Na-Ba/γ-Al_2O_3的NO和SO_2吸附性能研究  

Study on the adsorption properties of NO and SO_2 on Na-Ba/γ-Al_2O_3

作　　者：肖建华[1] 徐建昌[1] 李雪辉[1] 王乐夫[1] 

机构地区：[1]华南理工大学化工与能源学院

出　　处：《环境污染与防治》2006年第5期337-339,360,共4页Environmental Pollution & Control

基　　金：国家自然科学基金资助项目(No.20476032);广东省自然科学基金资助项目(No.030951);广东省科技攻关项目(No.2KB06601S)。

摘　　要：研究了Na -Ba/γAl2O3吸附催化剂上NO和SO2的吸附—脱附性能。Na、Ba质量分数分别为6.2%、5.4%,焙烧温度和焙烧时间分别为600℃和10h,吸附温度为100℃,其对NO、SO2的最大吸附量分别为0.0524、0.344mmol/g。同时考察了添加第三活性组份的影响,结果表明,Fe最为有效,Na- Ba/Fe/γAl2O3的NO、SO2最大吸附量分别为0.0624、0.486mmol/g。漫反射红外光谱研究结果表明,Fe降低了硫酸盐分解温度,促进吸附催化剂的再生。The adsorption-desorption properties of NO and SO2 on the Na-Ba/γ-Al2O3 adsorbent were investigated. The adsorbing capability of NO and SO2 at 100 ℃ on Na-Ba/γ- Al2O3 calcinated at 600 ℃ for 10 h, with Na and Ba mass content of 6.2% and 5.4% respectively, reached the maximum value of 0. 052 4 mmol/g and 0. 344mmol/g respectively. The effect of the third active components on adsorbing capability was also studied. The results show that Fe was the most beneficial, the adsorbing capability of NO and SO2 on the Na-Ba-Fe/γ-Al2O3 adsorbent reached the maximum value of 0. 062 4 mmol/g and 0. 486 mmol/g respectively. The results of Diffuse Reflection Infrared Spectroscopy demonstrate that the addition of Fe reduces the decomposition temperature of the BaSO4 and improves the regeneration of the Na-Ba-Fe/γ-Al2O3 adsorbent.

关 键 词：NO SO2 吸附 脱附 

分 类 号：X701[环境科学与工程—环境工程]