为了简化热化学硫碘循环制氢流程，构建了基于HI电解的新型硫碘循环制氢系统。通过建立HI电解过程的数学模型和自定义模块，利用Aspen Plus软件对该系统进行流程模拟，计算系统质量与能量平衡，评估系统热效率，进行灵敏度分析。结果表明：该系统H2和O2的产出率分别为10 L/h和5 L/h。在考虑废热回收的情况下，系统的最高理论热效率为31.1％；通过灵敏度分析发现，HI电解部分的耗电量随着质子传递数t+的增加而降低，硫酸分解转化率和精馏塔塔顶采出率变化对硫酸分解部分能耗的影响显著。

In order to simplify the process of thermochemical sulfuriodine (SI) cycle for hydrogen production, a new sulfuriodine cycle for hydrogen production system based on HI electrolysis was constructed.The mathematical model and the userdefined module of HI electrolysis process were established, and then the system process was simulated by using Aspen Plus software.The mass and energy balances of system were calculated,the thermal efficiency of system was evaluated, and the sensitivity analysis was conducted.The research results show that the system produces H2 of 10 L/h and O2 of 5 L/h respectively.The maximum theoretical thermal efficiency of the system reaches 31.1% considering waste heat recycling.Sensitivity analysis shows that the power consumption of HI electrolysis section decreases with the increase of proton transfer number t+,while the conversion rate of sulfuric acid decomposition and the top recovery rate of distillation column have significant influence on the energy consumption of sulfuric acid decomposition section.

TK911

国家自然科学基金（51606128，51706144）；上海市教育发展基金会和上海市教育委员会“晨光计划”（18CG51）；上海市地方高校能力建设项目（18060502600）