Application of pulsed corona induced plasma chemical process to an industrial incinerator.
Pulsed corona induced plasma chemical process (PPCP) has been investigated for the simultaneous removal of NO(x) (nitrogen oxides) and SO2 (sulfur dioxide) from the flue gas emission. It is one of the world's largest scales of PPCP for treating NO(x) and SO2 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 m3/h. To improve the removal efficiency of SO2 and NO(x), ammonia (NH3) and propylene (C3H6) were used as chemical additives. It was observed that the pulsed corona induced plasma chemical process made significant NO(x) and SO2 conversion with reasonable electric power consumption. The ammonia injection was very effective in the enhancement of SO2 removal. NO removal efficiency was significantly improved by injecting a C3H6 additive. In the experiments, the removal efficiencies of SO2 and NO(x) were approximately 99 and 70%, respectively. The specific energy consumption during the normal operation was approximately 1.4 Wh/m3, and the nanopulse conversion efficiency of 64.3% was achieved with the pulsed corona induced plasma chemical process.
Lee
Yong-Hwan
YH
School of Environmental Science and Engineering & Pohang Accelerator Laboratory, Pohang University of Science and Technology, San 31, Hyoja dong, Pohang 790-784, Republic of Korea. yhlee69@postech.ac.kr
Jung
Won-Suk
WS
Choi
Yu-Ri
YR
Oh
Jong-Seok
JS
Jang
Sung-Duck
SD
Son
Yoon-Gyu
YG
Cho
Moo-Hyun
MH
Namkung
Won
W
Koh
Dong-Jun
DJ
Mok
Young-Sun
YS
Chung
Jae-Woo
JW
D000393:Air Pollutants / Q000032:analysis*; D000397:Air Pollution / Q000517:prevention & control*; D000641:Ammonia; D017745:Incineration; D007220:Industrial Waste; D009589:Nitrogen Oxides / Q000032:analysis*; D012037:Refuse Disposal / Q000379:methods*; D013458:Sulfur Dioxide / Q000032:analysis*
D000393:Air Pollutants; D007220:Industrial Waste; D009589:Nitrogen Oxides; D013458:Sulfur Dioxide; D000641:Ammonia