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Low Temperature Performance and Compressive Strength Characteristics of an Extruded Homogeneous SCR

  • Received : 2015.04.16
  • Accepted : 2015.06.30
  • Published : 2015.08.31

Abstract

The purpose of this study is to identify the low temperature performance and strength characteristics of V-based extruded homogeneous SCR. The extruded catalyst and the coated catalyst showed 50% and 27% of NOx conversion performance respectively at about $210^{\circ}C$ of catalyst temperature, so the extruded SCR was higher in de-NOx performance than the coated SCR especially at a low temperature zone. The compressive strength of the Enhanced Extrusion #1, in which the content of promoters such as silica, clay, glass fiber and binder was optimized, was a 120% improvement compared to the Extrusion#1 catalyst, higher than the coated SCR.

Keywords

References

  1. C. K. Seo, H. N. Kim, B. C. Choi, M. T. Lim, C. H. Lee and C. B. Lee, 2011, "De-NOx Characteristics of a Combined System of LNT and SCR Catalysts according to Hydrothermal Aging and Sulfur Poisoning", Catalysis Today, Vol. 164, pp. 507-514. https://doi.org/10.1016/j.cattod.2010.10.010
  2. C. K. Seo, 2014, "The Effect of Additive Catalyst according to Thermal Aging of Vanadia SCR", Journal of Korean Society for Power System Engineering", Vol. 18, No. 3, pp. 14-19.
  3. B. Scarnegie, W. R. Miller, B. Ballmert, W. Doelling and S. Fischer, "DPF/SCR Resulting Targeting US2007 and Euro 4/5 HD Emissions", SAE Tech. paper, 2003-01-0774.
  4. H. Schedel, S. Fishcer and B. Ballmert, "Durability of Extruded Homogenous SCR Catalyst", SAE Tech. paper, 2004-01-0075, 2004.
  5. R. Wusirika, S. Ogunwumi and W. Lucas, "Extruded Zeolite Catalyst for Lean Exhaust Application", SAE Tech. paper, 2005-01-1118.
  6. J. Muench, R. Leppelt and R. Dotzel, "Extruded Zeolite Based Honeycomb Catalyst for NOx Removal from Diesel Exhaust", SAE Tech. paper 2008-01-1024.