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目的实现质子交换膜水电解技术的工程化,满足实际应用的需要。方法在完成大电流密度膜电极的基础上,针对质子膜水电解系统流程、工作压力进行工程设计,研制了氧气产量≥3000 SL/h的单模块电解槽及系统装置,对该装置进行了电化学性能测试,并研究了压力对电流密度、电解电压、气体纯度、电解效率等因素的影响。结果研制的高压水电解装置具备稳定制氧能力,输出压力为5.0 MPa、纯度为99.5%,工作电流密度1.0～1.3 A/cm2时单池电压≤1.9 V。结论研制的高压质子交换膜水电解系统能够满足实际应用的需要。
Aim To realize the engineering of proton exchange membrane water electrolysis technology and meet the needs of practical application. Methods Based on the completion of high current density membrane electrode, a single-module electrolyzer with oxygen output ≥3000 SL / h and a system unit were developed for the design of proton membrane water electrolysis process and working pressure. Chemical performance test, and studied the pressure on the current density, electrolytic voltage, gas purity, electrolytic efficiency and other factors. Results The developed high-pressure water electrolysis unit has stable oxygen production capacity, the output pressure is 5.0 MPa, the purity is 99.5% and the single cell voltage is ≤1.9 V when the operating current density is 1.0 ~ 1.3 A / cm2. Conclusion The developed high-pressure proton exchange membrane water electrolysis system can meet the practical application needs.