Springer Nature is making SARS-CoV-2 and COVID-19 research free. View research | View latest news | Sign up for updates

The enhancement of NH3-SCR performance for CeO2 catalyst by CO pretreatment

  • 28 Accesses

Abstract

CO pretreatment was found to effectively improve the SCR performance of CeO2, with over 90% at about 300 °C. The larger specific area and the decrease of CeO2 crystallization indicated the modification of the surface structure after CO pretreatment. Abundant Ce3+ species and active oxygen, better reducibility, and the higher surface adsorption capacity were mainly responsible for its enhanced SCR performance. DRIFT analysis revealed the presumed coexistence of two reaction routes that the L-H mechanism was related to the reaction temperature, while the reaction rate of E-R route was almost directly proportional to the NO concentration at a certain temperature, based on the kinetic calculation. In addition, the CO-pretreated CeO2 also exhibited a better poisoning tolerance for SO2 and H2O and excellent thermal stability and circularity.

The process of NH3-SCR reaction over CeO2-CO catalyst.

This is a preview of subscription content, log in to check access.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10
Fig. 11
Fig. 12
Fig. 13
Fig. 14
Fig. 15

References

  1. Boningari T, Ettireddy P, Somogyvari A, Liu Y, Vorontsov A, McDonald CA, Smirniotis PG (2015) Influence of elevated surface texture hydrated titania on Ce-doped Mn/TiO2 catalysts for the low-temperature SCR of NOx under oxygen-rich conditions. J Catal 325:145–155

  2. Boningari T, Somogyvari A, Smirniotis PG (2017) Ce-based catalysts for the selective catalytic reduction of NOx in the presence of excess oxygen and simulated diesel engine exhaust conditions. Ind Eng Chem Res 56(19):5483–5494

  3. Busca G, Lietti L, Ramis G, Berti F (1998) Chemical and mechanistic aspects of the selective catalytic reduction of NOx by ammonia over oxide catalysts: a review. Appl Catal B Environ 18(1–2):1–36

  4. Castellino F, Jensen AD, Johnsson JE, Fehrmann R (2009) Influence of reaction products of K-getter fuel additives on commercial vanadia-based SCR catalysts: Part I. Potassium phosphate. Appl Catal B Environ 86(3–4):196–205

  5. Chen L, Li J, Ge M (2010a) DRIFT study on cerium-tungsten/titiania catalyst for selective catalytic reduction of NOx with NH3. Environ Sci Technol 44(24):9590–9596

  6. Chen L, Li J, Ge M, Zhu R (2010b) Enhanced activity of tungsten modified CeO2/TiO2 for selective catalytic reduction of NOx with ammonia. Catal Today 153(3–4):77–83

  7. Chen L, Li J, Ablikim W, Wang J, Chang H, Ma L, Xu J, Ge M, Arandiyan H (2011) CeO2-WO3 mixed oxides for the selective catalytic reduction of NOx by NH3 over a wide temperature range. Catal Lett 141(12):1859–1864

  8. Chen J, Chen Y, Zhou M, Huang Z, Gao J, Ma Z, Chen J, Tang X (2017) Enhanced performance of ceria-based NOx reduction catalysts by optimal support effect. Environ Sci Technol 51:473–478

  9. Damyanova S, Perez CA, Schmal M, Bueno JMC (2002) Characterization of ceria-coated alumina carrier. Appl Catal A Gen 234:271–282

  10. Deng S, Meng T, Xu B, Gao F, Ding Y, Yu L, Fan Y (2016) Advanced MnOx/TiO2 catalyst with preferentially exposed anatase {001} facet for low-temperature SCR of NO. ACS Catal 6(9):5807–5815

  11. Ding ZY, Li L, Wade D, Gloyna EF (1998) Supercritical water oxidation of NH3 over a MnO2/CeO2 catalyst. Ind Eng Chem Res 37(5):1707–1716

  12. Dong L, Zhang B, Tang C, Li B, Zhou L, Gong F, Sun B, Gao F, Dong L, Chen Y (2014) Influence of CeO2 modification on the properties of Fe2O3-Ti0.5Sn0.5O2 catalyst for NO reduction by CO. Catal Sci Technol 4(2):482–493

  13. Dong WK, Park KH, Hong SC (2016) Enhancement of SCR activity and SO2 resistance on VOx/TiO2 catalyst by addition of molybdenum. Chem Eng J 284:315–324

  14. Gopal RA, Govindan M, Moon S (2018) Enhanced electro-reduction of NO to NH3 on Pt cathode at electro-scrubber. Environ Sci Pollut Res (in press)

  15. Gu T, Liu Y, Weng X, Wang H, Wu Z (2010) The enhanced performance of ceria with surface sulfation for selective catalytic reduction of NO by NH3. Catal Commun 12(4):310–313

  16. Guo RT, Zhou Y, Pan WG, Hong J, Zhen W, Jin Q, Ding C, Guo S (2013) Effect of preparation methods on the performance of CeO2/Al2O3 catalysts for selective catalytic reduction of NO with NH3. J Ind Eng Chem 19(6):2022–2025

