合氧化物的去除率在所有操作条件下均在95%以上，最高可达99%。
A calcium–magnesium–aluminum (Ca–Mg–Al) mixed oxide sorbent was synthesized for the removal of HCl at medium–high temperatures. The operating conditions were specified in terms of the temperature of the gas (300–700 °C), the initial HCl concentration (500–1000 ppm), and the mass flow rate (0.5–1.3 L/min). X-ray powder diffraction (XRD) was applied to investigate the characteristics of Ca–Mg–Al mixed oxides. The results show that, because of the better properties of Ca–Mg–Al mixed oxides than traditional sorbents, which is related to the special structure in as-prepared, the reaction between HCl and Ca–Mg–Al mixed oxides is accelerated. The adsorption capacity of Ca–Mg–Al mixed oxides is the highest when compared to MgO, NaHCO3, and CaO. The removal efficiency of Ca–Mg–Al mixed oxides is more than 95% and even up to 99% under all of the operating conditions.