Kinetic of the NO removal by nonthermal plasma in N2/NO/C2H4 mixtures

Fresnet, F.; Baravian, G.; Magne, L.; Pasquiers, S.; Postel, C.; Puech, Vincent; Rousseau, Antoine

doi:10.1063/1.1332413

Cited by 55 publications

(71 citation statements)

References 13 publications

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“…A 0D model has been previously developed [5][6][7][8]26], which couples : i) the solution of the Boltzmann equation for the electrons, ii) the kinetic equations describing the temporal evolution of the various species (molecular excited states, ions, atoms, radicals, molecules) produced during the discharge or during the afterglow, iii) the electric circuit equations given by the Kirchoff laws. Many reaction rates are sensitive functions of the gas temperature so that temperature time evolution is taken into account through the resolution of the energy conservation equation.…”

Section: Self-consistent Modellingmentioning

confidence: 99%

“…Details on the code configuration and the numerical procedure are given in [26]. The measured time evolutions of the voltage and the discharge current were compared to the computed ones in order to check that energy deposition in the plasma composed of atmospheric gases is well predicted by the model [7,8].…”

Section: Self-consistent Modellingmentioning

confidence: 99%

“…Details about the kinetic scheme adopted for atmospheric gases has been given in [5][6][7][8] As far as a carbonated molecule is added to N 2 /O 2 , numerous other kinetic processes are involved in the discharge. As a first step, we have only considered oxidation and dissociation reactions of acetone and IPA, and the kinetics of by-products containing carbon atoms (ions and radicals) have been neglected.…”

Section: Self-consistent Modellingmentioning

confidence: 99%

“…The photo-triggering technique allows to achieve homogeneous transient high-pressure plasmas in various types of gas mixtures, in particular those with atmospheric gases N 2 , O 2 , and H 2 O [7,8]. Therefore measurements are compared to predictions of a self-consistent 0D discharge and kinetic model which takes into account all relevant reactions for OH and the VOC molecule.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

OH kinetics in photo-triggered discharges used for VOCs conversion

Magne¹,

Blin-Simiand²,

Gadonna³

et al. 2009

Eur. Phys. J. Appl. Phys.

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The kinetic of the hydroxyl radical is studied in N 2 /O 2 /H 2 O mixtures with small amounts of acetone or isopropyl alcohol (0.5 %). The radical density is measured in absolute value in the afterglow of a photo-triggered discharge, which generates an homogeneous transient nonequilibrium plasma, using a time resolved absorption measurement method. For dry mixtures, experimental results are compared to predictions of a self-consistent 0D discharge and kinetic model. It is shown that dissociation of the VOCs through quenching collisions of nitrogen metastable states plays an important role in the production of OH. Measurements can not be explained looking only at the oxidation of acetone or IPA by the oxygen atom. This result is reinforced by experimental results about the OH density in wet mixtures, with or without VOCs, compared to dry ones. PACS:Plasma

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Section: Self-consistent Modellingmentioning

confidence: 99%

Section: Self-consistent Modellingmentioning

confidence: 99%

Section: Self-consistent Modellingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

OH kinetics in photo-triggered discharges used for VOCs conversion

Magne¹,

Blin-Simiand²,

Gadonna³

et al. 2009

Eur. Phys. J. Appl. Phys.

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“…For the removal of either NO, hydrocarbons, or Volatile Organic Compounds (VOC), such an approach has been already applied both to studies on the gas mixture composition in the far afterglow [45][46][47], i.e., at a time at which the chemical activity of the electrically energized mixture comes to an end, and on time-resolved studies on molecules (NO, ozone) or radicals (OH) in the afterglow [45,[48][49][50][51][52]. A detailed description of photo-triggered discharges and their applications can be found in the paper of Lacour et al [53] and references therein.…”

Section: Introductionmentioning

confidence: 99%

Effect Of Propene, n-Decane, and Toluene Plasma Kinetics on NO Conversion in Homogeneous Oxygen-Rich Dry Mixtures at Ambient Temperature

