The effect of O2 in a humid O2/N2/NOx gas mixture on NOx and N2O remediation by an atmospheric pressure dielectric barrier discharge

Steluta Teodoru; Yukihiro Kusano; Annemie Bogaerts

doi:10.1002/ppap.201100187

The effect of O₂ in a humid O₂/N₂/NO_x gas mixture on NO_x and N₂O remediation by an atmospheric pressure dielectric barrier discharge

Steluta Teodoru, Yukihiro Kusano, Annemie Bogaerts

University of Antwerp

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

Abstract

A numerical model for N_xO_y remediation in humid air plasma produced with a dielectric barrier discharge at atmospheric pressure is presented. Special emphasis is given to NO₂ and N₂O reduction with the decrease of O₂ content in the feedstock gas. A detailed reaction mechanism including electronic and ionic processes, as well as the contribution of radicals and excited atomic/molecular species is proposed. The temporal evolution of the densities of NO, NO₂ and N₂O species, and some other by-products, is analyzed, and the major pathways for the N_xO_y remediation are discussed for one pulse. Subsequently, simulations are presented for a multi-pulses case, where three O₂ contents are tested for optimization of the remediation process. It is found that when the gas mixture O₂/N₂/H₂O/NO^x has no initial O₂ content, the best NO_x and N₂O remediation is achieved.

Original language	English
Journal	Plasma Processes and Polymers
Volume	9
Pages (from-to)	652-689
ISSN	1612-8850
DOIs	https://doi.org/10.1002/ppap.201100187
Publication status	Published - 2012

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title = "The effect of O2 in a humid O2/N2/NOx gas mixture on NOx and N2O remediation by an atmospheric pressure dielectric barrier discharge",

abstract = "A numerical model for NxOy remediation in humid air plasma produced with a dielectric barrier discharge at atmospheric pressure is presented. Special emphasis is given to NO2 and N2O reduction with the decrease of O2 content in the feedstock gas. A detailed reaction mechanism including electronic and ionic processes, as well as the contribution of radicals and excited atomic/molecular species is proposed. The temporal evolution of the densities of NO, NO2 and N2O species, and some other by-products, is analyzed, and the major pathways for the NxOy remediation are discussed for one pulse. Subsequently, simulations are presented for a multi-pulses case, where three O2 contents are tested for optimization of the remediation process. It is found that when the gas mixture O2/N2/H2O/NOx has no initial O2 content, the best NOx and N2O remediation is achieved.",

author = "Steluta Teodoru and Yukihiro Kusano and Annemie Bogaerts",

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T1 - The effect of O2 in a humid O2/N2/NOx gas mixture on NOx and N2O remediation by an atmospheric pressure dielectric barrier discharge

AU - Teodoru, Steluta

AU - Kusano, Yukihiro

AU - Bogaerts, Annemie

PY - 2012

Y1 - 2012

N2 - A numerical model for NxOy remediation in humid air plasma produced with a dielectric barrier discharge at atmospheric pressure is presented. Special emphasis is given to NO2 and N2O reduction with the decrease of O2 content in the feedstock gas. A detailed reaction mechanism including electronic and ionic processes, as well as the contribution of radicals and excited atomic/molecular species is proposed. The temporal evolution of the densities of NO, NO2 and N2O species, and some other by-products, is analyzed, and the major pathways for the NxOy remediation are discussed for one pulse. Subsequently, simulations are presented for a multi-pulses case, where three O2 contents are tested for optimization of the remediation process. It is found that when the gas mixture O2/N2/H2O/NOx has no initial O2 content, the best NOx and N2O remediation is achieved.

AB - A numerical model for NxOy remediation in humid air plasma produced with a dielectric barrier discharge at atmospheric pressure is presented. Special emphasis is given to NO2 and N2O reduction with the decrease of O2 content in the feedstock gas. A detailed reaction mechanism including electronic and ionic processes, as well as the contribution of radicals and excited atomic/molecular species is proposed. The temporal evolution of the densities of NO, NO2 and N2O species, and some other by-products, is analyzed, and the major pathways for the NxOy remediation are discussed for one pulse. Subsequently, simulations are presented for a multi-pulses case, where three O2 contents are tested for optimization of the remediation process. It is found that when the gas mixture O2/N2/H2O/NOx has no initial O2 content, the best NOx and N2O remediation is achieved.

U2 - 10.1002/ppap.201100187

DO - 10.1002/ppap.201100187

M3 - Journal article

SN - 1612-8850

VL - 9

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JO - Plasma Processes and Polymers

JF - Plasma Processes and Polymers