Remove Sulfur Dioxide from Flue Gases to Obtain Sulfuric Acid through Electrodialysis Enrichment. Issue 9 (25th June 2015)

• Record Type: Journal Article
• Authors: Yongtao, Yu; NingPing, ; Guangfei, Qu; Junyan, Li; Qian, Zhao
• Is Part Of: Journal of the Electrochemical Society. Volume 162:Issue 9(2015)
• Page Start: E141
• Page End: E147
• Publication Date: 2015-06-25
• Subjects: electrodialysis -- liquid absorption -- sulfur dioxide; Electrochemistry -- Periodicals; 541.3705
• DOI: 10.1149/2.0591509jes
• Languages: English
• ISSNs: 0013-4651

Abstract

Abstract : This article illustrates the experimental research which disposes low concentration SO2 flue gases through liquid absorption and electrodialysis enrichment. It introduces the technology and devices to produce sulfuric acid by liquid absorption and oxidation of low concentration SO2 in aqueous solutions as well as electrodialysis enrichment in the same reactor. Numerous experiments have been carried out in order to observe the performance of the reactor under the operating conditions: the current density, temperature, volume flow rate of the electrolyte, the sulfuric acid concentration, volume flow rate of the gas, the components of gas mixture, and initial SO2 concentration. When the removal rate of SO2 reaches 83.64%, we eventually get sulfuric acid with the concentration of 28.56%.