Removal of nitric oxide from simulated flue gas using aqueous persulfate with activation of ferrous ethylenediaminetetraacetate in the rotating packed bed

作     者：Da Guo Guisheng Qi Dong Chen Jiabao Niu Youzhi Liu Weizhou Jiao Da Guo;Guisheng Qi;Dong Chen;Jiabao Niu;Youzhi Liu;Weizhou Jiao

作者机构：Shanxi Province Key Laboratory of Higee-Oriented Chemical EngineeringNorth University of ChinaTaiyuan 030051China School of Chemistry and Chemical EngineeringNorth University of ChinaTaiyuan 030051China 

出 版 物：《Frontiers of Chemical Science and Engineering》 (化学科学与工程前沿（英文版）)

年 卷 期：2023年第17卷第4期

页      面：460-469页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 

基　　金：the National Natural Science Foundation of China International (Regional)Cooperation and Exchange Project (Grant No.21961160740) the Shanxi Province Applied Basic Research Program (Grant No.201901D111178) 2021 Shanxi Postgraduate Innovation Project (Grant No.2021Y601) 

主　　题：rotating packed bed Fe2+-EDTA sulfate radical hydroxyl radical NO removal efficiency 

摘      要：Nitric oxide being a major gas pollutant has attracted much attention and various technologies have been developed to reduce NO emission to preserve the *** persulfate oxidation technology is a workable and effective choice for wet flue gas denitrification due to its high efficiency and green ***,NO absorption rate is limited and affected by mass transfer limitation of NO and aqueous persulfate in traditional *** this study,a rotating packed bed(RPB)was employed as a gas-liquid absorption device to elevate the NO removal efficiency(η_(NO))by aqueous persulfate((NH_(4))_(2)S_(2)O_(8))activated by ferrous ethylenediaminetetraacetate(Fe^(^(2+))-EDTA).The experimental results regarding the NO absorption were obtained by investigating the effect of various operating parameters on the removal efficiency of NO in *** the concentration of(NH_(4))_(2)S_(2)O_(8) and liquid-gas ratio could promoted the oxidation and absorption of NO while theη_(NO) decreased with the increase of the gas flow and NO *** addition,improving the high gravity factor increased theη_(NO) and the total volumetric mass transfer coefficient(K_(G)α )which raise theη_(NO) up to more than 75%under the investigated *** observations proved that the RPB can enhance the gas-liquid mass transfer process in NO *** correlation formula between K_(G)α and the influencing factors was determined by regression calculation,which is used to guide the industrial scale-up application of the system in NO *** presence of O_(2) also had a negative effect on the NO removal process and through electron spin resonance spectrometer detection and product analysis,it was revealed that Fe^(2+)-EDTA activated(NH_(4))2S_(2)O_(8) to produce•SO_(4)^(-),•OH and•O_(2)^(-),played a leading role in the oxidation of NO,to produce NO_(3)^(-)as the final *** obtained results demonstrated a good applicable potential of RPB/PS/Fe^(2+)-EDTA in the