International Journal of Automotive Engineering
Online ISSN : 2185-0992
Print ISSN : 2185-0984
ISSN-L : 2185-0992
Research Paper
Scanning Electron Microscopic Time-lapse Visualization of Ash Movement During Regeneration of Diesel Particulate Filters
Sattatad RodvannaMek SrilomsakMitsuhiro ShinshiKatsunori Hanamura
ジャーナル オープンアクセス

2020 年 11 巻 2 号 p. 14-21


A movement and oxidation behaviors of ash during partial oxidation of particulate matters (PMs) was investigated through time-lapse visualization utilizing a field-emission scanning electron microscope and thermogravimetric analysis (TGA). The fine primary ash particles consisted of elements such as zinc and phosphorus. The components of calcium, zinc, phosphorus, and sulfur were included in the large-scale ash particles. These ash particles were gradually moved as the PMs Cake layer shrunk during the regeneration of diesel particulate filters. In addition, ash particles distributed in PMs cake layer have contributed to an enhancement of oxidation rate of the PMs.

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