Study of wet denitration in a rotating packed bed

被引：0
作者：
机构：
[1] Research Center of the Ministry of Education for High Gravity Engineering and Technology, State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing
来源：
Shao, Lei | 1600年 / Zhejiang University卷 / 28期
关键词：
Denitration efficiency; Ozonation; Rotating packed bed; Wet denitration;
D O I：
10.3969/j.issn.1003-9015.2014.05.034
中图分类号：
学科分类号：
摘要：
Nitrogen oxide (NOx) can significantly harm the environment and human body. With the enforcement of more stringent regulations, there is an urgent need to have a cost-effective denitration method. Simulated flue gas containing NOx (NO and air) was pre-oxidized by O3 and absorbed by NaOH or H2O2 solution in a rotating packed bed (RPB) in this study. The effects of different operation conditions and additives on denitration efficiency were investigated. It was found that denitration efficiency increases with increasing O3/NOx molar ratio, absorbent concentration and liquid/gas ratio, and increases at first and then decreases with increasing rotation speed. The optimum operation conditions were determined as O3/NOx molar ratio of 0.6, absorbent concentration of 0.025 mol·L-1, rotation speed of 800 r·min-1, and gas-liquid ratio of 14:1, and under above conditions, the denitration efficiency reaches 80% and 85% with NaOH and H2O2 as absorbents respectively. The addition of KMnO4 or H2O2 in NaOH absorbent has a positive effect on denitration.
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页码：1160 / 1165
页数：5
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