%0 Journal Article %T 固体氧化物电解槽共电解二氧化碳与水制备合成气的产物调控模拟研究
Simulation Study on Product Regulation of Co-Electrolysis of Carbon Dioxide and Water in Solid Oxide Electrolysis Cell for Synthesis Gas Production %A 张茂想 %A 李梦飞 %A 傅智嘉 %J Modeling and Simulation %P 404-416 %@ 2324-870X %D 2025 %I Hans Publishing %R 10.12677/mos.2025.143233 %X 通过对二氧化碳进行科学有效的利用是降低温室效应对环境影响的行之有效的方法。将二氧化碳与水一起电解制取合成气是目前较为前沿的研究方向。本文采用COMSOL仿真软件建立固体氧化物电解槽共电解二氧化碳和水模型，在确定电流密度、温度等条件下，分别讨论了进口反应物组成、进口质量流率、流动方向等对共电解产物的影响，结果表明进口反应物组成比例是对产物中氢气与一氧化碳有直接影响，但是由于水汽变换反应的存在，当反应物中的水和二氧化碳比例在4/1左右，产物中氢气和一氧化碳比例才达到3，此时的合成气适合进行甲烷的生产。反应物质量流率决定了整体的反应速率，无法控制单一物质产率，当质量流率过高时，反应物在电解槽内停留时间较短，不利于产物生成。流动方向对产物影响不大，但对电解槽温度分布有较大影响。
Scientific and effective utilization of carbon dioxide is an effective method to reduce the impact of greenhouse effect on the environment. The electrolysis of carbon dioxide and water to produce synthesis gas is currently a relatively advanced research direction. This article uses COMSOL simulation software to establish a model for co-electrolysis of carbon dioxide and water in a solid oxide electrolysis cell. Under the conditions of determining current density, temperature, etc., the effects of inlet reactant composition, inlet mass flow rate, flow direction, etc. on the co-electrolysis products are discussed. The results show that the composition ratio of inlet reactants has a direct impact on the hydrogen and carbon monoxide in the products. However, due to the presence of water vapor shift reaction, when the ratio of water and carbon dioxide in the reactants is around 4/1, the ratio of hydrogen and carbon monoxide in the products reaches 3, and the synthesis gas is suitable for methane production. The mass flow rate of reactants determines the overall reaction rate and cannot control the yield of a single substance. When the mass flow rate is too high, the residence time of reactants in the electrolytic cell is short, which is not conducive to product generation. The flow direction has little effect on the product, but has a significant impact on the temperature distribution of the electrolytic cell. %K 固体氧化物电解槽， %K 共电解， %K 合成气
Solid Oxide Electrolytic Cell %K Co-Electrolysis %K Synthesis Gas %U http://www.hanspub.org/journal/PaperInformation.aspx?PaperID=110154