2. High Porosity Cordierite Filter Development for Nox/Pm Reduction

  1. Manuel E. Brito,
  2. Peter Filip,
  3. Charles Lewinsohn,
  4. Ali Sayir,
  5. Mark Opeka and
  6. William M. Mullins
  1. Isabelle Melscoet-Chauvel1,
  2. Christophe Remy2 and
  3. Tinghong Tao3

Published Online: 26 MAR 2008

DOI: 10.1002/9780470291283.ch2

Developments in Advanced Ceramics and Composites: Ceramic Engineering and Science Proceedings, Volume 26, Number 8

Developments in Advanced Ceramics and Composites: Ceramic Engineering and Science Proceedings, Volume 26, Number 8

How to Cite

Melscoet-Chauvel, I., Remy, C. and Tao, T. (2005) High Porosity Cordierite Filter Development for Nox/Pm Reduction, in Developments in Advanced Ceramics and Composites: Ceramic Engineering and Science Proceedings, Volume 26, Number 8 (eds M. E. Brito, P. Filip, C. Lewinsohn, A. Sayir, M. Opeka and W. M. Mullins), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470291283.ch2

Author Information

  1. 1

    Coming Incorporated SP-DV-02–1 Corning, NY 14831 USA

  2. 2

    Coming S.A.S 7bis, Avenue de Valvins 77210 Avon FRANCE

  3. 3

    Coming Incorporated SP-DV-02–1 Coming, NY 14831 USA

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 2005

ISBN Information

Print ISBN: 9781574982619

Online ISBN: 9780470291283

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Keywords:

  • porosity;
  • microsaucture;
  • catalytic;
  • temperature;
  • geometry

Summary

This paper presents the latest progress in high porosity filter product development for the 4-way application as well as the corresponding property and performance attributes. Two new compositions, Dev-HP1 and Dev-HP2, at 72% porosity with median pore sizes of 17 μm and 20 μm are identified and under development. From composition development, narrow pore size distribution and good pore connectivity were achieved in comparison to the previous version of high porosity filters, Dev-EC, and also the standard commercial product, DuraTrap® CO. As a result, the pressure drop performance has been significantly improved while a high filtration efficiency of more than 95% has been preserved (artificial soot lab test). The detailed physical property and performance data for these two new 72% porosity filters (vs. Dev-EC and DuraTrap® CO) are discussed. It is anticipated that significantly improved pore microstructure and high wall permeability will allow high catalyst loading in the wall for the 4-way catalyst application.