Pulsed corona induced plasma chemical process (PPCP) has been investigated for the simultaneous removal of NO{sub}x (nitrogen oxides) and SO{sub}2 (sulfur dioxide) from the flue gas emission. It is one of the world's largest scales of PPCP for treating NO{sub}x and SO{sub}2 simultaneously. A PPCP unit equipped with an average 120 kW modulator has been installed and tested at an industrial incinerator with the gas flow rate of 42 000 m{sup}3/h. To improve the removal efficiency of SO{sub}2 and NO{sub}x, ammonia (NH{sub}3) and propylene (C{sub}3H{sub}6) were used as chemical additives. It was observed that the pulsed corona induced plasma chemical process made significant NO{sub}x and SO{sub}2 conversion with reasonable electric power consumption. The ammonia injection was very effective in the enhancement of SO{sub}2 removal. NO removal efficiency was significantly improved by injecting a C{sub}3H{sub}6 additive. In the experiments, the removal efficiencies of SO{sub}2 and NO{sub}x were approximately 99 and 70, respectively. The specific energy consumption during the normal operation was approximately 1.4 Wh/m{sup}3, and the nanopulse conversion efficiency of 64.3 was achieved with the pulsed corona induced plasma chemical process.
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