Investigation on regeneration of basic hydrogen peroxide by electrochemical methods

Changchun Ke; Wenwu Chen; Xiaobo Xu; Jinglong Wang; Yushi Liu; Yuqi Jin; Fengting Sang

doi:10.1117/12.2065360

3 February 2015 Investigation on regeneration of basic hydrogen peroxide by electrochemical methods

Changchun Ke, Wenwu Chen, Xiaobo Xu, Jinglong Wang, Yushi Liu, Yuqi Jin, Fengting Sang

Proceedings Volume 9255, XX International Symposium on High-Power Laser Systems and Applications 2014; 92552L (2015) https://doi.org/10.1117/12.2065360
Event: XX International Symposium on High Power Laser Systems and Applications, 2014, Chengdu, China

Abstract

Two electrochemical methods for regeneration of Basic Hydrogen Peroxide (BHP) were investigated in this paper, which could be called one-step method and two-step method, respectively, distinguished by the number of steps during the regeneration process. The one-step method converts potassium chloride solution and oxygen directly to chlorine and BHP by a modified chlor-alkali cell with an oxygen cathode. For the one-step method, two reactors of different structure and corresponding regenerating process were designed. The experimental results showed that, for the continuous-type reactor, the highest peroxide concentration was 0.042 mol/L, while for batch-type reactor the highest peroxide concentration was 0.563 mol/L. The two-step method accomplishes the regeneration of BHP by a conventional chlor-alkali cell combined with a fuel cell reactor which could convert hydrogen and oxygen to peroxide in alkaline potassium hydroxide solution. A peroxide concentration of 2.450 mol/L was obtained for the two-step method.

Citation Download Citation

Changchun Ke, Wenwu Chen, Xiaobo Xu, Jinglong Wang, Yushi Liu, Yuqi Jin, and Fengting Sang "Investigation on regeneration of basic hydrogen peroxide by electrochemical methods", Proc. SPIE 9255, XX International Symposium on High-Power Laser Systems and Applications 2014, 92552L (3 February 2015); https://doi.org/10.1117/12.2065360

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