(575h) Dynamic Regeneration of NOx Storage Catalyst - Modeling Study

Current research extends the knowledge of the regeneration mechanism of periodically operated NOx-storage catalytic converters (lean NOx traps, LNTs). This advance makes possible to develop more accurate mathematical models of the chemical processes taking place in the converter, which are now able to describe not only the quantity and selectivity of reaction products, but also the effects of dynamically altered inlet conditions. These effects could not be simulated in detail using previous models. This study focuses on the differences in the qualitative performance of several reaction mechanisms for the LNT regeneration, and particularly on their ability to describe the effects of regeneration length and inlet gas composition on the conversion and selectivity of NOx reduction.

References:

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