title: Numerical evaluation of the effectiveness of NO2 and N2O5 generation during the NO ozonation process.
abstract: Wet scrubbing combined with ozone oxidation has become a promising technology for simultaneous removal of SO2 and NOx in exhaust gas. In this paper, a new 20-species, 76-step detailed kinetic mechanism was proposed between O3 and NOx. The concentration of N2O5 was measured using an in-situ IR spectrometer. The numerical evaluation results kept good pace with both the public experiment results and our experiment results. Key reaction parameters for the generation of NO2 and N2O5 during the NO ozonation process were investigated by a numerical simulation method. The effect of temperature on producing NO2 was found to be negligible. To produce NO2, the optimal residence time was 1.25sec and the molar ratio of O3/NO about 1. For the generation of N2O5, the residence time should be about 8sec while the temperature of the exhaust gas should be strictly controlled and the molar ratio of O3/NO about 1.75. This study provided detailed investigations on the reaction parameters of ozonation of NOx by a numerical simulation method, and the results obtained should be helpful for the design and optimization of ozone oxidation combined with the wet flue gas desulfurization methods (WFGD) method for the removal of NOx.
authors.affiliation: Department of Environment Engineering, Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Engineering Research Center of Industrial Boiler, Furnace Flue Gas Pollution Control, Hangzhou 310058, China. Electronic address: haiqiangwang@zju.edu.cn.
authors.forename: Haiqiang
authors.initials: H
authors.lastname: Wang
authors.affiliation: Department of Environment Engineering, Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Engineering Research Center of Industrial Boiler, Furnace Flue Gas Pollution Control, Hangzhou 310058, China.
authors.forename: Zhuokai
authors.initials: Z
authors.lastname: Zhuang
authors.affiliation: Department of Environment Engineering, Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Engineering Research Center of Industrial Boiler, Furnace Flue Gas Pollution Control, Hangzhou 310058, China.
authors.forename: Chenglang
authors.initials: C
authors.lastname: Sun
authors.affiliation: Department of Environment Engineering, Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Engineering Research Center of Industrial Boiler, Furnace Flue Gas Pollution Control, Hangzhou 310058, China.
authors.forename: Nan
authors.initials: N
authors.lastname: Zhao
authors.affiliation: Department of Environment Engineering, Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Engineering Research Center of Industrial Boiler, Furnace Flue Gas Pollution Control, Hangzhou 310058, China.
authors.forename: Yue
authors.initials: Y
authors.lastname: Liu
authors.affiliation: Department of Environment Engineering, Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Engineering Research Center of Industrial Boiler, Furnace Flue Gas Pollution Control, Hangzhou 310058, China. Electronic address: zbwu@zju.edu.cn.
authors.forename: Zhongbiao
authors.initials: Z
authors.lastname: Wu
mesh_terms: D000393:Air Pollutants / Q000737:chemistry*; D008962:Models, Theoretical; D009569:Nitric Oxide / Q000737:chemistry*; D009585:Nitrogen Dioxide / Q000032:analysis*; D009589:Nitrogen Oxides / Q000032:analysis*; D010084:Oxidation-Reduction; D010126:Ozone / Q000737:chemistry*; D001335:Vehicle Emissions / Q000032:analysis*
chemical_list: D000393:Air Pollutants; D009589:Nitrogen Oxides; D001335:Vehicle Emissions; D009569:Nitric Oxide; D010126:Ozone; C010125:nitrogen pentoxide; D009585:Nitrogen Dioxide
keywords: In-situ IR spectra; N(2)O(5); NO; Numerical simulation; O(3)