微纳米气泡耦合Fe3O4催化氧化吸收烟气中的NO  

Absorption of NO from flue gas by micro-nano bubbles coupled with Fe3O4 catalytic oxidation

作　　者：卢洁 张荣梁 李登新 许士洪[1,2] 林政友 LU Jie;ZHANG Rong-liang;LI Deng-xin;XU Shi-hong;LIN Zheng-you(College of Environmental Science and Engineering,Donghua University,Shanghai 201620,China;Donghua University National Environmental Protection and Textile Pollution Prevention and Control Engineering andTechnology Center,Shanghai 201620,China;School of Environmental Science and Engineering,Tongji University,State Key Laboratory of Pollution Control and Resource Utilization,Shanghai 200082,China;Shanghai Institute of Pollution Control and Ecological Security,Shanghai 200082,China;Shanghai Huan’an Environmental Management Co.,Ltd.,Shanghai 200333,China)

机构地区：[1]东华大学环境科学与工程学院,上海201620 [2]东华大学国家环境保护纺织污染防治工程技术中心,上海201620 [3]同济大学环境科学与工程学院污染控制与资源化研究国家重点实验室,上海200082 [4]上海污染控制与生态安全研究院,上海200082 [5]上海环安环境管理有限公司,上海200333

出　　处：《应用化工》2021年第1期23-26,31,共5页Applied Chemical Industry

基　　金：国家自然科学基金委-钢铁联合研究基金资助项目(U1660107);上海市生态环境局资助项目(沪环科[2019]第10号)。

摘　　要：以Fe3O4作为催化剂,耦合微纳米气泡在SO2存在的情况下催化氧化吸收烟气中的NO。研究了各种因素变化对Fe3O4耦合微纳米气泡催化氧化去除NO的影响。采用XRD、SEM、EDS和XPS表征手段对反应前后的Fe3O4进行了表征。结果表明,当Fe3O4投加量为5 g、pH为3、NO的进气量为50 mL/min时,NO的氧化吸收效率最高,达93.8%。Fe3O4同时含有Fe2+和Fe3+的特殊属性可促进NO的高效脱除,Fe3O4反应前后物相没有发生变化。Fe3O4 was used as a catalyst to couple the micro-nano bubbles to oxidize and absorb NO in the flue gas in the presence of SO2.The effects of various factors on the catalytic oxidation of Fe3O4 coupled micro-nano bubbles were investigated.The Fe3O4 before and after the reaction was characterized by XRD,SEM,EDS and XPS.The results show that when the dosage of Fe3O4 is 5 g,the pH is 3,and the intake of NO is 50 mL/min,the oxidation absorption efficiency of NO is the highest,reaching 93.8%.The characterization results show that Fe3O4 contains the special properties of Fe2+and Fe3+,which can promote the efficient removal of NO.The phase of Fe3O4 does not change before and after the reaction.

关 键 词：微纳米气泡 FE3O4 催化氧化 

分 类 号：TQ110.9[化学工程—无机化工] X701.7[环境科学与工程—环境工程]