Experimental Study on Removal of NO by Using Co(en)3+3 and Urea Complexation

doi:10.12068/j.issn.1005-3026.2016.08.011

Journal of Northeastern University Natural Science ›› 2016, Vol. 37 ›› Issue (8): 1113-1117.DOI: 10.12068/j.issn.1005-3026.2016.08.011

• Materials & Metallurgy • Previous Articles Next Articles

Experimental Study on Removal of NO by Using Co(en)³⁺₃ and Urea Complexation

QIN Qin¹， WANG Ning¹， SUN Ming-xue¹， LIU Jie²

1.School of Metallurgy， Northeastern University， Shenyang 110819， China; 2. LOI Thermprocess Co.， Ltd.， Tianjin 300192， China.

Received:2015-05-15 Revised:2015-05-15 Online:2016-08-15 Published:2016-08-12
Contact: QIN Qin
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Abstract

Abstract: Experiments on flue gas denitrification by using Co(en)³⁺₃ and urea complexation were performed in a semi-batch bubbling reactor. The results show that the oxidation degree of NO₂， the solubility of NO， and the removal rate of NO are increased by adding Co(en)³⁺₃ in the urea solution. The removal rate of NO increases with increasing oxygen concentration， Co(en)³⁺₃concentration and NO inlet concentration， while the removal rate of NO increases slightly with the increase of urea concentration. Increasing gas flow is not conducive to the absorption of NO. The absorption liquid maintains the high removal rate of NO when the pH value is 10.4 and the temperature is between 60 and 70℃.

Key words: flue gas denitrification, wet process, Co(en)³⁺₃, urea, removal rate of NO

CLC Number:

X701

QIN Qin， WANG Ning， SUN Ming-xue， LIU Jie. Experimental Study on Removal of NO by Using Co(en)³⁺₃ and Urea Complexation[J]. Journal of Northeastern University Natural Science, 2016, 37(8): 1113-1117.

References

[1]梁俊宁，陈洁，卢立栋，等.煤化工行业氮氧化物排放系数研究［J］.中国环境科学，2014，34(4):862-868.(Liang Jun-ning，Chen Jie，Lu Li-dong，et al.Nitrogen oxides emission coefficient of coal chemical industry［J］.China Environmental Science，2014，34(4):862-868.)
[2]肖春英.解读2014版锅炉大气污染物排放标准［J］.科技与企业，2014，17(9):155-155.(Xiao Chun-ying.Reading the standards of 2014 boiler air pollutant emission［J］.Science and Technology Enterprise，2014，17(9):155-155.)
[3]白云峰，李永旺，吴树志，等.KMnO₄/CaCO₃协同脱硫脱硝实验研究［J］.煤炭学报，2008，33(5):575-578.(Bai Yun-feng，Li Yong-wang，Wu Shu-zhi，et al.Simultaneous absorption of SO₂ and NO from flue gas with KMnO₄/CaCO₃slurry［J］.Journal of China Coal Society，2008，33(5):575-578.)
[4]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(1/2/3):127-135.
[5]Fang P，Cen C，Tang Z，et al.Simultaneous removal of SO₂ and NO_○xby wet scrubbing using urea solution［J］.Chemical Engineering Journal，2011，168(1):52-59.
[6]Kim H，Han J，Kawaguchi A I，et al.Simultaneous removal of NO_○x and SO₂ by a nonthermal plasma hybrid reactor［J］.Energy & Fuels，2007，21(1):141-144.
[7] Long X L，Li W，Xiao W D，et al.Novel homogeneous catalyst system for the oxidation of concentrated ammonium sulfite［J］.Journal of Hazardous Materials，2006，129(1/2/3):260-265.
[8] Li Y，Zhong W，Ju J，et al.Experiment on simultaneous absorption of NO and SO₂from sintering flue gas by oxidizing agents of KMnO₄/NaClO［J］. International Journal of Chemical Reactor Engineering，2014，12(1):539-547.
[9] Dong X，Zhang Y，Zhou J，et al.Fe(II)EDTA-NO reduction coupled with Fe(II)EDTA oxidation by a nitrate- and Fe(III)-reducing bacterium［J］.Bioresource Technology，2013，138(2):339-344.

Experimental Study on Removal of NO by Using Co(en)³⁺₃ and Urea Complexation

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