  17. Guo RT, Zhen WL, Pan WG, Zhou Y, Hong J, Xu H, Jin Q, Ding C, Guo S (2014) Effect of Cu doping on the SCR activity of CeO2 catalyst prepared by citric acid method. J Ind Eng Chem 20(4):1577–1580

  18. Guo RT, Wang QS, Pan WG, Chen QL, Ding HL, Yin XF, Yang NZ, Lu CZ, Wang SX, Yuan YC (2015) The poisoning effect of heavy metals doping on Mn/TiO2 catalyst for selective catalytic reduction of NO with NH3. J Mol Catal A Chem 407:1–7

  19. Guo RT, Li MY, Sun P, Liu SM, Wang SX, Pan WG, Liu SW, Liu J, Sun X (2017a) The enhanced resistance to P species of an Mn-Ti catalyst for selective catalytic reduction of NOx with NH3 by the modification with Mo. RSC Adv 7:19912–19923

  20. Guo RT, Li MY, Sun P, Pan WG, Liu SM, Liu J, Sun X, Liu SW (2017b) Mechanistic investigation of the promotion effect of Bi modification on the NH3-SCR performance of Ce/TiO2 catalyst. J Phys Chem C 121:27535–27545

  21. Irfan MF, Goo JH, Kim SD (2008) Co3O4 based catalysts for NO oxidation and NOx reduction in fast SCR process. Appl Catal B Environ 78(3–4):267–274

  22. Jeong YE, Kumar PA, Ha HP, Lee K (2017) Highly active Sb-V-CeO2/TiO2 catalyst under low sulfur for NH3-SCR at low temperature. Catal Lett 147(2):1–14

  23. Jiang BQ, Wu ZB, Liu Y, Lee SC, Ho WK (2010) DRIFT study of the SO2 effect on low-temperature SCR reaction over Fe-Mn/TiO2. J Phys Chem C 114(11):4961–4965

  24. Kang M, Park ED, Kim JM, Yie JE (2007) Manganese oxide catalysts for NOx reduction with NH3 at low temperatures. Appl Catal A Gen 327(2):261–269

  25. Kwak JH, Tonkyn R, Tran D, Mei D, Cho SJ, Kovarik L, Lee JH, Peden CHJ, Szanyi J (2012) Size-dependent catalytic performance of CuO on γ-Al2O3: NO reduction versus NH3 oxidation. ACS Catal 2(7):1432–1440

  26. Li P, Xin Y, Li Q, Wang Z, Zhang Z, Zheng L (2012) Ce-Ti amorphous oxides for selective catalytic reduction of NO with NH3: confirmation of Ce-O-Ti active sites. Environ Sci Technol 46:9600–9605

  27. Lian Z, Liu F, He H (2014) Enhanced activity of Ti-modified V2O5/CeO2 catalyst for the selective catalytic reduction of NOx with NH3. Ind Eng Chem Res 53(50):19506–19511

  28. Liu F, He H (2010) Structure-activity relationship of iron titanate catalysts in the selective catalytic reduction of NOx with NH3. J Phys Chem C 114(40):16929–16936

  29. Liu Y, Gu T, Weng X, Wang Y, Wu Z, Wang H (2012) DRIFT studies on the selectivity promotion mechanism of Ca-modified Ce-Mn/TiO2 catalysts for low-temperature NO reduction with NH3. J Phys Chem C 116(31):16582–16592

  30. Liu K, Liu F, Xie L, Shan W, He H (2015) DRIFTS study of a Ce-W mixed oxide catalyst for the selective catalytic reduction of NOx with NH3. Catal Sci Technol 5(4):2290–2299

  31. Nelson AE, Schulz KH (2003) Surface chemistry and microstructural analysis of CexZr1-xO2-y model catalyst surfaces. Appl Surf Sci 210(3–4):206–221

  32. Peña DA, Uphade BS, Smirniotis PG (2004) TiO2-supported metal oxide catalysts for low-temperature selective catalytic reduction of NO with NH3: I. Evaluation and characterization of first row transition metals. J Catal 221(2):421–431

  33. Peng Y, Li J, Si W, Luo J, Dai Q, Luo X, Liu X, Hao J (2014) Insight into deactivation of commercial SCR catalyst by arsenic: an experiment and DFT study. Environ Sci Technol 48(23):13895–13900

  34. Putluru SSR, Schill L, Godiksen S, Poreddy R, Mossin S, Jensen AD, Fehrmann R (2016) Promoted V2O5/TiO2 catalysts for selective catalytic reduction of NO with NH3 at low temperatures. Appl Catal B Environ 183:282–290

  35. Roy S, Viswanath B, Hegde MS, Madras G (2008) Low-temperature selective catalytic reduction of NO with NH3 over Ti0.9M0.1O2-δ (M = Cr, Mn, Fe, Co, Cu). J Phys Chem C 112(15):6002–6012

  36. Shen Y, Zhu S, Tai Q, Shen S (2009) A novel catalyst of CeO2/Al2O3 for selective catalytic reduction of NO by NH3. Catal Commun 11:20–23

