直接电加热的SiC泡沫乙醇水蒸气催化重整制氢的数值模拟

宋旭; 鲍泽威; 宗文刚

doi:10.19912/j.0254-0096.tynxb.2024-1842

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太阳能学报 ›› 2026, Vol. 47 ›› Issue (2) : 768-775. DOI: 10.19912/j.0254-0096.tynxb.2024-1842

直接电加热的SiC泡沫乙醇水蒸气催化重整制氢的数值模拟

宋旭, 鲍泽威, 宗文刚

作者信息 +

NUMERICAL SIMULATION OF HYDROGEN PRODUCTION BY CATALYTIC REFORMING OF ETHANOL WATER STEAM FROM SiC FOAM WITH DIRECT ELECTRICAL HEATING

Song Xu, Bao Zewei, Zong Wen’gang

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文章历史 +

摘要

利用数值模拟方法建立一种直接电加热SiC泡沫催化剂载体的乙醇水蒸气重整制氢反应器模型。基于所建立的数学模型对重整反应器性能进行研究。重点分析入口温度、水醇比、入口流速和电加热功率等因素的影响。以乙醇转化率和反应物的组分浓度作为评价指标。研究结果表明,升高入口温度和电加热功率能为重整反应提供更多热量,从而提高反应温度,促进重整反应进行。当入口温度从873.15 K提高至1073.15 K时,乙醇转化率从95.5%显著提高至98.2%;当电流功率从14 W增至24 W时,乙醇转化率由94.6%升至98.9%。此外,增大水醇比和减小入口流速也可有效提高乙醇转化率。

Abstract

This study employs numerical simulations to develop a model for an ethanol steam reforming reactor aimed at hydrogen production, featuring the direct electrical heating of a SiC foam catalyst carrier. The model investigates reactor performance under varying operating conditions, including inlet temperature, water-to-ethanol ratio, inlet flow rate, and electrical heating power, with ethanol conversionrate and reactant composition used as evaluation metrics. The results reveal that increasing inlet temperature and electrical heating power effectively raises the reaction temperature, thereby accelerating the reforming reaction. Specifically, ethanol conversionrate increases significantly from 95.5% to 98.2%, as the inlet temperature rises from 873.15 K to 1073.15 K. Similarly, boosting electrical heating power from 14 W to 24 W improves ethanol conversionrate from 94.6% to 98.9%. Furthermore, optimizing the water-to-ethanol ratio and reducing the inlet flow rate are also effective strategies for further enhancing ethanol conversion.

导出引用

宋旭, 鲍泽威, 宗文刚. 直接电加热的SiC泡沫乙醇水蒸气催化重整制氢的数值模拟[J]. 太阳能学报. 2026, 47(2): 768-775 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1842

Song Xu, Bao Zewei, Zong Wen’gang. NUMERICAL SIMULATION OF HYDROGEN PRODUCTION BY CATALYTIC REFORMING OF ETHANOL WATER STEAM FROM SiC FOAM WITH DIRECT ELECTRICAL HEATING[J]. Acta Energiae Solaris Sinica. 2026, 47(2): 768-775 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1842

中图分类号： TK91

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