可再生能源2025，Vol.43Issue(2)：191-199,9.
太阳能驱动的甲烷水蒸气重整膜反应器性能研究
Study on the performance of steam methane reforming membrane reactor driven by solar energy
摘要
Abstract
Steam methane reforming membrane reactor removes hydrogen through a hydrogen-selective permeation membrane,which can promote the forward movement of the reaction,improve methane conversion rate with reduced reaction temperature,and achieve thermochemical storage under medium-temperature of trough solar collector.However,the characteristics of multi-physical field coupling in the reactor are complex,and the influence of operating parameters on the performance of the reactor needs to be further investigated.The steam methane steam reforming reaction in the membrane reactor driven by solar at mid temperature was taken as the research object in this paper.The multi-physics coupling model of fluid flow,heat/mass transfer and chemical reactions in the reactor was established by using ANSYS FLUENT,and the effects of the key operating parameters(i.e.,inlet mass flow rate,temperature,reaction pressure,water-to-carbon ratio and permeation pressure)on the reactor chemical and thermodynamic performances were studied.The results show that the methane conversion rate and energy efficiency are negatively correlated with the inlet flow rate.The conversion rate of methane is positively correlated with reaction temperature.The energy efficiency first increases and then decreases with the increase of temperature,existing a peak value.When the inlet flow rate is low,the methane conversion rate and energy efficiency increase with the increase of the reaction pressure,while the methane conversion rate and energy efficiency decrease with the increase of reaction pressure when the inlet flow rate is high.The increase of the water to carbon ratio can significantly improve the chemical reaction performance but reduce the energy efficiency.The lower the pressure on the permeation side,the better the reactor performance.The research results are of great significance for high-grade solar thermal utilization.关键词
甲烷重整/膜反应器/热化学储能/多物理场耦合Key words
steam methane reforming/membrane reactor/thermochemical energy storage/multi-physics coupling分类
能源科技引用本文复制引用
刘宗鑫,王晶钰,沈雷雷,王磊,姬长发..太阳能驱动的甲烷水蒸气重整膜反应器性能研究[J].可再生能源,2025,43(2):191-199,9.基金项目
国家自然科学基金(52206115) （52206115）
陕西省自然科学基础研究计划(2022JQ-401) （2022JQ-401）
陕西省教育厅一般专项科研计划项目(21JK0768). （21JK0768）
