液相催化氧化净化烟气中SO_2和NO_x的实验研究  

An experimental study on reducing SO_2/NO_x of flue gas by aqueous catalytic oxidation

作　　者：王洁[1] 孙石[1] 和晓荣[2] 黄贤峰[2] 周小兰[2] 

机构地区：[1]云南大学环境与湖泊研究院,云南昆明650091 [2]云南大学生命科学学院,云南昆明650091

出　　处：《云南大学学报（自然科学版）》2006年第6期526-529,共4页Journal of Yunnan University(Natural Sciences Edition)

基　　金：国家自然科学基金资助项目(50478116)

摘　　要：采用Fe^2＋，Mn^2＋，Zn^2＋，Al^3＋4种金属离子进行了催化氧化SO2和NO废气的实验．对循环吸收液的酸度、催化剂浓度最佳配比及操作条件的改变等对SO2和NO催化氧化效率的影响及其变化规律进行了研究．结果表明，当Fe^2＋，Mn^2＋，Zn^2＋，Al^3＋质量分数分别为0．5％，0．2％，0．5％，1．0％，气体流量为0．1m^3／h；循环液流量为6～8L／h时，SO2和NO催化氧化效率分别为95％和50％以上．The experiment of aqueous catalytic oxidation SCh/NO of flue gas was carried out by using catalysts of Fe^2＋, Mn^2＋, Zn^2＋ and A;^3＋ . The influence and the varying law of acid concentration of absorbing solution, the optimum concentration of catalyst, operation conditions on the efficiency of catalytic oxidation SO2/ NO were studied. Re.arch showed that when the concentration of Fe^2＋, Mn^2＋, Zn^2＋, Al^3＋ were 0.5 %, 0. 2%, 0.5%, 1.0% respectively, the gas flow was 0.1 m^3/h, circulated liquid flow was 6-8 L/h, the efficiency of catalytic oxidation SO2/NO can be achieved above 95% and 50% respectively by this method.

关 键 词：液相催化氧化 填料塔 SO2和NO废气 烟气净化 

分 类 号：X701[环境科学与工程—环境工程]