Simultaneous Removal of NO and SO2 Using Aqueous Peroxymonosulfate with Coactivation of Cu2+/Fe3+ and High Temperature

被引：99

作者：

Liu, Yangxian ^{[1
]}

Wang, Yan ^{[1
]}

机构：

[1] Jiangsu Univ, Sch Energy & Power Engn, Zhenjiang 212013, Jiangsu, Peoples R China

来源：

AICHE JOURNAL | 2017年 / 63卷 / 04期

基金：

中国国家自然科学基金;

关键词：

peroxymonosulfate (PMS); Cu2+/Fe3+ and high temperature activation; SO2; NO; sulfate and hydroxyl free radicals; FLUE-GAS; NITRIC-OXIDE; ABSORPTION; DEGRADATION; OXIDATION; DESULFURIZATION; DECOMPOSITION; PERSULFATE; KINETICS; DIOXIDE;

D O I：

10.1002/aic.15503

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A novel process on simultaneous removal of NO and SO2 using aqueous peroxymonosulfate (PMS) with synergic activation of Cu2+/Fe3+ and high temperature in an impinging stream reactor is developed for the first time. Effects of PMS concentration, Cu2+/Fe3+ concentration, reaction temperature, solution pH, flue gas flow, liquid-gas ratio, gas components, and inorganic ions on NO/SO2 removals were investigated. Active species and products were determined by electron spin resonance spectroscopy and ion chromatography. Removal pathways of NO/SO2 were revealed, and mass transfer-reaction kinetics of NO removal was studied. The optimal experimental conditions are obtained. H2SO4 and HNO3 are the main products. It is found that there is a clear synergy between Cu2+/Fe3+ and high temperature for activating PMS. SO4- and similar to OH are found to be the main oxidants for NO removal. NO removals belong to pseudo-first fast reactions in the two investigated oxidation systems. Besides, the kinetic parameters are also measured. (C) 2016 American Institute of Chemical Engineers AIChE J, 63: 1287-1302, 2017

引用

页码：1287 / 1302

页数：16

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