Abstract
A global kinetic model was developed for co-oxidation of n-dodecane and NOx on state-of-the-art DOC. The model captures the impact of HC (0.1–1.8% C1) and NOx feed concentrations on the oxidation of n-dodecane. The oxidation activity of n-alkanes has a weak dependence on chain length when n > 10 [18], implying the general applicability of the model to catalytic oxidation of heavy chain n-alkanes. Reactor-based co-oxidation data of dodecane and NO has been presented to emphasize the coupling of homogeneous and heterogeneous reactions inside DOC. We highlight how this coupling influences the oxidation performance of DOC. Diesel oxidation was more self-inhibiting than dodecane oxidation due to unsaturated HCs, primarily aromatics. HC speciation data of diesel fuel or diesel engine exhaust showed clear evidence for the co-existence of alkanes and aromatics, both 1-ring and multi-ring aromatics. Diesel oxidation data showing self-inhibition can be described using model-based proxies for alkylbenzenes and heavy n-alkanes, each for each category.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