Lombardi

Blin-Simiand

Jorand

et al. 2007

Plasma Chem Plasma Process

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A photo-triggered discharge is used to study the influence of three hydrocarbons (HCs), propene (C 3 H 6 ), n-decane (C 10 H 22 ), and toluene (C 6 H 5 CH 3 ) on NO conversion in N 2 /O 2 /NO/HC mixtures, with 18.5% O 2 concentration, 700 ppm of NO, and an hydrocarbon concentration ranging between 190 ppm and 2,700 ppm. The electrical system generates a transient homogeneous plasma, working under 400 mbar total pressure, with a 50 ns short current pulse at a repetition frequency up to a few Hz. The NO concentration at the exit of the reactor is quantified using absolute FTIR spectroscopy measurements, as a function of the specific deposited energy in the discharge and the mixture composition. Owing to the plasma homogeneity, the experimental results can be compared to predictions of a self-consistent 0-D discharge and kinetic model based on available data in the literature about reactions and their rate constants. It is shown that the addition of either propene (as for DBD or corona discharges) or n-decane to N 2 /O 2 /NO leads to an improvement of the NO removal as compared to the mixture without hydrocarbon molecules. The adopted kinetic schemes explain this effect for the two mixture types. On the other hand, both the experiments and model predictions emphasize that the addition of toluene does not lead to the improvement of NO conversion. Moreover, compounds that are useful for NO x reduction catalysis, such as aldehydes, are less produced in the mixture with toluene.

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Conversion of NO in NO/N2, NO/O2/N2, NO/C2H4/N2 and NO/C2H4/O2/N2 Systems by Dielectric Barrier Discharge Plasmas

Zhu

Sun

Niu

et al. 2005

Plasma Chem Plasma Process

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An experimental study on the conversion of NO in the NO/N 2 , NO/O 2 /N 2 , NO/C 2 H 4 /N 2 and NO/C 2 H 4 /O 2 /N 2 systems has been carried out using dielectric barrier discharge (DBD) plasmas at atmospheric pressure. In the NO/N 2 system, NO decomposition to N 2 and O 2 is the dominating reaction; NO conversion to NO 2 is less significant. O 2 produced from NO decomposition was detected by an on-line mass spectrometer. With the increase of NO initial concentration, the concentration of O 2 produced decreases at 298 K, but slightly increases at 523 K. In the NO/O 2 /N 2 system, NO is mainly oxidized to NO 2 , but NO conversion becomes very low at 523 K and over 1.6% of O 2 . In the NO/C 2 H 4 /N 2 system, NO is reduced to N 2 with about the same NO conversion as that in the NO/N 2 system but without NO 2 formation. In the NO/C 2 H 4 /O 2 /N 2 system, the oxidation of NO to NO 2 is dramatically promoted. At 523 K, with the increase of the energy density, NO conversion increases rapidly first, and then almost stabilizes at 93-91% of NO conversion with 61-55% of NO 2 selectivity in the energy density range of 317-550 J L −1 . It finally decreases gradually at high energy density. A negligible amount of N 2 O is formed in the above four systems. Of the four systems studied, NO conversion and NO 2 selectivity of the NO/C 2 H 4 /O 2 /N 2 system are the highest, and NO/O 2 /C 2 H 4 /N 2 system has the lowest electrical energy consumption per NO molecule converted.

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Kinetic of the NO removal by nonthermal plasma in N2/NO/C2H4 mixtures

Cited by 55 publications

References 13 publications

OH kinetics in photo-triggered discharges used for VOCs conversion

OH kinetics in photo-triggered discharges used for VOCs conversion

Effect Of Propene, n-Decane, and Toluene Plasma Kinetics on NO Conversion in Homogeneous Oxygen-Rich Dry Mixtures at Ambient Temperature

Conversion of NO in NO/N2, NO/O2/N2, NO/C2H4/N2 and NO/C2H4/O2/N2 Systems by Dielectric Barrier Discharge Plasmas

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