Skip to main content
Disciplines
Automotive Business IT + Informatics Construction + Real Estate Electrical Engineering + Electronics Energy + Sustainability Insurance + Risk Finance + Banking Management + Leadership Marketing + Sales Mechanical Engineering + Materials
Events
DE
EN
Books
Journals
Topic Page
Marketing
Start single access now
Access for companies
EXTENDED SEARCH
Log in
Top
International Journal of Automotive Technology

15-04-2024 | Engine and Emissions, Fuels and Lubricants

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

Author: Choong-kil Seo

Published in: International Journal of Automotive Technology

Log in

Activate our intelligent search to find suitable subject content or patents.

search-config
loading …

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.

Dont have a licence yet? Then find out more about our products and how to get one now:

Springer Professional "Technik"

Online-Abonnement

Mit Springer Professional "Technik" erhalten Sie Zugriff auf:

  • über 67.000 Bücher
  • über 390 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Maschinenbau + Werkstoffe




 

Jetzt Wissensvorsprung sichern!

inform now

Springer Professional "Wirtschaft+Technik"

Online-Abonnement

Mit Springer Professional "Wirtschaft+Technik" erhalten Sie Zugriff auf:

  • über 102.000 Bücher
  • über 537 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Finance + Banking
  • Management + Führung
  • Marketing + Vertrieb
  • Maschinenbau + Werkstoffe
  • Versicherung + Risiko

Jetzt Wissensvorsprung sichern!

inform now

ATZelectronics worldwide

ATZlectronics worldwide is up-to-speed on new trends and developments in automotive electronics on a scientific level with a high depth of information. 

Order your 30-days-trial for free and without any commitment.

inform now
Show more products
Literature
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.CrossRef
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.CrossRef
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.CrossRef
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.CrossRef
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.CrossRef
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.CrossRef
Karamitros, D., & Klotsakis, G. (2017). Model-based optimization of catalyst zoning on SCR-coated particulate flters. Chemical Engineering Science, 173, 514–524.CrossRef
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.CrossRef
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.CrossRef
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.
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.CrossRef
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.CrossRef
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.CrossRef
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.CrossRef
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.CrossRef
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.CrossRef
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.
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.CrossRef
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.CrossRef
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.CrossRef
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.CrossRef
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.CrossRef
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.CrossRef
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.CrossRef
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.CrossRef
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.CrossRef
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.CrossRef
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.CrossRef
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.CrossRef
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.CrossRef
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.CrossRef
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.CrossRef
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.CrossRef
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.CrossRef
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.CrossRef
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.CrossRef
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.CrossRef
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.CrossRef
Metadata
Title
DE-NOx/CO Performance According to Ag Loading Amount and Support Type of H2-SCR
Author
Choong-kil Seo
Publication date
15-04-2024
Publisher
The Korean Society of Automotive Engineers
Published in
International Journal of Automotive Technology
Print ISSN: 1229-9138
Electronic ISSN: 1976-3832
DOI
https://doi.org/10.1007/s12239-024-00088-6

Premium Partner

    Image Credits