Reduction of NO_x From Flue Gas by Corona Discharge Activated Ammonia Radical Showers

S. KANAZAWA Faculty of Engineering, McMaster University, Hamilton, Ontario, L8S 4M1, Canada; Department of Electrical and Electronic Engineering, Oita University, Oita, 870-11, JapanView further author information

J.S. CHANG Faculty of Engineering, McMaster University, Hamilton, Ontario, L8S 4M1, Canada

G.F. ROUND Faculty of Engineering, McMaster University, Hamilton, Ontario, L8S 4M1, Canada

G. SHENG Faculty of Engineering, McMaster University, Hamilton, Ontario, L8S 4M1, Canada; Faculty of Environmental Science, York University, North York, Ontario, M3J1P3, Canada

T. OHKUBO Department of Electrical and Electronic Engineering, Oita University, Oita, 870-11, Japan

Y. NOMOTO Department of Electrical and Electronic Engineering, Oita University, Oita, 870-11, Japan

T. ADACHI Department of Electrical and Electronic Engineering, Oita University, Oita, 870-11, Japan

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Abstract

An experimental investigation has been conducted to reduce NO_x from combustion flue gases by means of corona discharge activated ammonia radical shower methods. Experiments were conducted for pure nitrogen-NO, wet air-NO, and simulated combustion gases at a flue gas flow rate 3 l/min. The results showed that the NO_x reduction increased with increasing activation voltage. In case of wet air-NO mixture gases, a NO_x reduction efficiency of 100% was achieved. The deposited NH₄NO₃ aerosol particles have a significant effect on the stability of intense streamer coronas. Trace amounts of N₂O in an exhaust gas and NH₄NO₃ aerosol particles deposited on the electrodes were observed as by-products

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S. KANAZAWA

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Reduction of NO_x From Flue Gas by Corona Discharge Activated Ammonia Radical Showers

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Reduction of NOx From Flue Gas by Corona Discharge Activated Ammonia Radical Showers

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Reduction of NO_x From Flue Gas by Corona Discharge Activated Ammonia Radical Showers