High Efficiency NO Reduction by Ammonia Radicals Generated from Dielectric Barrier Discharge

• Kumano Yuta

  Graduate School of Environmental and Renewable Energy Systems, Gifu University, Japan

• Kambara Shinji

  Graduate School of Environmental and Renewable Energy Systems, Gifu University, Japan

• Moritomi Hiroshi

  Graduate School of Environmental and Renewable Energy Systems, Gifu University, Japan

• Yukimura Ken

  Department of Electrical Engineering, Doshisha University, Japan

• Kawamura Kensuke

  Department of Electrical Engineering, Doshisha University, Japan

• Yamashita Toru

  Coarl Research Laboratory, Idemitsu Kosan Co., LTD., Japan

抄録

Application of pulsed electrical discharge for gas cleaning is gaining prominence. Particularly, various experiments using plasma techniques have been studied to reduce NOx generated from fossil fuel combustion. Different kinds of plasma reactors have been developed to remove NOx for high efficiency and low cost. However, energy efficiency (g-NO/kWh) is low in their techniques because large amount of exhaust gas are treated in plasma reactors with large power consumption. For improving energy efficiency, we have developed a new De-NOx system by ammonia radical injection. NO reduction experiment was performed by injecting ammonia radicals, which were externally generated by flowing the NH3 gas diluted with Ar gas through a dielectric barrier discharge (DBD) with a one-cycle sinusoidal-wave power source. An intermittent one-cycle-sinusoidal power source was employed as the power source for generating DBD. The discharge was intermittently formed between coaxial cylindrical electrodes with a space of 1.5 mm at an applied peak-to-peak voltage of 3-15kV. The generated radicals were injected to simulation gas (NO/O₂/N₂). The simulation gas contained 0-5 % O₂, and the effect of O₂ on NOx removal was investigated. As a result, the maximum energy efficiency in this system was 140 g/kWh.

収録刊行物

• アジア・太平洋化学工学会議発表論文要旨集

  アジア・太平洋化学工学会議発表論文要旨集 2004 (0), 592-592, 2004

  公益社団法人 化学工学会

キーワード

• radical injection
• NO reduction
• dielectric barrier discharge

詳細情報

• CRID: 1390001205727476864
• NII論文ID: 130005052654
• DOI: 10.11491/apcche.2004.0.592.0
• 本文言語コード: en
• データソース種別:
  • JaLC
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可