Particulate Matter Trapping and Oxidation on a Catalyst Membrane

Event
SAE 2010 World Congress & Exhibition
Authors Abstract
Content
Particulate matter (PM) trapping and oxidation in regeneration on the surface of a diesel particulate catalyst-membrane filter (DPMFs) were investigated in detail using an all-in-focus optical microscope. The DPMF consists of two-layer sintered filters, where a SiC-nanoparticle membrane (made from a mixture of 80 nm and 500 nm powders) covers the surface of a conventional SiC filter. Using a visualization experiment, it was shown that PMs were trapped homogeneously along fine surface pores of the membrane's top surface, whereas in the regeneration process, the particulates in contact with the membrane may have been oxidized with some catalytic effect of the SiC nanoparticles. A soot cake was reacted continuously on the nanoparticles since pushed by a gas flow. The oxidation temperature of particulate trapped on the SiC-nanoparticle membrane was about 75 degrees lower than that on the conventional diesel particulate filters (DPF) without a catalyst. The activation energy of reaction on the nanoparticle membrane became lower than that on the conventional SiC-DPF without catalyst. Consequently, the SiC-nanoparticles membrane filters had some catalytic activity similar to that of the conventional catalyst DPF.
Meta TagsDetails
DOI
https://doi.org/10.4271/2010-01-0808
Pages
12
Citation
Karin, P., and Hanamura, K., "Particulate Matter Trapping and Oxidation on a Catalyst Membrane," SAE Int. J. Fuels Lubr. 3(1):368-379, 2010, https://doi.org/10.4271/2010-01-0808.
Additional Details
Publisher
Published
Apr 12, 2010
Product Code
2010-01-0808
Content Type
Journal Article
Language
English