Modeling of corona discharge combined with Mn2+ catalysis for the removal of SO2 from simulated flue gas

• Published in: Chemosphere (Oxford) Vol. 91; no. 9; pp. 1374 - 1379
• Main Authors: Jiwu, Li, Lei, Fan
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01.05.2013; Elsevier
• Subjects: Adsorption; Applied sciences; Atmospheric pollution; Catalysis; catalytic activity; chemistry; Corona discharge; Desulphurization efficiency; energy; Exact sciences and technology; Gases; Gases - chemistry; General processes of purification and dust removal; manganese; Manganese - chemistry; Manganese ion catalysis; Mass transfer; Mathematical modeling; Models, Theoretical; Pollution; Prevention and purification methods; Sulfur dioxide; Sulfur Dioxide - chemistry; Surface Properties; Water; Water - chemistry; water flow; Mathematical modeling; Desulphurization efficiency; Sulfur dioxide; Mass transfer; Manganese ion catalysis; Corona discharge; Sulfur compounds; Desulfurization; Catalytic reaction; Plasma assisted processing; Theoretical study; Non thermal plasma; Modeling; Manganese II Compounds; Cold plasma; Efficiency; Reaction mechanism; Mathematical model; Corona effect; Flue gas purification
• ISSN: 0045-6535; 1879-1298; 1879-1298
• DOI: 10.1016/j.chemosphere.2013.02.028

[Display omitted] ► The equation of de-SO2 efficiency by corona combined with Mn2+ is established. ► The de-SO2 efficiency increases obviously with increasing of enhancement factor. ► The de-SO2 efficiency increases slightly with the increasing of water flow rate. ► The energy consumption of FDG is lower in wet reactor of existing literature. This study investigated a mass-transfer process of the removal of SO2 from simulated flue gas by corona discharge combined with Mn2+ catalysis in wet reactor, including gas migration, liquid phase diffusion, and chemical reaction. The novelty formula of desulphurization efficiency and the flow rate of flue gas, discharge voltage, reaction enhancement factor, and the flow rate of water were established. It is reported that desulphurization efficiency remarkably increased with the increasing of enhancement factor and discharge voltage at 4000mgm−3 of SO2 and 0.05m3s−1 of gas flow rate. However, the desulphurization efficiency had a slightly increase with the increasing of water flow rate. It is realizable that the energy consumption could be reduced to be lower than 0.3kJm−3, which was acceptable for industrial application. The experimental data were well in accord with the calculated results of theoretical model.