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Enhancement mechanism of SO2 removal with calcium hydroxide in the presence of NO2

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Abstract

The enhancement mechanism of SO2 removal by the presence of NO2 under low temperature and humid conditions was studied in a fixed bed reactor system. The presence of NO2 in the flue gas can enhance SO2 removal. The interaction between SO2 and NO2 in gas phase could not explain the effect of NO2 on SO2 removal under low-temperature and humid conditions. When Ca(NO3)2 and Ca(NO2)2 as additive were added on the surface of sorbent, the desulfurization activity of sorbent decreased. However, the sorbent pretreated by NO2 for a moment has higher SO2 removal. The oxidization of SO 2−3 to SO 2−4 and the evolution of sorbent surface structure in the presence of NO2 can explain the enhancement of SO2 removal by the presence of NO2. HSO −3 and SO −3 reacted with NO2 to form sulfate, which can accelerate the hydrolysis of SO2. The reaction between NO2 and Ca(OH)2 can make the unreacted sorbet under the SO2 removal product exposed to the reactant gas.

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References

  1. H. Zhang, H. L. Tong, S. J. Wang, Y. Zhuo, C. H. Chen and X. C. Xu, Ind. Eng. Chem. Res., 45, 6099 (2006).

    Article  CAS  Google Scholar 

  2. H. Chu, T. W. Chien and S. Y. Li, Sci. Total Environ., 275, 127 (2001).

    Article  CAS  Google Scholar 

  3. G. B. Zhao, S. V. B. J. Garikipati, X. Hu, M. D. Argyle and M. Radosz, AIChE J., 51, 1800 (2005).

    Article  CAS  Google Scholar 

  4. Z. H. Wang, J. H. Zhou, Y. Q. Zhu, Z. C. Wen, J. Z. Liu and K. F. Cen, Flue Process. Technol., 88, 817 (2007).

    Article  CAS  Google Scholar 

  5. R. K. Lyon, J. A. Cole, J. C. Kramlich and S. L. Chen, Combust. Flame., 81, 30 (1990).

    Article  CAS  Google Scholar 

  6. P. Chu and G. T. Rochelle, JAPCA., 39, 175 (1989).

    CAS  Google Scholar 

  7. K. T. Lee, S. Bhatia and A. R. Mohamed, Chem. Eng. Sci., 60, 3419 (2005).

    Article  CAS  Google Scholar 

  8. T. Ishizuka, H. Kabashima, T. Yamaguchi, K. Tanabe and H. Hattori, Environ. Sci. Technol., 34, 2799 (2000).

    Article  CAS  Google Scholar 

  9. H. Tsuchiai, T. Ishizuka, H. Nakamura, T. Ueno and H. Hattori, Ind. Eng. Chem. Res., 35, 851 (1996).

    Article  CAS  Google Scholar 

  10. W. J. O’Dowd, J. M. Markussen, H. W. Pennline and K. P. Resnik, Ind. Eng. Chem. Res., 33, 2749 (1994).

    Article  Google Scholar 

  11. M. Bausach, M. Pera-Titus, C. Fité, F. Cunill, J. F. Izquierdo, J. Tjero and M. Iborra, Ind. Eng. Chem. Res., 44, 9094 (2005).

    Article  Google Scholar 

  12. C. F. Liu and S.M. Shih, Ind. Eng. Chem. Res., 45, 8765 (2006).

    Article  CAS  Google Scholar 

  13. Y. Li, C. Loh, N. Matsushima, M. Nishioka and M. Sadakata, Energy Fuels., 16, 155 (2002).

    Article  CAS  Google Scholar 

  14. G. Q. Chen, J. H. Gao, S. Wang, X. L. Fu, L. L. Xu and Y. K. Qin, Ind. Eng. Chem. Res., 49, 1450 (2010).

    Article  CAS  Google Scholar 

  15. J. H. Gao, G. Q. Chen, J. X. Liu, X. L. Fu, J. M. Gao, Q. Du and Y. K. Qin, Energy Fuels., 24, 5454 (2010).

    Article  CAS  Google Scholar 

  16. M. A. Siddiqi, J. Petersen and K. Lucas, Ind. Eng. Chem. Res., 42, 1406 (2003).

    Article  CAS  Google Scholar 

  17. C. S. Ho and S. M. Shih, Can. J. Chem. Eng., 71, 934 (1993).

    Article  CAS  Google Scholar 

  18. M. M. Yung, E. M. Holmgreen and U. S. Ozkan, J. Catal., 247, 356 (2007).

    Article  CAS  Google Scholar 

  19. I. Dahlan, K. T. Lee, A. H. Kamaruddin and A. R. Mohamed, J. Hazard. Mater., 166, 1556 (2009).

    Article  CAS  Google Scholar 

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Authors and Affiliations

  1. School of Energy Science and Engineering, Harbin Institute of Technology, 92, West Dazhi Street, Harbin, 150001, Heilongjiang Province, P. R. China

    Jihui Gao, Guoqing Chen, Yijun Yin, Shaohua Wu & Yukun Qin

  2. ShanDong Electric Power Engineering Consulting Institute Corp., Ltd. (SDEPCI), 106, Minziqian Road, Jinan, 250013, Shandong Province, P. R. China

    Xiaolin Fu

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  1. Jihui Gao
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  2. Guoqing Chen
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  3. Xiaolin Fu
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  4. Yijun Yin
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  5. Shaohua Wu
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  6. Yukun Qin
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Correspondence to Jihui Gao.

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Gao, J., Chen, G., Fu, X. et al. Enhancement mechanism of SO2 removal with calcium hydroxide in the presence of NO2 . Korean J. Chem. Eng. 29, 263–269 (2012). https://doi.org/10.1007/s11814-011-0157-7

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  • DOI: https://doi.org/10.1007/s11814-011-0157-7

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