Formation of NO from N2/O2 Mixtures in a Flow Reactor: Toward an Accurate Prediction of Thermal NO

Maria Abian; María U. Alzueta; Peter Glarborg

doi:10.1002/kin.20929

journal article Jun 05, 2015

Formation of NO from N2/O2 Mixtures in a Flow Reactor: Toward an Accurate Prediction of Thermal NO

Maria Abian María U. Alzueta Peter Glarborg

International Journal of Chemical Kinetics Vol. 47 No. 8 pp. 518-532 · Wiley

View at Publisher Save 10.1002/kin.20929

Abstract

ABSTRACTWe have conducted flow reactor experiments for NO formation from N2/O2 mixtures at high temperatures and atmospheric pressure, controlling accurately temperature and reaction time. Under these conditions, atomic oxygen equilibrates rapidly with O2. The experimental results were interpreted by a detailed chemical model to determine the rate constant for the reaction N2 + O ⇌ NO + N (R1). We obtain k1 = 1.4 × 1014 exp(−38,300/T) cm3 mol−1 s−1 at 1700–1800 K, with an error limit of ±30%. This value is 25% below the recommendation of Baulch et al. for k1, while it corresponds to a value k1b of the reverse reaction 25% above the Baulch et al. evaluation. Combination of our results with literature values leads to a recommended rate constant for k1b of 9.4 × 1012 T0.14 cm3 mol−1 s−1 over 250–3000 K. This value, which reconciles the differences between the forward and reverse rate constant, is recommended for use in kinetic modeling.

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Details

Published: Jun 05, 2015
Vol/Issue: 47(8)
Pages: 518-532
License: View

Authors

M

Maria Abian

Aragón Institute of Engineering Research (I3A) University of Zaragoza Campus Rio Ebro 50018 Zaragoza Spain

M

María U. Alzueta

Aragón Institute of Engineering Research (I3A) University of Zaragoza Campus Rio Ebro 50018 Zaragoza Spain

P

Peter Glarborg

DTU Chemical Engineering Technical University of Denmark 2800 Lyngby Denmark

Cite This Article

Maria Abian, María U. Alzueta, Peter Glarborg (2015). Formation of NO from N2/O2 Mixtures in a Flow Reactor: Toward an Accurate Prediction of Thermal NO. International Journal of Chemical Kinetics, 47(8), 518-532. https://doi.org/10.1002/kin.20929

Formation of NO from N2/O2 Mixtures in a Flow Reactor: Toward an Accurate Prediction of Thermal NO

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