  37. Shu Y, Aikebaier T, Quan X, Chen S, Yu H (2014) Selective catalytic reaction of NOx with NH3 over Ce-Fe/TiO2-loaded wire-mesh honeycomb: resistance to SO2 poisoning. Appl Catal B Environ 150-151:630–635

  38. Topsøe NY (1994) Mechanism of the selective catalytic reduction of nitric oxide by ammonia elucidated by in situ on-line Fourier transform infrared spectroscopy. Science 265(5176):1217–1219

  39. Wallin M, Forser S, Thormählen P, Skoglundh M (2004) Screening of TiO2-supported catalysts for selective NOx reduction with ammonia. Ind Eng Chem Res 43(24):7723–7731

  40. Wang J, Lu P, Su W, Xing Y, Li R, Li Y, Zhu T, Yue H, Cui Y (2019) Study on the denitrification performance of FexLayOz/activated coke for NH3-SCR and the effect of CO escaped from activated coke at mid-high temperature on catalytic activity. Environ Sci Pollut Res 26:20248–20263

  41. Wijayanti K, Leistner K, Chand S, Kumarb A, Kamasamudramb K, Currierb NW, Yezeretsb A, Olsson L (2016) Deactivation of Cu-SSZ-13 by SO2 exposure under SCR conditions. Catal Sci Technol 6(8):2565–2579

  42. Wu Z, Jiang B, Liu Y, Wang H, Jin R (2007) DRIFT study of manganese/titania-based catalysts for low-temperature selective catalytic reduction of NO with NH3. Environ Sci Technol 41(16):5812–5817

  43. Xu H, Zhang Q, Qiu C, Lin T, Gong M, Chen Y (2012) Tungsten modified MnOx-CeO2/ZrO2 monolith catalysts for selective catalytic reduction of NOx with ammonia. Chem Eng Sci 76:120–128

  44. Yu L, Zhong Q, Zhang S (2014) The enhancement for SCR of NO by NH3 over the H2 or CO pretreated Ag/γ-Al2O3 catalyst. Phys Chem Chem Phys 16(24):12560–12566

  45. Yu L, Zhong Q, Deng Z, Zhang S (2016) Enhanced NOx removal performance of amorphous Ce-Ti catalyst by hydrogen pretreatment. J Mol Catal A Chem 423:371–378

  46. Yue H, Lu P, Su W, Xing Y, Li R, Wang J (2019) Simultaneous removal of NOx and Hg0 from simulated flue gas over CuaCebZrcO3/r-Al2O3 catalysts at low temperatures: performance, characterization, and mechanism. Environ Sci Pollut Res 26:13602–13618

  47. Zhang P, Pan WG, Guo RT, Liu S, Li M, Qin L, Pan X, Ye X (2018a) A study on simultaneous catalytic ozonation of Hg0 and NO using Mn-TiO2 catalyst at low flue gas temperatures. Chem Pap 72(6):1347–1361

  48. Zhang P, Pan WG, Guo RT, Zhu X, Liu J, Qin L, She X (2018b) The Mo modified Ce/TiO2 catalyst for simultaneous Hg0 oxidation and NO reduction. J Energ Inst 92:1313–1328

  49. Zhang P, Pan W, Guo R, Zhu X, Liu J, Qin L, She X (2019) The Mo modified Ce/TiO2 catalyst for simultaneous Hg0 oxidation and NO reduction. J Energy Inst 92:1313–1328

  50. Zhao B (2015) Experimental study on flue gas mercury oxidized by molybdenum modified catalysts. Huazhong University of Science and Technology, Wuhan

  51. Zi Z, Zhu B, Sun Y, Fang Q, Ge T (2019) Promotional effect of Mn modification on DeNOx performance of Fe/nickel foam catalyst at low temperature. Environ Sci Pollut Res (in press)

Download references

Funding

This work was supported by the Natural Science Foundation of China (11604244) and the Natural Science Foundation of China (21546014, 51974001, and No. 51704003).

Author information

Correspondence to Rui-tang Guo.

Ethics declarations

Conflict of interest

The authors declare that they have no conflict of interest.

Additional information

Publisher’s note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

HIGHLIGHTS

· CO pretreatment could effectively enhance the SCR performance of bare CeO2.

· The surface structure of pure CeO2 was probably modified after CO pretreatment.

· The reaction rate of L-H route was relevant to the reaction temperature, whereas that of E-R mechanism almost directly proportional to the NO concentration.

· CeO2-CO catalyst exhibited an excellent thermal and cyclic stability, and better resistance to SO2 and H2O poisoning.

Responsible editor: Santiago V. Luis

Rights and permissions

Reprints and Permissions

About this article

Verify currency and authenticity via CrossMark

Cite this article

Zhang, P., Guo, R., Wu, L. et al. The enhancement of NH3-SCR performance for CeO2 catalyst by CO pretreatment. Environ Sci Pollut Res (2020). https://doi.org/10.1007/s11356-020-07908-z

Download citation

Keywords

  • CO pretreatment
  • CeO2 catalyst
  • SCR
  • Promotion mechanism