Effects of operational and structural parameters on cell voltage of industrial magnesium electrolysis cells
Effects of operational and structural parameters on cell voltage of industrial magnesium electrolysis cells
复制标题
工业镁电解槽运行和结构参数对槽电压的影响
DOI：
10.1007/s11705-015-1539-x
复制
发表时间：
2015
影响因子：
4.5
通讯作者：
Yu Jianguo
中科院分区：
文献类型：
--
作者：
Sun Ze;Liu Chenglin;Lu Guimin;Song Xingfu;Yu Jianguo
电场是镁电解过程的能量基础，是镁电解槽内多物理场的来源。在本研究中，建立了三维数值模型，并通过有限元分析对稳态电场进行了计算。在电场模拟的基础上，研究了电流强度、阳极厚度、阴极厚度、阴阳极间距等操作参数和结构参数对电池电压的影响。优化的目标是获得对镁电解过程能耗有显着影响的最小电阻电压。结果表明，电流强度对电压的影响可以忽略不计，而ACD的影响是明显的。此外，阳极和阴极的厚度与电压呈线性关系，阳极工作高度对电压也有显著影响。
Electric field is the energy foundation of the electrolysis process and the source of the multiphysical fields in a magnesium electrolysis cell. In this study, a three-dimensional numerical model was developed and used to calculate electric field at the steady state through the finite element analysis. Based on the simulation of the electric field, the operational and structural parameters, such as the current intensity, anode thickness, cathode thickness, and anode-cathode distance (ACD), were investigated to obtain the minimum cell voltage. The optimization is to obtain the minimum resistance voltage which has a significant effect on the energy consumption in the magnesium electrolysis process. The results indicate that the effect of the current intensity on the voltage could be ignored and the effect of the ACD is obvious. Moreover, there is a linear decrease between the voltage and the thicknesses of the anode and cathode; and the anodecathode working height also has a significant effect on the voltage.