コロナ放電による燃焼排ガスの小形脱硫・脱硝実験

概要

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It is reported that SO_2 and NO_x in a flue gas can be removed by corona discharge and that pulse corona discharge is as energy-efficient as the electron-beam treatment. However a large amount of data are required to assess the industrial application of the corona discharge method to remove SO_2 and NO_x from combustion flue gas. In this study parametric experiments of SO_2 and NO_x removal from actual and simulated combustion gas have been performed on a laboratory scale, where combustion gas composition, temperature, residence time in a discharge duct and the polarity of high voltage electrode are changed for DC and pulsed corona discharge. The following experimental results are obtained : (1) the increase in H_2O and O_2 concentration improves the SO_2 and NO_x removal performance, (2) dendritic powders of (NH_4)_2SO_4 are apt to deposit on a high-voltage electrode, and (3) the electrode polarity has a nominal effect on the removal performance under our experimental conditions.
一般社団法人日本機械学会の論文
1994-07-25