流场结构对过氧化氢产量影响的模拟和实验研究  

Simulation and experimental study on the effect of flow field structure on hydrogen peroxide production

作　　者：郭耀暄 徐献芝[1] GUO Yaoxuan;XU Xianzhi(Department of Modern Mechanics,University of Science and Technology of China,Hefei 230027,Anhui,China)

机构地区：[1]中国科学技术大学近代力学系,安徽合肥230027

出　　处：《实验力学》2024年第1期43-55,共13页Journal of Experimental Mechanics

摘　　要：阴极膜还原法制备过氧化氢是通过阴极膜上氧气的二电子还原反应生成过氧化氢。阴极膜上氧气发生还原反应时,二电子还原反应产物过氧化氢积聚在膜面会抑制后续反应,影响制备效果。为进一步提高制备过氧化氢的效率,本文通过改变阴极室结构与阴极液流速,并采用数值模拟分析相应条件下流场结构与过氧化氢浓度分布情况,筛选出有利于过氧化氢制备的结构和流速条件;通过研究阴极室结构和流速对过氧化氢产量的影响,提出了更高效制备过氧化氢的方案,所得结果可为阴极膜还原法制备过氧化氢的工业化进程提供理论依据。The cathodic membrane reduction method for preparing hydrogen peroxide involves the generation of hydrogen peroxide through a two-electron reduction reaction of oxygen on the cathodic membrane.When the reduction reaction of oxygen occurs on the cathode membrane,the accumulation of hydrogen peroxide,a product of the two-electron reduction reaction,on the membrane surface will inhibit the subsequent reaction and affect the preparation effect.Therefore,suitable working conditions need to be selected in production to improve the preparation ability.Change the structure of the cathode chamber and the flow rate of the cathode liquid,and analyze the flow field structure and hydrogen peroxide concentration distribution under corresponding conditions through numerical simulation.Screen out the structure and flow rate conditions that are conducive to hydrogen peroxide preparation,conduct experimental verification,study the influence of the cathode chamber structure and flow rate on hydrogen peroxide production,and propose a more efficient plan for hydrogen peroxide preparation,this provides further theoretical support for the industrial process of preparing hydrogen peroxide by cathodic membrane reduction method.

关 键 词：阴极膜还原法 流场 流速 数值模拟 浓度分布 

分 类 号：O351[理学—流体力学]