文献类型：期刊文献

英文题名：Kinetics and Mechanism of Sulfite Oxidation in the Magnesium-Based Wet Flue Gas Desulfurization Process

作者：Shen, Zhigang[1];Guo, Shaopeng[1];Kang, Wanzhong[1,2];Zeng, Kun[1];Yin, Ming[1];Tian, Jingyu[1];Lu, Jun[1]

机构：[1]E China Univ Sci & Technol, Coll Resource & Environm Engn, Shanghai 200237, Peoples R China;[2]SINOPEC Ningbo Engn Co Ltd, Ningbo 315103, Zhejiang, Peoples R China

年份：2012

卷号：51

期号：11

起止页码：4192

外文期刊名：INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH

收录：;EI(收录号：20121314902511);WOS:【SCI-EXPANDED(收录号:WOS:000301681000007)】；

基金：The present work was supported by the project cooperating with SINOPEC Ningbo Research Institute of Technology and the Shanghai Leading Academic Discipline Project (Grant No. B506).

语种：英文

外文关键词：Flue gases - Magnesium compounds - Desulfurization - Optimization - Oxidation

摘要：The kinetics of sulfite oxidation in the magnesium-based wet flue gas desulfurization (FGD) process were investigated in a stirred bubbling reactor by varying the concentrations of MgSO3 and MgSO4, pH, air flow and temperature. The reaction was found to be 0.88 order with respect to magnesium sulfite and the oxidation could reach the maximum rate when the pH value was close to 6.5. The mechanism of the oxidation was discussed, and it was concluded that the oxidation is controlled by diffusion of oxygen. These results would be useful for the design or process optimization of the magnesium-based wet FGD system.