ABSTRACT:An industry-scale semi-wet t開黑echnological process for人一 flue gas desulfurization by corona話雜 discharges is recommended. Its ch為器aracteristics are: (1) it us上討es an ac/dc power sup藍錢ply to generate uniformly distribu藍服ted streamer plasmas; (2) 習化it uses a partitioned wet reac山月tor system in which SO₂ in the flue gas is absorbed with 老林ammonia water in its thermal草唱 chemical reaction stage and t化做he generated solution is repeat和道edly sprayed and tra行動nsferred at an appropriate flow 答知rate to the successive醫水 plasma reaction stage under the con長腦ditions of keeping liquid flow i的影n balance. In the plasma sta子火ge, SO₂ absorption by the liquid is enhanced by的山 the electric wind and畫鐘 the sulfites in the solution票歌 experiences plasma oxidiz老弟ation; (3) drying up the end liquid to 話哥produce powder-typed b什雨yproduct and discharging the end書草 gas after heat exchange with the拿電 hot gas at the inlet. Through站哥 a pilot test of 12,0兒友00 Nm³/h capacity of flue gas with a機船n initial SO₂ concentration of about 500 ppm, re答的sults of desulfurization rate &計書gt;95%, energy consumption in the react西笑or 1.8 W/Nm³ , ammonia slip less t筆資han 5 ppm and qualified fertilizer byp員間roduct are obtained.