Measurement of OH radical in nonthermal plasma for NO/NO2 reduction

Chul Woung Park; Jae Won Hahn; Dong Nam Shin

doi:10.1109/CLEOPR.1999.811466

Measurement of OH radical in nonthermal plasma for NO/NO₂ reduction

Chul Woung Park, Jae Won Hahn, Dong Nam Shin

Department of Mechanical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

6 Citations (Scopus)

Abstract

NO in exhaust gas is the major source of air pollutants, causing photochemical smog and acid rain. The corona discharge plasma process for removal of NO has been studied intensively for increasing its removal efficiency. Therefore, the development of diagnostic tools measuring major species and minor radicals produced in the plasma is important to characterize the removal process. OH is one of the oxidizing radicals that can initiate the NO removal process. The end product (HNO₃) of the NO oxidation process is produced by the OH and NO₂ reaction. Therefore the OH concentration is closely related to the removal efficiency of NO and NO₂. In the study we measure the oxidizing radical OH emission spectrum in a nonthermal plasma reactor and investigated H₂O, H₂O₂ and C₂H₄ additive effects on NO/NO₂ reduction and OH emission intensity. For the measurement of the low intensity of OH emission in a corona discharge, we made a cylinder-wire type plasma reactor that concentrated the corona emission in the center of the reactor.

Original language	English
Title of host publication	CLEO/Pacific Rim 1999 - Pacific Rim Conference on Lasers and Electro-Optics
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	356-357
Number of pages	2
ISBN (Electronic)	0780356616, 9780780356610
DOIs	https://doi.org/10.1109/CLEOPR.1999.811466
Publication status	Published - 1999
Event	1999 Pacific Rim Conference on Lasers and Electro-Optics, CLEO/Pacific Rim 1999 - Seoul, Korea, Republic of Duration: 1999 Aug 30 → 1999 Sept 3

Publication series

Name	CLEO/Pacific Rim 1999 - Pacific Rim Conference on Lasers and Electro-Optics
Volume	2

Other

Other	1999 Pacific Rim Conference on Lasers and Electro-Optics, CLEO/Pacific Rim 1999
Country/Territory	Korea, Republic of
City	Seoul
Period	99/8/30 → 99/9/3

Bibliographical note

Publisher Copyright:
© 1999 IEEE.

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Computer Networks and Communications
Physics and Astronomy(all)

Access to Document

10.1109/CLEOPR.1999.811466

Cite this

Park, C. W., Hahn, J. W., & Shin, D. N. (1999). Measurement of OH radical in nonthermal plasma for NO/NO₂ reduction. In CLEO/Pacific Rim 1999 - Pacific Rim Conference on Lasers and Electro-Optics (pp. 356-357). [811466] (CLEO/Pacific Rim 1999 - Pacific Rim Conference on Lasers and Electro-Optics; Vol. 2). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/CLEOPR.1999.811466

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title = "Measurement of OH radical in nonthermal plasma for NO/NO2 reduction",

abstract = "NO in exhaust gas is the major source of air pollutants, causing photochemical smog and acid rain. The corona discharge plasma process for removal of NO has been studied intensively for increasing its removal efficiency. Therefore, the development of diagnostic tools measuring major species and minor radicals produced in the plasma is important to characterize the removal process. OH is one of the oxidizing radicals that can initiate the NO removal process. The end product (HNO3) of the NO oxidation process is produced by the OH and NO2 reaction. Therefore the OH concentration is closely related to the removal efficiency of NO and NO2. In the study we measure the oxidizing radical OH emission spectrum in a nonthermal plasma reactor and investigated H2O, H2O2 and C2H4 additive effects on NO/NO2 reduction and OH emission intensity. For the measurement of the low intensity of OH emission in a corona discharge, we made a cylinder-wire type plasma reactor that concentrated the corona emission in the center of the reactor.",

author = "Park, {Chul Woung} and Hahn, {Jae Won} and Shin, {Dong Nam}",

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Park, CW, Hahn, JW & Shin, DN 1999, Measurement of OH radical in nonthermal plasma for NO/NO₂ reduction. in CLEO/Pacific Rim 1999 - Pacific Rim Conference on Lasers and Electro-Optics., 811466, CLEO/Pacific Rim 1999 - Pacific Rim Conference on Lasers and Electro-Optics, vol. 2, Institute of Electrical and Electronics Engineers Inc., pp. 356-357, 1999 Pacific Rim Conference on Lasers and Electro-Optics, CLEO/Pacific Rim 1999, Seoul, Korea, Republic of, 99/8/30. https://doi.org/10.1109/CLEOPR.1999.811466

Measurement of OH radical in nonthermal plasma for NO/NO₂ reduction. / Park, Chul Woung; Hahn, Jae Won; Shin, Dong Nam.

CLEO/Pacific Rim 1999 - Pacific Rim Conference on Lasers and Electro-Optics. Institute of Electrical and Electronics Engineers Inc., 1999. p. 356-357 811466 (CLEO/Pacific Rim 1999 - Pacific Rim Conference on Lasers and Electro-Optics; Vol. 2).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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AB - NO in exhaust gas is the major source of air pollutants, causing photochemical smog and acid rain. The corona discharge plasma process for removal of NO has been studied intensively for increasing its removal efficiency. Therefore, the development of diagnostic tools measuring major species and minor radicals produced in the plasma is important to characterize the removal process. OH is one of the oxidizing radicals that can initiate the NO removal process. The end product (HNO3) of the NO oxidation process is produced by the OH and NO2 reaction. Therefore the OH concentration is closely related to the removal efficiency of NO and NO2. In the study we measure the oxidizing radical OH emission spectrum in a nonthermal plasma reactor and investigated H2O, H2O2 and C2H4 additive effects on NO/NO2 reduction and OH emission intensity. For the measurement of the low intensity of OH emission in a corona discharge, we made a cylinder-wire type plasma reactor that concentrated the corona emission in the center of the reactor.

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