Sulfur dioxide (SO2) gas transfer process enhanced by corona discharge

The sulfur dioxide (SO2) gas transfer process in a corona discharge field has been studied. The experiments were conducted to investigate the effects of voltage, length, and height of the discharge area on the electric transfer of SO2 as well as on the desulphurization efficiency. Experimental results show that corona discharge can facilitate the SO2 gas transfer process. The rate and efficiency of desulphurization increase with increasing voltage, length of discharge area, and input power. The addition of a uniform electric field to the corona-discharge field improves the electronic transfer of SO2. Measured desulphurization efficiency was as high as 95%, and the augmentation of desulphurization efficiency due to corona discharge was nearly 50% under the conditions tested.