Oxidation of NO to NO2 in the Flue Gas (I)

Murakami, Nobuaki; Kojima, Nobuyuki; Hashiguchi, Minoru

doi:10.3775/jie.61.276

Cited by 8 publications

(8 citation statements)

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“…The presence of NO in the inlet gas is seen to promote CH 3 OH oxidation at lower temperatures for all O 2 levels studied. This is consistent with literature results for methanol 15,16,26–30 as well as for a range of other hydrocarbons 163. In the presence of NO (middle graph of Fig.…”

Section: Resultssupporting

confidence: 93%

“…Oxidation of NO to NO 2 by addition of a fuel additive has potential interest as a NO emission control technology, since the presence of nitrogen oxides primarily as NO 2 allows removal for instance in existing wet desulfurization plants. Compared to other hydrocarbons, CH 3 OH has showed a significant potential as a NO oxidizer and the mutual oxidation of CH 3 OH and NO has been studied in a number of flow reactor experiments 15,16,26–30.…”

Section: Introductionmentioning

confidence: 99%

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Methanol oxidation in a flow reactor: Implications for the branching ratio of the CH₃OH+OH reaction

Rasmussen

Wassard

Dam‐Johansen

et al. 2008

Int J of Chemical Kinetics

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The oxidation of methanol in a flow reactor has been studied experimentally under diluted, fuel-lean conditions at 650-1350 K, over a wide range of O 2 concentrations (1%-16%), and with and without the presence of nitric oxide. The reaction is initiated above 900 K, with the oxidation rate decreasing slightly with the increasing O 2 concentration. Addition of NO results in a mutually promoted oxidation of CH 3 OH and NO in the 750-1100 K range. The experimental results are interpreted in terms of a revised chemical kinetic model. Owing to the high sensitivity of the mutual sensitization of CH 3 OH and NO oxidation to the partitioning of CH 3 O and CH 2 OH, the CH 3 OH + OH branching fraction could be estimated as α = 0.10 ± 0.05 at 990 K. Combined with low-temperature measurements, this value implies a branching fraction that is largely independent of temperature. It is in good agreement with recent theoretical estimates, but considerably lower than values employed in previous modeling studies. Modeling predictions with the present chemical kinetic model is in quantitative agreement with experimental results below 1100 K, but at higher temperatures and high O 2 concentration the model underpredicts the oxidation rate.

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Section: Resultssupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Methanol oxidation in a flow reactor: Implications for the branching ratio of the CH₃OH+OH reaction

Rasmussen

Wassard

Dam‐Johansen

et al. 2008

Int J of Chemical Kinetics

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“…This supports the validity of their determination of k 1 and their derived values of k 1,0 and Also, the reasonably good agreement between the k . 1,ϱ measured and predicted CH 3 NO 2 decay supports the value of F c determined in the present work from the data in Figure 1, even though a slightly better agreement between the measured and predicted CH 3 NO 2 concentration was obtained with (instead of F ϭ 0.14 c 0.183) in the expression for k 1 .…”

Section: Numerical Analysissupporting

confidence: 68%

Nitromethane dissociation: Implications for the CH3 + NO2 reaction

Glarborg¹,

Bendtsen²,

Miller³

1999

Int. J. Chem. Kinet.

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The thermal decomposition of nitromethane under highly diluted conditions in shock tubes has been analyzed in terms of a detailed chemical kinetic model. The experimental data were adopted from Glä nzer and Troe, Hsu and Lin, and Zhang and Bauer, respectively; they cover the temperature range and pressures from 0.5 to 6.0 bar. Based on 1000-1400 K these results, rate constants for the reactions (R1) andThe high and low pressure limits for reaction (R1) determined by Glä nzer and Troe have been shown to be consistent with more recent shock tube data, provided a center broadening parameter is introduced to describe the fall-off behavior. Our reinterpretation of the shock tube results of Glä nzer and Troe together with room temperature measurements indicate that the rate constant for (R14) decreases slightly with temperature, as cm mol s . order of magnitude faster than recombination of CH 3 and NO 2 to form nitromethane. Based on the available data for the forward and reverse rate of reaction (R1) a value of 66.7 Ϯ 2.0 cal/(mol K) for the entropy S 0,298 of CH 3 NO 2 is estimated.

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“…This interaction has been investigated for a wide range of fuels, including H 2 [3,4], CO [4][5][6][7], CH 2 O [3,8], CH 4 /natural gas [3,4,[9][10][11][12][13][14][15][16][17][18][19][20][21], C 2 hydrocarbons [4,12,[22][23][24], higher hydrocarbons [4,12,[25][26][27][28], and oxygenated hydrocarbons [29][30][31][32][33][34][35]. The sensitizing behavior is a result of interactions with the radical pool as well as direct reactions between NO x and stable species, e.g., H 2 , O 2 , CH 2 O, CH 4 , and C 2 H 6 .…”

Section: Introductionmentioning

confidence: 99%

Sensitizing effects of NOx on CH4 oxidation at high pressure

Rasmussen

Glarborg

2008

Combustion and Flame

131

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Oxidation of NO to NO2 in the Flue Gas (I)

Cited by 8 publications

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Methanol oxidation in a flow reactor: Implications for the branching ratio of the CH₃OH+OH reaction

Methanol oxidation in a flow reactor: Implications for the branching ratio of the CH₃OH+OH reaction

Nitromethane dissociation: Implications for the CH3 + NO2 reaction

Sensitizing effects of NOx on CH4 oxidation at high pressure

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Oxidation of NO to NO2 in the Flue Gas (I)

Cited by 8 publications

References 0 publications

Methanol oxidation in a flow reactor: Implications for the branching ratio of the CH3OH+OH reaction

Methanol oxidation in a flow reactor: Implications for the branching ratio of the CH3OH+OH reaction

Nitromethane dissociation: Implications for the CH3 + NO2 reaction

Sensitizing effects of NOx on CH4 oxidation at high pressure

Contact Info

Product

Resources

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Methanol oxidation in a flow reactor: Implications for the branching ratio of the CH₃OH+OH reaction

Methanol oxidation in a flow reactor: Implications for the branching ratio of the CH₃OH+OH reaction