Skip to main content
SpringerLink
Log in

DE-NOx/CO Performance According to Ag Loading Amount and Support Type of H2-SCR

  • Engine and Emissions, Fuels and Lubricants
  • Published:
International Journal of Automotive Technology Aims and scope Submit manuscript

Abstract

This study aims to investigate the NOx/CO reduction characteristics of harmful gases according to the loading amount of active Ag, which plays the most important role in H2-SCR, and the type of support. H2-SCR with Ag loaded on support of TiO2 was reduced to Ag+ at about 140 °C in AgO oxide, and H2-SCR with Ag loaded on support of Al2O3 was reduced to Ag clusters (Agnδ+) at about 260 °C in AgO oxide. Because it is more unstable than AgO oxide, it promoted the chemical reaction of Ag. 0.5Ag/TiO2 H2-SCR showed the highest NOx conversion rate of about 18% at 200 °C, and the window width was also widened. 2Ag/Al2O3 H2-SCR improved the low-temperature activity of the catalyst due to its large specific surface area and the loading amount of active catalyst Ag. Although the harmful gas reduction performance has decreased significantly compared to the active material Pt used in the H2-SCR, research on active materials considering the performance the improvement and economic feasibility must be continued.

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

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9

Similar content being viewed by others

Data availability

No data was used for the research described in the article.

References

  • Association for Emissions Control by Catalysis (AECC). (2020). EURO 7/VII Emission Standards. AECC position paper.

  • Burch, R., & Coleman, M. D. (2002). An investigations of promoter effects in the reduction of NO by H2 under lean-burn conditions. J. Catalysis, 208(2), 435–447.

    Article  Google Scholar 

  • Cao, L., Wang, Q., & Yang, J. (2020). Ultrafine Pt particle directed by polyvinypyrrolidone on zeolite beta as an efficient low-temperature H2-SCR catalyst. J. Environmental Chemical Engineering, 8(1), 103631.

    Article  Google Scholar 

  • Costa, C. N., & Efstathiou, A. M. (2007). Mechanistic aspects of the H2-SCR of NO on a novel Pt/MgO-CeO2 catalyst. The J. Physical Chemistry C, 111(7), 3010–3020.

    Article  Google Scholar 

  • Costa, C. N., Stanthopoulos, V. N., Belessi, V. C., & Efstathiou, A. M. (2001). An Investigation of the NO/H2/O2(Lean-deNOx) Reaction on a Highly Active and Selective Pt/LaMnO Catalyst. Catalysts Journal of Catalysis, 197(2), 350–364.

    Article  Google Scholar 

  • Guan, Y., Lv, Q., Wang, B., & Che, D. (2021). Review on the selective catalytic reduction NOx with H2 by using novel catalysts. J. Environmental Chemical Engineering, 9(6), 106770.

    Article  Google Scholar 

  • Hu, Z., Yong, X., Li, D., & Yang, R. T. (2020). Synergism between palladium and nickel on Pd-Ni/TiO2 for H2-SCR: A transient DRIFTS study. J. Catalysis, 381, 204–214.

    Article  Google Scholar 

  • Karamitros, D., & Klotsakis, G. (2017). Model-based optimization of catalyst zoning on SCR-coated particulate flters. Chemical Engineering Science, 173, 514–524.

    Article  Google Scholar 

  • Kim, G. J., Shin, J. H., Kim, S. B., & Hong, S. C. (2023). The role of Pt valence state and La doping on titanium supported Pt-La/TiO2 catalyst for catalytic reduction with H2. Applied Surface Science., 608, 155040.

    Article  Google Scholar 

  • Kim, J., Ha, K., & Seo, G. (2014). Selective catalytic reduction of NO by H2 over Pt-MnOx/ZrO2-SiO2 catalyst. Korean Chemical Engineering Research, 52(4), 443–450.

    Article  Google Scholar 

  • Kim, S. S., Choi, H. J., & Hong, S. C. (2010). A Study on reaction characteristics of H2 SCR using Pt/TiO2 catalyst. Applied Chemical Engineering, 21(1), 18–23.

    Google Scholar 

  • Li, L., Wu, P., Yu, Q., Wu, G., & Guan, N. (2010). Low temperature H2-SCR over platinum catalysts supported on Ti-containing MCM-41. Applied Catalysis B: Environmental, 94(3–4), 254–262.

