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Separation Science and Technology Volume 48, 2013 - Issue 18
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ABSORPTION

The Absorption Kinetics of NO into Weakly Acidic NaClO Solution

Rui-tang Guo School of Energy Source and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, P. R. China; Shanghai Engineering Research Center of Power Generation Environment Protection, Shanghai, P. R. ChinaCorrespondence[email protected]
,
Wei-guo Pan School of Energy Source and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, P. R. China; Shanghai Engineering Research Center of Power Generation Environment Protection, Shanghai, P. R. China
,
Xiao-bo Zhang School of Energy Source and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, P. R. China; Shanghai Engineering Research Center of Power Generation Environment Protection, Shanghai, P. R. China
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Hong-jian Xu School of Energy Source and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, P. R. China; Shanghai Engineering Research Center of Power Generation Environment Protection, Shanghai, P. R. China
,
Qiang Jin SEC-IHI Power Generation Environment Protection Engineering Co. Ltd., Shanghai, P. R. China; Shanghai Engineering Research Center of Power Generation Environment Protection, Shanghai, P. R. China
,
Cheng-gang Ding SEC-IHI Power Generation Environment Protection Engineering Co. Ltd., Shanghai, P. R. China; Shanghai Engineering Research Center of Power Generation Environment Protection, Shanghai, P. R. China
&
Shi-yi Guo SEC-IHI Power Generation Environment Protection Engineering Co. Ltd., Shanghai, P. R. China; Shanghai Engineering Research Center of Power Generation Environment Protection, Shanghai, P. R. China
 show all
Pages 2871-2875 | Received 08 Aug 2012, Accepted 20 May 2013, Published online: 08 Nov 2013
 
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Abstract

NO is a major air pollutant from coal-fired power plants. A combined removal of SO2 and NO is a prospective process. In this paper, the absorption kinetics of NO into weakly acidic NaClO solution was studied in a stirred tank reactor. It was proven that the absorption process occurred under the fast pseudo-mth reaction regime, and the reaction was found to be first-order with respect to both NO and NaClO. When the initial pH value of NaClO solution is 5.5, it has the best performance for NO absorption. The frequency factor and the average activation energy of this reaction were 7.96 × 108 m3/(mol s) and 28.15 kJ/mol, respectively. The absorption rate of NO increased with increasing reaction temperature.

ACKNOWLEDGEMENTS

This work was supported by the Scientific Problem Tackling Program of the Science and Technology Commission of Shanghai Municipality (11dz2281700), the Fifth Key Subject of Shanghai Education Commission (J51304), Innovation Program of Shanghai Municipal Education Commission (10YZ155), Choice and Cultivation of Excellent Young Teachers Program of Shanghai Municipal Education Commission (sdl09008).

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