Keping Yan, Ruinian Li, T志照ianle Zhu, Hongdi Zhang, Xiaotu H跳站u, et al. A semi-wet們為 technological process for flue時弟 gas desulfurization by corona disch鄉吃arges at an industrial scale

發布日期:2020-04-16浏覽次數: 信息來源: Chemical Engineering Jo能舞urnal

An industry-scale semi-wet technologica機吃l process for flue gas desul要場furization by corona discharge請公s is recommended. Its characteri海林stics are: (1) it uses an ac/dc power 鐵腦supply to generate uni市北formly distributed st師那reamer plasmas; (2) it那機 uses a partitioned wet reactor system科你 in which SO2 in the flue gas is abso去紙rbed with ammonia water in its th討黃ermal chemical reaction stage a業冷nd the generated solution i算長s repeatedly sprayed and transferred a員西t an appropriate flow rate to少劇 the successive plasma react河金ion stage under the co拿信nditions of keeping liquid flow in bala玩房nce. In the plasma stag我民e, SO2 absorption by the liquid is enhanced b子開y the electric wind and畫店 the sulfites in the solution ex樂的periences plasma oxidization; (3) dryin公來g up the end liquid to produce powd她亮er-typed byproduct an微西d discharging the end gas after爸這 heat exchange with the hot gas at t還子he inlet. Through a pilot test of 12,0電話00 Nm3/h capacity of flue gas with到章 an initial SO2 concentration of about答能 500 ppm, results of海們 desulfurization rat放東e >95%, energy consumption in 事刀the reactor 1.8 W/Nm3 , ammonia slip less than 5 ppm and購吃 qualified fertilize廠媽r byproduct are obtained.