Global kinetic model for lean NOx traps
作者： Louise Olsson , Richard J. Blint , Erik Fridell
DOI: 10.1021/IE0494059
关键词:
摘要: Modeling and flow reactor experiments are used to investigate the global kinetics for lean NOx traps (LNTs). Experiments were conducted with a Pt/Rh/BaO/Al2O3 model catalyst, inlet feed gas was switched between rich periods. It has previously been observed that NO oxidation NO2 is important storage, therefore mechanism on Pt/Al2O3 developed. This then in trap model, after parameters had adjusted match concentrations from catalyst. The mass transport of inside particles described by shrinking-core model. Further, it found two reaction steps needed storage order explain experimental observations: one step formation barium nitrates other loosely bound nitrites. Reaction added regeneration C3H6. tuned based s...
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