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No And No2 Modeling For Diesel Oxidation Catalyst At Different Thermal Aging Levels, Keqin Zhou
No And No2 Modeling For Diesel Oxidation Catalyst At Different Thermal Aging Levels, Keqin Zhou
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Different DOC modeling methods are analyzed and compared. Detailed reaction mechanisms of DOC reaction are discussed and a new NO and NO2 modeling technique is proposed. Experiments are conducted measuring downstream DOC NO and NOx . DOC out NO and NO2 concentrations are modeled as a function of DOC temperature. A robust model is built such that with the input of real time NOx and DOC temperature information, DOC-out NO and NO2 concentrations can be precisely predicted.
As is true with many catalysts, the DOC thermally ages as it operates, which reduces the thermal effectiveness level of the catalyst. This …