NO Removal from Simulated Diesel Engine Exhaust Gas by Cyclic Scrubbing Using NaClO2 Solution in a Rotating Packed Bed Reactor

Experiments were conducted to remove NO from simulated flue gas in a rotating packed bed (RPB) reactor with NaClO2 as wet scrubbing oxidant and diesel exhaust gas as carrier gas. The effects of various operating parameters (rotational speed, solution pH, NaClO2 concentration, liquid-gas ratio, and N...

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Bibliographic Details
Published in:Journal of chemistry 2019-01, Vol.2019 (2019), p.1-9
Main Authors: Kaixuan, Ning, Deping, Sun, Liguo, Song, Tian, Lan, Xinxiang, Pan, Jingming, Dong, Yang, Shao-long, Yu, Gao, Han, Zhi-tao, Zhijun, Yan
Format: Article
Language:English
Subjects:
Carrier gases
Caustic soda
Chemical engineering
Chemistry
Diesel engines
Efficiency
Exhaust gases
Experiments
Flue gas
Gases
Hazardous materials
Packed beds
Pollutants
Reactors
Rotation
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Summary:Experiments were conducted to remove NO from simulated flue gas in a rotating packed bed (RPB) reactor with NaClO2 as wet scrubbing oxidant and diesel exhaust gas as carrier gas. The effects of various operating parameters (rotational speed, solution pH, NaClO2 concentration, liquid-gas ratio, and NO and SO2 concentrations) on NO removal performance were investigated preliminarily. The results showed that with the increase of rotational speed, oxidant concentration, and liquid-gas ratio, NO removal efficiency increased obviously. NO removal efficiency increased largely with the decrease of solution pH, and a complete removal of NO could be attained at pH 4. NO concentration imposed little effect on NO removal efficiency while coexisting SO2 in exhaust gas could enhance NOx removal greatly.
ISSN:2090-9063
2090-9071
DOI:10.1155/2019/3159524