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Citation: BAI Min-Dong, BAI Xi-Yao, TANG Hong, SHEN Xin-Jun, XUE Xiao-Hong. Removal of SO₂ in Simulated Flue Gas via Strong Ionization Discharge[J]. Chinese Journal of Applied Chemistry, ;2005, 22(2): 128-131. shu

Removal of SO₂ in Simulated Flue Gas via Strong Ionization Discharge

1.
Key Laboratory of Strong Electric-Field Ionization Discharge of Liaoning Province, Environmental Engineering Institute, Dalian Maritime University, Dalian 116026

Corresponding author: BAI Min-Dong,
Received Date: 28 March 2004
Available Online: 15 August 2004
Fund Project: 国家自然科学基金重点研究项目(60031001) (60031001)

Removal of SO₂ in simulated flue gas was investigated via strong ionization discharge. Hydroxyl radicals with high-concentration were produced by means of the ionization of O₂ and H₂O molecules, which oxidized SO₂ directly into H₂SO₄ droplets at 120℃ in the absence of any catalyst and absorbent. H₂SO₄ were collected with the electrostatic precipitator. As a result, the removal efficiency of SO₂ is 84.0%. The removal efficiency of SO₂ increases with the increases of the concentrations of O₂ and H₂O, the reaction time and the intensity of electric field of discharging, and decreases with the increases of SO₂ concentration and flow rate of flue gas. The reaction time is only 0.8 s.
- removal of SO₂,
- strong ionization discharge,
- hydroxyl radical,
- sulfuric acid
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Removal of SO2 in Simulated Flue Gas via Strong Ionization Discharge

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Removal of SO₂ in Simulated Flue Gas via Strong Ionization Discharge