Na/γ-Al_2O_3吸附剂上NO和SO_2的吸附性能研究  

Study on the Adsorption of NO and SO_2 on Na/γ-Al_2O_3

作　　者：徐建昌[1] 李雪辉[1] 王乐夫[1] 

机构地区：[1]华南理工大学化工学院,广州510640

出　　处：《天然气化工—C1化学与化工》2005年第3期20-24,共5页Natural Gas Chemical Industry

基　　金：国家自然科学基金资助项目 (2 0 0 760 1 7);广东省自然科学基金资助项目(980 51 2 0 0 0 42 8);广东省科技攻关项目 (2 KB0 660 1 S);广东省环保局科技基金资助项目

摘　　要：以Na/γ-Al2O3为吸附剂,研究了NO、SO2在该吸附剂上的吸附、脱附性能。结果表明:SO2很容易被吸附,而NO必须在SO2和O2存在时才能被大量吸附,SO2的吸附对NO的吸附具有促进作用;吸附剂中Na含量为7.8%,温度为100℃时NO、SO2的最大吸附量分别为0.0436mmol/g和0.264mmol/g。漫反射红外光谱分析结果表明,热脱附只能脱附出NOx,而不能把SOx脱附下来,从而达到了将NO和SO2分开治理的目的。<Abstrcat> The adsorption-desorption properties of NO and SO_2 on Na/γ-Al_2O_3 adsorbent were investigate. The experimental results showed that SO_2 was adsorbed easily, but the adsorption of NO took place only in the presence of SO_2 and O_2, and the adsorption of SO_2 could promote the adsorption of NO .When the Na content reached 7.8% mass, under the adsorption temperature of 100 ℃, the adsorbing capability of this adsorbent to NO and SO_2 reached the maximum value of 0.0436mmol/g respectively . The studying of DRIFTs spectra showed that only NO_x could be desorbed from the adsorbent. Hence, the mixture of NO and SO_2 could be separated under this adsorbent.

关 键 词：NO SO2 吸附 脱附 Na/γ-Al2O3 

分 类 号：O643.36[理学—物理化学]