UV-Enhanced NaClO Oxidation of Nitric Oxide from Simulated Flue Gas

A wet de-NOx technique based on an UV-enhanced NaClO oxidation process was investigated for simulated flue gas of a diesel engine using a bench-scale reaction chamber. The effects of UV irradiation time, initial pH value, and available chlorine concentration of NaClO solution were studied, respectiv...

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Main Authors: Shao-long Yang, Zhi-tao Han, Jing-ming Dong, Zi-sheng Zheng, Xin-xiang Pan
Format: Article
Language:English
Published: Wiley 2016-01-01
Series:Journal of Chemistry
Online Access:http://dx.doi.org/10.1155/2016/6065019
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author Shao-long Yang
Zhi-tao Han
Jing-ming Dong
Zi-sheng Zheng
Xin-xiang Pan
author_facet Shao-long Yang
Zhi-tao Han
Jing-ming Dong
Zi-sheng Zheng
Xin-xiang Pan
author_sort Shao-long Yang
collection DOAJ
description A wet de-NOx technique based on an UV-enhanced NaClO oxidation process was investigated for simulated flue gas of a diesel engine using a bench-scale reaction chamber. The effects of UV irradiation time, initial pH value, and available chlorine concentration of NaClO solution were studied, respectively. The results showed that when the UV irradiation time was 17.5 min and the initial pH value of NaClO solution was 6, NO removal efficiency of UV/NaClO solution was increased by 19.6% compared with that of NaClO solution. Meanwhile, when the available chlorine concentration of NaClO solution decreased from 0.1 wt% to 0.05 wt%, the enhancement in NO removal efficiency of UV/NaClO solution increased from 19.6% to 24%, compared with that of NaClO solution. The reaction pathways of NaClO solution photolysis and NO removal by UV/NaClO process were preliminarily discussed. The results suggested that HOCl might be the most active species that released many UV-induced photooxidants through photolysis reactions, which played an important role in NO removal process.
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institution Kabale University
issn 2090-9063
2090-9071
language English
publishDate 2016-01-01
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series Journal of Chemistry
spelling doaj-art-3e74f55dd6b84a49a10bd52ce42c93692025-02-03T01:22:28ZengWileyJournal of Chemistry2090-90632090-90712016-01-01201610.1155/2016/60650196065019UV-Enhanced NaClO Oxidation of Nitric Oxide from Simulated Flue GasShao-long Yang0Zhi-tao Han1Jing-ming Dong2Zi-sheng Zheng3Xin-xiang Pan4Marine Engineering College, Dalian Maritime University, Dalian 116026, ChinaMarine Engineering College, Dalian Maritime University, Dalian 116026, ChinaMarine Engineering College, Dalian Maritime University, Dalian 116026, ChinaMarine Engineering College, Dalian Maritime University, Dalian 116026, ChinaMarine Engineering College, Dalian Maritime University, Dalian 116026, ChinaA wet de-NOx technique based on an UV-enhanced NaClO oxidation process was investigated for simulated flue gas of a diesel engine using a bench-scale reaction chamber. The effects of UV irradiation time, initial pH value, and available chlorine concentration of NaClO solution were studied, respectively. The results showed that when the UV irradiation time was 17.5 min and the initial pH value of NaClO solution was 6, NO removal efficiency of UV/NaClO solution was increased by 19.6% compared with that of NaClO solution. Meanwhile, when the available chlorine concentration of NaClO solution decreased from 0.1 wt% to 0.05 wt%, the enhancement in NO removal efficiency of UV/NaClO solution increased from 19.6% to 24%, compared with that of NaClO solution. The reaction pathways of NaClO solution photolysis and NO removal by UV/NaClO process were preliminarily discussed. The results suggested that HOCl might be the most active species that released many UV-induced photooxidants through photolysis reactions, which played an important role in NO removal process.http://dx.doi.org/10.1155/2016/6065019
spellingShingle Shao-long Yang
Zhi-tao Han
Jing-ming Dong
Zi-sheng Zheng
Xin-xiang Pan
UV-Enhanced NaClO Oxidation of Nitric Oxide from Simulated Flue Gas
Journal of Chemistry
title UV-Enhanced NaClO Oxidation of Nitric Oxide from Simulated Flue Gas
title_full UV-Enhanced NaClO Oxidation of Nitric Oxide from Simulated Flue Gas
title_fullStr UV-Enhanced NaClO Oxidation of Nitric Oxide from Simulated Flue Gas
title_full_unstemmed UV-Enhanced NaClO Oxidation of Nitric Oxide from Simulated Flue Gas
title_short UV-Enhanced NaClO Oxidation of Nitric Oxide from Simulated Flue Gas
title_sort uv enhanced naclo oxidation of nitric oxide from simulated flue gas
url http://dx.doi.org/10.1155/2016/6065019
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AT zhitaohan uvenhancednaclooxidationofnitricoxidefromsimulatedfluegas
AT jingmingdong uvenhancednaclooxidationofnitricoxidefromsimulatedfluegas
AT zishengzheng uvenhancednaclooxidationofnitricoxidefromsimulatedfluegas
AT xinxiangpan uvenhancednaclooxidationofnitricoxidefromsimulatedfluegas