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Emission Control Science and Technology

, Volume 4, Issue 4, pp 300–311 | Cite as

Dust Filtration Influence on the Performance of Catalytic Filters for NOx Reduction

  • Giovanny Mateus
  • Martin Meiller
  • Karel Soukup
  • Andreas Hornung
Article

Abstract

Particle matter and NOx emission are the most significant pollutants of combustion processes, particularly so for the conversion of biomass to energy. Currently, reduction of these pollutants is addressed through particle filters and catalytic processes. Therefore, catalytic activation of filter materials seems to be a practical way to reduce NOx and fine particle emission (PM10) simultaneously at small and medium furnaces. Regularly used methods to achieve this rely on the impregnation process. However, alternatives for materials with low wettability are needed. An alternative developed and discussed in this article consists of simultaneous synthesis of filter and catalyst through hard template sintering, where the catalyst is integrated into the porous medium during the fabrication of the filter. This sintering method provides an integrated catalytic filter. Through this method, up to 2% of catalyst loading was achieved in the synthesis of four catalytic filters. The performance of these new catalysts was evaluated under downscale industrial conditions and compared with an ordinary impregnated catalyst. Finally, a dust aging treatment was applied on the catalysts in order to see the long-term influence of fine dust particles on the NOx conversion.

Keywords

De-NOx Particle filter SCR catalyst Low temperature Dust emissions Monolithic catalyst 

Nomenclature

Ea

Activation energy [J]

A

Adsorption coefficient [−]

Ѳ

Coverage [−]

u

Face velocity [m/s]

k

Permeability [m2]

ε

Porosity [−]

P

Pressure [mBar]

T

Temperature [°C]

β

Temperature coefficient [−]

Fl

Volumetric flow [L/min]

μi

Molar fraction of species i [−]

Notes

Acknowledgments

The Bavarian State Ministry for Economic Affairs and Media, Energy and Technology is gratefully acknowledged for the financial support of the project.

Compliance with Ethical Standards

The authors declare that they have no competing interests.

Supplementary material

40825_2018_102_MOESM1_ESM.docx (279 kb)
ESM 1 (DOCX 278 kb)

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Copyright information

© Springer Nature Switzerland AG 2018

Authors and Affiliations

  • Giovanny Mateus
    • 1
    • 2
  • Martin Meiller
    • 1
  • Karel Soukup
    • 3
  • Andreas Hornung
    • 1
    • 2
    • 4
  1. 1.Fraunhofer UMSICHT–Institute Branch Sulzbach-RosenbergSulzbach-RosenbergGermany
  2. 2.Faculty of Engineering, Department of Chemical and Biological EngineeringFriedrich-Alexander University Erlangen-NurembergErlangenGermany
  3. 3.Centre for Textural StudiesInstitute of Chemical Process Fundamentals of the CASPrague 6Czech Republic
  4. 4.School of Chemical EngineeringUniversity of BirminghamBirminghamUK

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