    Article  Google Scholar 

  • Liu, W., Gao, Z., Sun, M., Gao, J., Wang, L., Zhao, X., Yang, R., & Yu, L. (2022). One-pot synthesis of CrαMnβCeTiOx mixed oxides as NH3-SCR catalysts with enhanced low-temperature catalytic activity and sulfur resistance. Chemical Engineering Science, 251, 117450.

    Article  Google Scholar 

  • Liu, Z., Jia, B., Zhang, Y., & Haneda, M. (2020). Engineering the metal-support interaction on Pt/TiO2 catalyst to boost the H2-SCR of NOx. Industrial & Engineering Chemistry Research, 59(31), 13916–13922.

    Article  Google Scholar 

  • Lv, H., Hua, X., Xie, W., Hu, Q., Wu, J., & Guo, R. (2018). Promotion effect of H2 pretreatment on CeO2 catalyst for NH3-SCR. Journal of Rare Earths, 36(7), 708–714.

    Article  Google Scholar 

  • Machida, M., & Watanbe, T. (2004). Effect of Na-addition on catalytic activity of Pt-ZSM-5 for low-temperature NO-H2-O2 reactions. Applied Catalysis B: Environmental, 52(4), 281–286.

    Article  Google Scholar 

  • Monuko, D. P. (2007). Relationship between specific area and pore dimension of high porosity nanoporous silicon-Model and experiment. Phys. Stal. Sol. (a), 204, 2319–2328.

    Article  Google Scholar 

  • Naomi, N., Gonzalez, G., Jose, L. C., Marcos, P., Beatriz, Z., Jorge, F. M., Gustavo, A. F., Maria, E. H. T., Tamara, V., Jose, S., & Jose, M. J. (2020). Improved NOx reduction using C3H8 and H2 with Ag/Al2O3 catalysts promoted with Pt and WOx. Catalysts, 10, 1–23.

    Google Scholar 

  • Patel, V. K., & Sharma, S. (2021). Effect of oxide support on palladium based catalysts for NO reduction by H2-SCR. Catalysis Today, 375, 591–600.

    Article  Google Scholar 

  • Savva, Z., Petallidou, K. C., Damaskinos, C. M., Olympiou, G. G., Stathopoulos, V. N., & Efstathiou, A. M. (2021). H2-SCR of NOx on low-SSA CeO2-supported Pd: The effect of Pd particles size. Appleid Catalysis a: General, 615, 118062.

    Article  Google Scholar 

  • Schott, F. J. P., Balle, P., Adler, J., & Kureti, S. (2009). Reduction of NOx by H2 on Pt/WO3/ZrO2 catalyst in oxygen-rich exhaust. Applid Catalysis b: Environmental, 87(1–2), 18–29.

    Article  Google Scholar 

  • Seo, C. K. (2021). Characteristics of harmful gases of H2-SCR catalysts for domestic and industrial boilers. Korean Society for Power System Engineering, 25(4), 62–68.

    Article  Google Scholar 

  • Seo, C. K. (2022). Improvement of NOx and CO reduction performance at low temperature of H2-SCR catalyst. International Journal of Automotive Technology, 23, 1509–1515.

    Article  Google Scholar 

  • Seo, C. K. (2023). Harmful gas reduction characteristics using precious metal Pt and Pd of H2-SCR. Journal of Power System Engineering, 27(6), 30–37.

    Article  Google Scholar 

  • Seo, C. K., & Choi, B. C. (2015). Physicochemical characteristics according to aging of Fe-zeolite and V2O5-WO3-TiO2 SCR for diesel engines. Jpurnal of Industrial and Engineering Chemistry, 25, 239–249.

    Article  Google Scholar 

  • Sjövall, H., Blint, R. J., & Olsson, B. L. (2009). Detailed kinetics modeling of NH3 SCR over Cu-ZSM-5. Applied Catalysis b: Environmental, 92(1–2), 138–153.

    Article  Google Scholar 

  • Wang, X., Wang, X., Yu, H., & Wang, X. (2019). The functions of Pt located at different positions of HZSM-5 in H2-SCR. Chemical Engineering J., 355, 470–477.

