Nitric oxide removal from flue gas by ferrate(Ⅵ)/urea solutions  

作　　者：Feiqiang He Xinyu Zhu Lirong Zhong Zhuyao Li Yong Qian 

机构地区：[1]School of Chemistry,Biology and Materials Science,East China University of Technology,Nanchang 330013,China

出　　处：《Chinese Chemical Letters》2021年第10期3175-3179,共5页中国化学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China (Nos.21808031 and 11905029)。

摘　　要：In this work,nitric oxide absorption process by using ferrate(Ⅵ)/urea was proposed.The respective influences of the four factors including pH value,ferrate(Ⅵ) concentration,urea concentration,and the temperature and the interactive function of them on nitric oxide absorption were investigated with the response surface methodology(RSM) by central composite design(CCD).The proposed model system showed good consistency with the experiment results,by a correlated coefficient(R^(2)) of 0.9875.In addition,the interactive influences between any two variables were elaborated through analysis of response surface.The optimal parameters were found at pH of 7.1,reaction temperature of 43.8C,urea concentration of 6.3 wt%,ferrate(Ⅵ) concentration of 4.4 mmol/L for 85.2% NO absorption.Finally,Ncontaining product analysis shows that nitric oxide was primarily transformed to N2 and NO_(3)^(-).

关 键 词：UREA REMOVAL Ferrate(Ⅵ) Nitric oxide 

分 类 号：TQ028.17[化学工程] X701[环境科学与工程—环境工程]