太阳能驱动甲烷干重整泡沫反应器性能研究

袁电洪; 徐福斌; 龚海艇; 陈臻; 范永胜; 郑雪蓉

doi:10.19912/j.0254-0096.tynxb.2025-0803

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太阳能学报 ›› 2026, Vol. 47 ›› Issue (9) : 387-394. DOI: 10.19912/j.0254-0096.tynxb.2025-0803

太阳能驱动甲烷干重整泡沫反应器性能研究

袁电洪¹, 徐福斌¹, 龚海艇¹, 陈臻¹, 范永胜², 郑雪蓉³

作者信息 +

STUDY ON PERFORMANCE OF SOLAR-DRIVEN DRY REFORMING OF METHANE POROUS FOAM REACTOR

Yuan Dianhong¹, Xu Fubin¹, Gong Haiting¹, Chen Zhen¹, Fan Yongsheng², Zheng Xuerong³

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文章历史 +

摘要

通过构建镍基催化剂（Ni/MgAlO_x）与多孔泡沫载体的复合催化体系,系统探究镍（Ni）、镍铬合金（NiCr）和碳化硅（SiC）3种载体对太阳能驱动甲烷干重整（DRM）系统性能的影响机制。结果表明,Ni/MgAlO_x/SiC泡沫反应器性能最优,其CH₄和CO₂的平均转化率分别达到75.56%和81.79%,太阳能燃料效率达38.86%,较Ni和NiCr泡沫反应器分别提高了3.14和5.26个百分点。性能提升主要归因于SiC泡沫优异的导热性能,使反应器轴向温度梯度显著降低至59 °C,有效降低了温度不均匀性,拓宽了高效催化反应域。此外,SiC泡沫载体具有更高的机械强度,能够有效抵抗积碳产生的内应力,提升系统运行稳定性。因此,SiC泡沫反应器在65 h的连续测试中性能未出现明显衰减,而NiCr和Ni泡沫反应器分别于42和24 h出现严重性能衰减。

Abstract

This study presents a composite catalytic system integrating a nickel-based catalyst （Ni/MgAlOx） with porous foam supports. The investigation systematically examines three representative foam materials—nickel （Ni）, nickel-chromium alloy （NiCr）, and silicon carbide （SiC）—focusing on their distinct influences on solar-driven dry reforming of methance（DRM） performance. Experimental results demonstrate that the Ni/MgAlO_x/SiC foam reactor exhibits optimal catalytic performance, achieving average CH₄ and CO₂ conversion rates of 75.56% and 81.79%, respectively, with a solar-to-fuel efficiency of 38.86%, representing improvements of 5.26 and 3.14 percentage points over NiCr and Ni foam reactors, respectively. The enhanced performance primarily stems from SiC foam’s superior thermal conductivity, which reduces the axial temperature gradient from 167 ℃ （observed for Ni foam） to 59 ℃, thereby broadening the catalytic reaction domain. Furthermore, the SiC foam support exhibits superior mechanical strength that effectively resists internal stress caused by carbon deposition, thereby maintaining structural integrity and enhancing system operational stability. Consequently, the SiC foam reactor demonstrates no significant performance degradation during a 65-hour continuous test, whereas NiCr and Ni foam reactors experience severe performance deterioration at 42 hours and 24 hours, respectively. This study elucidates the synergistic mechanism of thermal conductivity and mechanical strength of foam supports on DRM performance, providing an experimental basis for material selection and thermo-mechano-chemical synergistic design of solar-driven DRM reactors.

导出引用

袁电洪, 徐福斌, 龚海艇, 陈臻, 范永胜, 郑雪蓉. 太阳能驱动甲烷干重整泡沫反应器性能研究[J]. 太阳能学报. 2026, 47(9): 387-394 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0803

Yuan Dianhong, Xu Fubin, Gong Haiting, Chen Zhen, Fan Yongsheng, Zheng Xuerong. STUDY ON PERFORMANCE OF SOLAR-DRIVEN DRY REFORMING OF METHANE POROUS FOAM REACTOR[J]. Acta Energiae Solaris Sinica. 2026, 47(9): 387-394 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0803

中图分类号： TQ426.6

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