文献类型：期刊文献

英文题名：Studies on magnesium-based wet flue gas desulfurization process with oxidation inhibition of the byproduct

作者：Shen, Zhigang[1];Chen, Xin[2];Tong, Ming[2];Guo, Shaopeng[1];Ni, Minjun[3];Lu, Jun[1]

机构：[1]E China Univ Sci & Technol, Minist Educ, Key Lab Coal Gasificat, Shanghai 200237, Peoples R China;[2]SINOPEC Ningbo Engn Co Ltd, Ningbo 315103, Zhejiang, Peoples R China;[3]Sinopharm Chem Reagent Co Ltd, Shanghai 200002, Peoples R China

年份：2013

卷号：105

起止页码：578

外文期刊名：FUEL

收录：;EI(收录号：20124915769796);WOS:【SCI-EXPANDED(收录号:WOS:000311935400064)】；

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

语种：英文

外文关键词：Wet FGD; Magnesium oxide; Oxidation inhibition; Spray scrubber; Mass transfer model

摘要：This paper presents a novel magnesium-based wet flue gas desulfurization (FGD) process in which sodium thiosulfate is used to inhibit the oxidation of desulfurization byproduct. Effects of different operating variables in FGD process were experimentally researched in a spray scrubber. The results showed that the magnesium-based wet FGD process was more suitable for low SO2 concentration flue gas and indicated that the adding of Na2S2O3 could slightly enhance the desulfurization process and the MgSO3 content in the byproduct could be maintained above 95% when the thiosulfate-sulfite ratio was controlled above 1:6. A desulfurization process model was established by the double-film theory of mass transfer. The calculated mass transfer coefficients were in reasonable agreement with the experimental values and the absorption process was found to be controlled by gas-film diffusion. (C) 2012 Elsevier Ltd. All rights reserved.