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浙江大学学报(工学版)
J4  2009, Vol. 43 Issue (5): 948-952    DOI: 10.3785/j.issn.1008-973X.2009.05.031
能源与环境工程     
KMnO4/NaOH溶液吸收SO2/NO的动力学研究
钟毅,高翔,骆仲泱,倪明江,岑可法
（浙江大学 能源清洁利用国家重点实验室,浙江 杭州 310027）
Absorption kinetics of SO2/NO in KMnO4/NaOH solutions
ZHONG Yi, GAO Xiang, LUO Zhong-yang, NI Ming-jiang, CEN Ke-fa
(State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China)
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摘要：

在典型湿法烟气脱硫系统运行条件下,研究了平面传质搅拌反应器中KMnO4/NaOH溶液同时吸收SO2和NO的动力学,确定了反应级数、反应速率常数以及活化能.实验结果表明,NO的吸收速率随着入口NO分压和KMnO4浓度的增加而提高.在吸收剂溶液中加入NaOH可以提高NO的吸收速率,烟气中O2的体积分数对于NO和SO2的吸收速率几乎没有影响.当同时吸收烟气中的SO2和NO时,SO2会降低NO的吸收速率,而NO对SO2的吸收速率几乎没有影响.在KMnO4/NaOH溶液中NO的吸收速率对NO相间浓度和KMnO4浓度均为一级反应,平均反应速率常数为5.79×103 m3/(mol•s),活化能为26.85 kJ/mol.
Abstract:

In the typical operation conditions of wet flue gas desulfurization (WFGD) system, the absorption kinetics of NO and SO2 in KMnO4/NaOH solutions were studied in a stirred reactor with plain mass transfer interface. And the reaction order, reaction rate constant and activation energy were determined. The NO absorption rate increases with the increase of  NO partial pressure in the inlet flue gas as well as the KMnO4 concentration in the solutions. The addition of NaOH into the KMnO4 solutions increases the NO absorption rate. The O2 in the flue gas has no obvious effect on the absorption rate of NO and SO2. In the process of simultaneous absorption of SO2 and NO in the flue gas, the existence of SO2  decreases the NO absorption rate, while the existence of NO has no effect on the SO2 absorption rate. The NO absorption rate in KMnO4/NaOH solutions is one order dependent on both the NO interfacial concentration and the KMnO4 concentration. The average reaction rate constant is 5.79×103 m3/(mol•s) and the activation energy is 26.85 kJ/mol．
出版日期: 2009-11-18
:  X701.3  
基金资助:

“十一五”国家科技支撑计划资助项目（2006BAA01B04）；新世纪优秀人才支持计划资助项目（NCET-06-0513）.
通讯作者: 高翔，男，教授，博导.     E-mail: xgao@cmee.zju.edu.cn
作者简介: 钟毅（1977－），男，江西于都人，博士生，从事大气污染物控制研究.
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引用本文:

钟毅, 高翔, 骆仲泱, 等. KMnO4/NaOH溶液吸收SO2/NO的动力学研究[J]. J4, 2009, 43(5): 948-952.

ZHONG Yi, GAO Xiang, JIA Zhong-Yang, et al. Absorption kinetics of SO2/NO in KMnO4/NaOH solutions. J4, 2009, 43(5): 948-952.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2009.05.031    或    http://www.zjujournals.com/eng/CN/Y2009/V43/I5/948

［1］ MAKANSI J. Will combined SO2/NOx processes find a niche in the market ［J］. Power, 1990, 134(9): 2628．
［2］ KOBAYASHI H, TAKEZAWA N, NIKI T. Removal of nitrogen oxides with aqueous solutions of inorganic and organic reagents ［J］. Environmental Science and Technology, 1977, 11: 190192．
［3］ SADA E, KUMAZAWA H, HAYAKAWA N. Absorption of NO in aqueous solutions of KMnO4 ［J］. Chemical Engineering Science, 1977, 32: 11711175．
［4］ UCHIDA S, KOBAYASHI T, KAGEYAMA S. Absorption of nitrogen monoxide into aqueous KMnO4/NaOH and Na2SO3/FeSO4 solutions ［J］. Industrial and Engineering Chemistry Process Design and Development, 1983, 22: 323329．
［5］ CHU H, LI S Y, CHIEN T W. The absorption kinetics of NO from flue gas in a stirred tank reactor with KMnO4/NaOH solutions ［J］. Journal of Environmental Science and Health, 1998, A33: 801827．
［6］ BROGREN C, KARLSSON H, BJERLE I. Absorption of NO in an alkaline solution of KMnO4 ［J］. Chemical Engineering Technology, 1997, 20(6): 396402．
［7］ CHU H, CHIEN T W, LI S Y. Simultaneous absorption of SO2 and NO from flue gas with KMnO4/NaOH solutions ［J］. Science of the Total Environment, 2001, 275(1-3): 127135．
［8］ 俞成丙,刘伟平. 碱性高锰酸钾溶液湿法脱硝氮氧化物废气的实践［J］. 安全与环境学报, 2006, 6(3): 9092．
YU Cheng-bing, LIU Wei-ping. Treatment of waste gas containing NOx with wet method ［J］. Journal of Safety and Environment, 2006, 6(3): 9092．
［9］ CHU H, CHIEN T W, TWU B W. Simultaneous absorption of SO2 and NO in a stirred tank reactor with NaClO2/NaOH solutions ［J］. Water, Air and Soil Pollution, 2003, 143(1-4): 337350．
［10］ SADA E, KUMAZAWA H, KUDO I, et al. Absorption of NO in aqueous mixed solutions of NaClO2 and NaOH ［J］. Chemical Engineering Science, 1978, 33: 315318．
［11］ SHI Y, LITTLEJOHN D, CHANG S G. Kinetics of NO absorption in aqueous iron (II) bis (2,3-dimercapto-1-propanesulfonate) solutions using a stirred reactor ［J］. Industrial & Engineering Chemistry Resource, 1996, 35(5): 16681672．
［12］ DANCKWERTS P V. Gas-liquid reaction ［M］. New York: McGraw-Hill Press, 1970: 116128．
［13］ ONDA K, SADA E, KOBAYASHI T, et al. Salting-out parameters of gas solubility in aqueous salt solutions ［J］. Journal of Chemical Engineering of Japan, 1970a, 3(1): 1824．
［14］ ONDA K, SADA E, KOBAYASHI T, et al. Solubility of gases in aqueous solutions of mixed salts ［J］. Journal of Chemical Engineering of Japan, 1970b, 3(2): 137142．
［15］ PERRY R H, GREEN D W. Perrys chemical engineers handbook ［M］. 7th ed. Beijing: Science Press, 2001．
［16］ 傅献彩,沈文霞,姚天扬. 物理化学［M］. 4版. 北京：高等教育出版社, 1990．
［17］ BROGREN C, KARLSSON H T, BJERLE I. Absorption of NO in an alkaline solution of KMnO4 ［J］. Chemical Engineering Technology, 1997, 20(6): 396402．
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