    Article  Google Scholar 

  • Wei, X., Zhao, R., Chu, B., Xie, S., Qin, Q., Li, L., Zhao, S., Li, B., & Dong, L. (2022). Significantly enhanced activity and SO2 resistance of Zr-modified CeTiOx catalyst for low-temperature NH3-SCR by H2 reduction treatment. Molecular CatalYsis, 518, 112069.

    Article  Google Scholar 

  • Xu, G., Ma, J., Wang, L., Liu, J., Yu, Y., & He, H. (2019). Insight into the origin of sulfur tolerance of Ag/Al2O3 in the H2–C3H6-SCR of NOx. Applied Catalysis b: Environmental, 244, 909–918.

    Article  Google Scholar 

  • Xu, G., Wang, H., Yu, Y., & He, H. (2021). Role of silver species in H2-NH3-SCR of NOx over Ag/Al2O3 catalysts: Operando spectroscopy and DFT CALCULATIONS. Journal of Catalysis, 395, 1–9.

    Article  Google Scholar 

  • Xue, Y., Sun, W., Wang, Q., Cao, L., & Yang, J. (2018). Sparsely loaded Pt/MIL-96(Al) MOFs catalyst with enhanced activity for H2-SCR in a gas diffusion reactor under 80℃. Chemical Engineering J., 335, 612–620.

    Article  Google Scholar 

  • Yokota, K., Fukui, M., & Tanake, T. (1997). Catalytic removal of nitric oxide with hydrogen and carbon monoxide in the presence of excess oxygen. Applied Surface Science, 121, 273–277.

    Article  Google Scholar 

  • Yu, Q., Richter, M., Li, L., Kong, F., Wu, G., & Guan, N. (2010). The promotional effect of Cr on catalytic activity of Pt/ZSM-35 for H2-SCR in excess oxygen. Catlysis Communications, 11(11), 955–959.

    Article  Google Scholar 

  • Zhang, X., Wang, X., Zhao, X., Xu, Y., Gao, H., & Zhang, F. (2014). An investigation on N2O formation route over Pt/HY in H2-SCR. Chemical Engineering J., 252, 288–297.

    Article  Google Scholar 

  • Zhang, X., Wang, X., Zhao, X., Xu, Y., & LiuYu, Y. Q. (2015). Promotion effect of tungsten on the activity of Pt/HZSM-5 for H2-SCR. Chemical Engineering J., 260, 419–426.

    Article  Google Scholar 

  • Zhang, X., Zhang, X., Yang, X., Chen, Y., Hu, X., & Wu, X. (2021). CeMn/TiO2 catalyst prepared by different methods for enhanced low-temperature NH3-SCR catalytic performance. Chemical Engineering Science, 238, 116588.

    Article  Google Scholar 

  • Zhang, W., Wei, H., Su, R., Yang, X., Li, Z., Shna, Q., & Zhang, F. (2022). Study on corrosion and wear behavior mechanisms of reactor material in metastannic acid synthesis. Metals, 12(12), 2045.

    Article  Google Scholar 

  • Zhang, Y., Xu, S., Wang, Y., & Liu, Z. (2023). Selective catalytic reduction of NOx by H2 over Na modified Pt/TiO2 catalyst. International Journal of Hydrogen Energy, 48(43), 16267–16278.

    Article  Google Scholar 

  • Zhu, N., Lian, Z., Zhang, Y., Shan, W., & He, H. (2019). The promotional effect of H2 reduction treatment on the low-temperature NH3-SCR activity of Cu/SAPO-18. Applied Surface Scinece, 483, 536–544.

    Article  Google Scholar 

Download references

Acknowledgements

This research was funded by Howon University.

Author information

Authors and Affiliations

  1. Department of Automotive & Mechanical Engineering, Howon University, 64, Howondae 3-gil, Impi-myeon, Gunsan-si, Jeollabuk-do, 54058, Republic of Korea

    Choong-kil Seo

Authors
  1. Choong-kil Seo
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Choong-kil Seo.

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.

Rights and permissions

Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Seo, Ck. DE-NOx/CO Performance According to Ag Loading Amount and Support Type of H2-SCR. Int.J Automot. Technol. (2024). https://doi.org/10.1007/s12239-024-00088-6

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1007/s12239-024-00088-6

Keywords

Search

Navigation