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| The role of SiC foam conductive ceramic for purifying CO and HC of diesel exhaust |
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| 中国科学院金属研究所 |
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Cite this article:
. The role of SiC foam conductive ceramic for purifying CO and HC of diesel exhaust. Chin J Mater Res, 2004, 18(6): 611-616.
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Abstract SiC foam conductive ceramic with 3D reticulate structure was used as carrier of
catalyst for purifying CO and HC of diesel exhaust. The process of gas passing
through foam ceramic was simulated, and the effects of electric power, pulse duty
cycle on conversion of HC and CO and the character of light-off temperature with
electrical heating were investigated. The result showed that the 3D reticulate
structure of foam ceramic could increase the contact chance of gases with carrier,
and the electrical heating could increase the temperature of inlet gas, so the
conversions of HC and CO were improved at lower temperature. The pulse current
had stronger ability of heating than continuous current, and the capacity of heating
enhanced with the decrease of pulse duty cycle.
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Received: 29 December 2004
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