A shock tube study of the NH2 + NO2 reaction

S. Song; D. M. Golden; R. K. Hanson; C. T. Bowman

doi:10.1016/s1540-7489(02)80263-2

A shock tube study of the NH₂ + NO₂ reaction

S. Song, D. M. Golden, R. K. Hanson, C. T. Bowman

Department of Mechanical Engineering

Research output: Contribution to journal › Conference article › peer-review

11 Citations (Scopus)

Abstract

The overall rate coefficient and the branching ratio of the NH₂ + NO₂ reaction were determined in shock tube experiments. Benzylamine (C₆H₅CH₂NH₂) was used as a thermal source of the NH₂ radical. To obtain the overall rate coefficient, the NH₂ mole fraction was measured using frequency-modulation absorption spectroscopy. For the branching ratio determination, the IR emission from N₂O was monitored. During the N₂O emission experiments, the NO₂ mole fraction was measured simultaneously using a tunable diode laser. The measured species profiles were interpreted using a detailed 118-reaction mechanism, which was based on the reaction mechanism from our previous study of the NH₂ + NO reaction with added reactions involving N₂O and NO₂. The overall rate coefficient is (5.5 ± 0.8) × 10¹² cm³ mol^-1 s¹ in the temperature range, 1330-1527 K, and pressure range 1.31-1.49 bar. This value is 1.6 times the result of Glarborg et al. and 2.5 times that extrapolated from the expression reported by Park and Lin. The measured branching ratio for the N₂O+ H₂O product channel of the NH₂+NO₂ reaction was 0.17 ± 0.04 for the temperature range 1319-1493 K, which is consistent with the results of Park and Lin and Quandt and Hershberger at lower temperatures.

Original language	English
Pages (from-to)	2163-2170
Number of pages	8
Journal	Proceedings of the Combustion Institute
Volume	29
Issue number	2
DOIs	https://doi.org/10.1016/s1540-7489(02)80263-2
Publication status	Published - 2002
Event	30th International Symposium on Combustion - Chicago, IL, United States Duration: 2004 Jul 25 → 2004 Jul 30

Bibliographical note

Funding Information:
The authors thank John Barker for helpful discussions concerning use of the Multiwell code. Soonho Song thanks Gernot Friedrichs for assistance in improving the FM setup. This work was supported by the U.S. Department of Energy, Office of Basic Energy Sciences, Division of Chemical Sciences.

All Science Journal Classification (ASJC) codes

Chemical Engineering(all)
Mechanical Engineering
Physical and Theoretical Chemistry

Access to Document

10.1016/s1540-7489(02)80263-2

Cite this

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title = "A shock tube study of the NH2 + NO2 reaction",

abstract = "The overall rate coefficient and the branching ratio of the NH2 + NO2 reaction were determined in shock tube experiments. Benzylamine (C6H5CH2NH2) was used as a thermal source of the NH2 radical. To obtain the overall rate coefficient, the NH2 mole fraction was measured using frequency-modulation absorption spectroscopy. For the branching ratio determination, the IR emission from N2O was monitored. During the N2O emission experiments, the NO2 mole fraction was measured simultaneously using a tunable diode laser. The measured species profiles were interpreted using a detailed 118-reaction mechanism, which was based on the reaction mechanism from our previous study of the NH2 + NO reaction with added reactions involving N2O and NO2. The overall rate coefficient is (5.5 ± 0.8) × 1012 cm3 mol-1 s1 in the temperature range, 1330-1527 K, and pressure range 1.31-1.49 bar. This value is 1.6 times the result of Glarborg et al. and 2.5 times that extrapolated from the expression reported by Park and Lin. The measured branching ratio for the N2O+ H2O product channel of the NH2+NO2 reaction was 0.17 ± 0.04 for the temperature range 1319-1493 K, which is consistent with the results of Park and Lin and Quandt and Hershberger at lower temperatures.",

author = "S. Song and Golden, {D. M.} and Hanson, {R. K.} and Bowman, {C. T.}",

note = "Funding Information: The authors thank John Barker for helpful discussions concerning use of the Multiwell code. Soonho Song thanks Gernot Friedrichs for assistance in improving the FM setup. This work was supported by the U.S. Department of Energy, Office of Basic Energy Sciences, Division of Chemical Sciences.; 30th International Symposium on Combustion ; Conference date: 25-07-2004 Through 30-07-2004",

year = "2002",

doi = "10.1016/s1540-7489(02)80263-2",

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T1 - A shock tube study of the NH2 + NO2 reaction

AU - Song, S.

AU - Golden, D. M.

AU - Hanson, R. K.

AU - Bowman, C. T.

N1 - Funding Information: The authors thank John Barker for helpful discussions concerning use of the Multiwell code. Soonho Song thanks Gernot Friedrichs for assistance in improving the FM setup. This work was supported by the U.S. Department of Energy, Office of Basic Energy Sciences, Division of Chemical Sciences.

PY - 2002

Y1 - 2002

N2 - The overall rate coefficient and the branching ratio of the NH2 + NO2 reaction were determined in shock tube experiments. Benzylamine (C6H5CH2NH2) was used as a thermal source of the NH2 radical. To obtain the overall rate coefficient, the NH2 mole fraction was measured using frequency-modulation absorption spectroscopy. For the branching ratio determination, the IR emission from N2O was monitored. During the N2O emission experiments, the NO2 mole fraction was measured simultaneously using a tunable diode laser. The measured species profiles were interpreted using a detailed 118-reaction mechanism, which was based on the reaction mechanism from our previous study of the NH2 + NO reaction with added reactions involving N2O and NO2. The overall rate coefficient is (5.5 ± 0.8) × 1012 cm3 mol-1 s1 in the temperature range, 1330-1527 K, and pressure range 1.31-1.49 bar. This value is 1.6 times the result of Glarborg et al. and 2.5 times that extrapolated from the expression reported by Park and Lin. The measured branching ratio for the N2O+ H2O product channel of the NH2+NO2 reaction was 0.17 ± 0.04 for the temperature range 1319-1493 K, which is consistent with the results of Park and Lin and Quandt and Hershberger at lower temperatures.

AB - The overall rate coefficient and the branching ratio of the NH2 + NO2 reaction were determined in shock tube experiments. Benzylamine (C6H5CH2NH2) was used as a thermal source of the NH2 radical. To obtain the overall rate coefficient, the NH2 mole fraction was measured using frequency-modulation absorption spectroscopy. For the branching ratio determination, the IR emission from N2O was monitored. During the N2O emission experiments, the NO2 mole fraction was measured simultaneously using a tunable diode laser. The measured species profiles were interpreted using a detailed 118-reaction mechanism, which was based on the reaction mechanism from our previous study of the NH2 + NO reaction with added reactions involving N2O and NO2. The overall rate coefficient is (5.5 ± 0.8) × 1012 cm3 mol-1 s1 in the temperature range, 1330-1527 K, and pressure range 1.31-1.49 bar. This value is 1.6 times the result of Glarborg et al. and 2.5 times that extrapolated from the expression reported by Park and Lin. The measured branching ratio for the N2O+ H2O product channel of the NH2+NO2 reaction was 0.17 ± 0.04 for the temperature range 1319-1493 K, which is consistent with the results of Park and Lin and Quandt and Hershberger at lower temperatures.

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