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.