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International Journal of Automotive Technology 2008;9(4): 423-428. |
| MEASUREMENT OF SOOT OXIDATION WITH NO2-O2-H2O IN A FLOW REACTOR SIMULATING DIESEL ENGINE DPF |
| J. JUNG, J. H. LEE, S. SONG, K. M. CHUN |
| Yonsei University |
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| ABSTRACT |
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Understanding the mechanism of carbon oxidation is important for the successful modeling of diesel particulate filter regeneration. Characteristics of soot oxidation were investigated with carbon black (Printex-U). A flow reactor system that could simulate the condition of a diesel particulate filter and diesel exhaust gas was designed. Kinetic constants were derived and the reaction mechanisms were proposed using the experimental results and a simple reaction scheme, which approximated the overall oxidation process in TPO as well as CTO. From the experiments, the apparent activation energy for carbon oxidation with NO2-O2-H2O was determined to be 40 |
| Key Words:
Carbon oxidation, Constant temperature oxidation, Temperature programmed oxidation, Activation energy, DPF, Diesel engine |
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