Design Optimization of Highly Efficient SOEC Co-Electrolysis Processes
Design Optimization of Highly Efficient SOEC Co-Electrolysis Processes
复制标题
高效 SOEC 共电解工艺的设计优化
DOI：
10.1149/10911.0025ecst
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发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Sasaki Kanzunari
中科院分区：
文献类型：
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作者：
Nakashima Yuhei;Tachikawa Yuya;Sasaki Kanzunari
固体氧化物电解槽高温共电解水和二氧化碳作为一种高效的合成气生产方法，引起了人们的广泛关注。在这项研究中，我们专注于调查的H2O/CO2比的原料气SOEC燃料电极和气体和热循环上的合成气生产效率的影响进行了评估的质量和热量平衡分析。在增加供给到燃料电极的CO2流量的情况下，当进料气体组成被控制为H2O/CO2= 4.32时，由SOEC和燃料合成反应器组合系统产生最大量的甲烷，并且合成气产生效率变为93.1%。这些结果表明，合成气的生产效率显着依赖于SOEC共电解的操作条件和系统设计。
High-temperature co-electrolysis of water and carbon dioxide using solid oxide electrolysis cells (SOECs) has attracted much interest as an efficient synthesis gases production method. In this study, we focused on investigating the effects of the H2O/CO2 ratio of feed gas to the SOEC fuel electrode and gas and heat recycles on the syngas production efficiency were evaluated by mass and heat balance analysis. In the case of increasing CO2 flow rate supplied to the fuel electrode, the maximum amount of methane was produced by the SOECs and a fuel synthesis reactor combined system and the syngas production efficiency became 93.1% when the feed gas composition was controlled as H2O/CO2= 4.32. These results indicate that the syngas production efficiency significantly depended on the operation condition of SOEC co-electrolysis and the system design.