화학공학소재연구정보센터
Korean Journal of Chemical Engineering, Vol.36, No.3, 377-384, March, 2019
Regeneration of commercial SCR catalyst deactivated by arsenic poisoning in coal-fired power plants
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Arsenic species, which are inevitable components in flue gas from the coal combustion process, will result in severe deactivation of selective catalytic reduction (SCR) catalysts. In this paper, a novel method is proposed to regenerate the arsenic-poisoned commercial V2O5-MoO3/TiO2 catalyst collected from coal-fired power plants, including ammonia washing, H2 reduction, and air calcination. Activity tests indicated that the proposed method could recover the catalyst activity more than 96% of the fresh catalyst. Furthermore, detailed characterizations results indicated that this regeneration method could not only effectively remove the arsenic species, but also recover the active constituents of the catalysts to a considerable level. The proposed method offers a feasible strategy for the regeneration of poisoned commercial SCR catalysts and can effectively reduce the total denitrification cost for coal-fired power plants.
  1. Seo PW, Kim SS, Hong SC, Korean J. Chem. Eng., 27(4), 1220 (2010)
  2. Xu L, Niu S, Lu C, Wang D, Zhang K, Li J, Korean J. Chem. Eng., 34(5), 1576 (2017)
  3. Feng H, Wang C, Huang Y, Korean J. Chem. Eng., 34(11), 2832 (2017)
  4. Kim MH, Nam IS, Korean J. Chem. Eng., 18(5), 725 (2001)
  5. Lee MW, Ye BR, Jeong BR, Chun HY, Lee DH, Park SS, Lee HS, Kim HD, Korean J. Chem. Eng., 35(10), 1988 (2018)
  6. Lai JK, Wachs IE, ACS Catal., 8, 6537 (2018)
  7. Liu Y, Zhao J, Lee JM, ChemCatChem., 10, 1499 (2018)
  8. Xu L, Wang C, Chang H, Wu Q, Zhang T, Li J, Environ. Sci. Technol., 52, 7064 (2018)
  9. Chang H, Shi C, Li M, Zhang T, Wang C, Jiang L, Wang X, Chin. J. Catal., 39, 710 (2018)
  10. Li X, Li X, Zhu T, Peng Y, Li J, Hao J, Environ. Sci. Technol., 52, 8578 (2018)
  11. Guo RT, Wang QS, Pan WG, Chen QL, Ding HL, Yin XF, Yang NZ, Lu CZ, Wang SX, Yuan YC, J. Mol. Catal. A-Chem., 407, 1 (2015)
  12. Bartholomew CH, Appl. Catal. A: Gen., 212, 17 (2001)
  13. Zheng YJ, Jensen AD, Johnsson JE, Ind. Eng. Chem. Res., 43(4), 941 (2004)
  14. Zhou ZJ, Liu XW, Liao ZQ, Shao HZ, Hu YC, Xu YS, Xu MH, Chem. Eng. J., 304, 121 (2016)
  15. Senior CL, Lignell DO, Sarofim AF, Combust. Flame., 147, 209 (2009)
  16. Kong M, Liu Q, Wang X, Ren S, Yang J, Zhao D, Xi W, Yao L, Catal. Commun., 721, 121 (2015)
  17. Peng Y, Si WZ, Li X, Luo JM, Li JH, Crittenden J, Hao JM, Appl. Catal. B: Environ., 181, 692 (2016)
  18. Peng Y, Li JH, Si WZ, Luo JM, Wang Y, Fu J, Li X, Crittenden J, Hao JM, Appl. Catal. B: Environ., 168, 195 (2015)
  19. Zhichun S, Duan W, Xiaodong W, Yang J, J. Rare Earths, 28, 727 (2010)
  20. Li X, Li J, Peng Y, Si W, He X, Hao J, Environ. Sci. Technol., 49, 9971 (2015)
  21. Li X, Li JH, Peng Y, Chang HZ, Zhang T, Zhao S, Si WZ, Hao JM, Appl. Catal. B: Environ., 184, 246 (2016)
  22. Li X, Li J, Peng Y, Li X, Li K, Hao J, J. Phys. Chem. C, 120, 18005 (2016)
  23. Fang N, Guo J, Shu S, Luo H, Li J, Chu Y, J. Taiwan Inst. Chem. E., 93, 277 (2018)
  24. Li X, Li XS, Li JH, Hao JM, J. Hazard. Mater., 318, 615 (2016)
  25. Xue YD, Zhang Y, Zhang Y, Zheng SL, Zhang Y, Jin W, Chem. Eng. J., 325, 544 (2017)
  26. Yu Y, He C, Chen J, Yin L, Qiu T, Meng X, Catal. Commun., 39, 78 (2013)
  27. Peng Y, Li J, Shi W, Xu J, Hao J, Environ. Sci. Technol., 46, 12623 (2012)
  28. Busca G, Ramis G, Appl. Surf. Sci., 27, 114 (1986)
  29. Martin C, Martin I, Delmoral C, Rives V, J. Catal., 146(2), 415 (1994)
  30. Parry EP, J. Catal., 2, 371 (1963)
  31. Emeis CA, J. Catal., 141, 347 (1993)
  32. Barzetti T, Selli E, Moscotti D, Forni L, J. Chem. Soc.-Faraday Trans., 92, 1401 (1996)
  33. Peng Y, Li J, Si W, Luo J, Dai Q, Luo X, Liu X, Hao J, Environ. Sci. Technol., 48, 13895 (2014)
  34. Vittadini A, Casarin M, Selloni A, J. Phys. Chem. B, 109(5), 1652 (2005)
  35. Puselj M, Ban Z, Grdenic D, Z. Anorg. Allg. Chem., 437, 289 (1977)
  36. Seo PW, Lee JY, Shim KS, Hong SH, Hong SC, Hong SI, J. Hazard. Mater., 165(1-3), 39 (2009)
  37. Topsoe NY, Topsoe H, Dumesic JA, J. Catal., 151(1), 226 (1995)
  38. Topsoe NY, Dumesic JA, Topsoe H, J. Catal., 151(1), 241 (1995)
  39. Shen M, Li C, Wang J, Xu L, Wang W, Wang J, RSC Adv., 5, 35155 (2015)
  40. Chen L, Li J, Ge M, J. Phys. Chem. C, 113, 21177 (2009)