Comparison of electrical discharge techniques for nonthermal plasma processing of NO in N/sub 2/

Penetrante, B.M.; Hsiao, M.C.; Merritt, B.T.; Vogtlin, G.E.; Wallman, P.H.

doi:10.1109/27.467990

Cited by 238 publications

(173 citation statements)

References 20 publications

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“…At low voltage (30 kV) the rate constants are almost equal (approximately .01 s" 1 ) and at the high voltage (50 kV) the rate constants are 0.025 s _1 for nitrogen dissociation and 0.25 s' 1 for oxygen dissociation. This factor often difference is significantly smaller than theoretical studies (Penetrante et al, 1995) where it is predicted that the G-values for oxygen and nitrogen dissociation would differ by about 600 times. It should also be noted that these theoretical studies also do not predict a field dependence as seen in our work.…”

Section: No Removal In Dry Airmentioning

confidence: 66%

“…The reaction rate constant for nitrogen dissociation was different from the value obtained in pure nitrogen; this is also expected based upon observations reported in the literature that electronegative gases affect the electron energy distribution and thus the chemical reaction rate constants. The pseudo first-order rate constant for nitrogen dissociation was 0.0475 s" 1 in an atmosphere of nitrogen at 50 kV, but in dry air the rate constant factor often difference is significantly smaller than theoretical studies (Penetrante et al, 1995) where it was predicted that the G-values for oxygen and nitrogen dissociation would differ by about 600 times. It should also be noted that these theoretical studies also do not predict a field dependence as seen in our work.…”

Section: Executive Summarymentioning

confidence: 94%

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Pulsed Streamer Corona Reactor Characterization - Phase II

Locke¹,

Swaminathan²,

Finney³

et al. 1996

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Section: No Removal In Dry Airmentioning

confidence: 66%

Section: Executive Summarymentioning

confidence: 94%

Pulsed Streamer Corona Reactor Characterization - Phase II

Locke¹,

Swaminathan²,

Finney³

et al. 1996

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“…As previously stated by [4], [5] and [10] NO molecules contained in mobile engine exhaust gas should be decomposed via the reduction of NO by N radicals and not via the oxidation of NO to NO2. The reduction pathway: leads to acceptable products while the oxidation of NO leads to products that may need further processing or the presence of additives.…”

Section: Experimental Description <21> Power Supply and Diagnosis Apmentioning

confidence: 99%

Nitrogen Oxides Decomposition Using A Dielectric Barrier Discharge Reactor

Bendahan

Fujii

Higashi³

1998

IEEJ Trans. FM

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This paper presents experiments performed using a dielectric barrier discharge for mobile engine pollution control purposes. Measurements of NO, NOx decomposition efficiency and the resultant energy cost was achieved for sample gas mixtures (NO/N2, NO2/N2) and for real diesel engine exhaust gas. Experiment results show that a significant NO decomposition rate of 65-76% (in NO (=644ppm and 166ppm)/N2) can be obtained with the reactor used. The related energy cost was <300eV per NO molecule removed. Experiments in NO/N2 also demonstrated that varying the power injection into the reactor lead to a considerable reduction of the energy cost while keeping high decomposition rate. With diesel exhaust gas, 66% of NO. decomposition (initially 115ppm) was achieved for an energy cost of 464eV/NOx.

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“…All electrical discharge plasma reactors accomplish essentially the same gas-phase plasma chemistry under the same gas conditions [17][18][19][20].…”

Section: Oxidation Experimentsmentioning

confidence: 99%

“…Details of the plasma chemistry model used here are discussed by Penetrante et al [16][17][18][19][20][21]. Electron-impact processes in the plasma produces ions and radicals.…”

Section: Chemical Kineticsmentioning

confidence: 99%

Sulfur Tolerance of Selective Partial Oxidation of NO to NO2 in a Plasma

Penetrante¹,

Brusasco²,

Merritt³

et al. 1999

SAE Technical Paper Series

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Several catalytic aftertreatment technologies rely on the conversion of NO to NO 2 to achieve efficient reduction of NO x and particulates in diesel exhaust. These technologies include the use of selective catalytic reduction of NO x with hydrocarbons, NO x adsorption, and continuously regenerated particulate trapping. These technologies require low sulfur fuel because the catalyst component that is active in converting NO to NO 2 is also active in converting SO 2 to SO 3 . The SO 3 leads to increase in particulates and/or poison active sites on the catalyst. A non-thermal plasma can be used for the selective partial oxidation of NO to NO 2 in the gas-phase under diesel engine exhaust conditions. This paper discusses how a non-thermal plasma can efficiently oxidize NO to NO 2 without oxidizing SO 2 to SO 3 .

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Comparison of electrical discharge techniques for nonthermal plasma processing of NO in N/sub 2/

Cited by 238 publications

References 20 publications

Pulsed Streamer Corona Reactor Characterization - Phase II

Pulsed Streamer Corona Reactor Characterization - Phase II

Nitrogen Oxides Decomposition Using A Dielectric Barrier Discharge Reactor

Sulfur Tolerance of Selective Partial Oxidation of NO to NO2 in a Plasma

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