Fe2O3/Al2O3氧载体制备方法对甲烷重整产氢特性的影响

IF 3.9 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Science and Engineering: B Pub Date : 2025-04-21 DOI:10.1016/j.mseb.2025.118315

Yi Liu , Ming Li , Zhenhua Gu , Jing Chen , Zhiqiang Li , Liangnuo Yang , Yu Chen

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引用次数: 0

摘要

本文采用共沉淀法（CPM）、浸渍法（IM）、溶胶-凝胶法（SGM）和机械球磨法（MBMM）合成了 Fe2O3/Al2O3 氧载体（OCs），并分析了它们对氢气（H2）生产性能的影响。结果表明，这些方法都会影响 OC 的比表面积。CPM 和 MBMM 产生的 OC 值最高（8.00 和 8.65 m2/g），而 SGM 产生的 OC 值最低。不过，这些方法都不会影响 OC 的物相组成和结构。在还原阶段，CPM 的合成气产量、CO 选择性、H2 选择性和 CH4 转化效率最高。这种方法还能在 15 分钟内保持 2 的最佳 H2/CO 比率。经过多次循环，CPM 的最大 H2 产量为 3.74 mmol/g，最终稳定在 2 mmol/g。综合分析证实，在化学循环蒸汽甲烷重整生产 H2 的过程中，CPM 产生的 OC 更为出色。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Influence of Fe2O3/Al2O3 oxygen carrier preparation methods on the hydrogen production characteristics of methane reforming

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Influence of Fe2O3/Al2O3 oxygen carrier preparation methods on the hydrogen production characteristics of methane reforming

Herein, Fe₂O₃/Al₂O₃ oxygen carriers (OCs) were synthesized using the co-precipitation method (CPM), impregnation method (IM), sol–gel method (SGM), and mechanical ball milling method (MBMM) to analyze their influence on the hydrogen (H₂) production performance. Results indicated that these methods affected the OCs’ specific surface area. The CPM and MBMM yielding OCs with the highest values (8.00 and 8.65 m2/g), while the SGM yielded the lowest. However, none of these methods affected the physical phase composition and structure of the OCs. During the reduction stage, syngas production, CO selectivity, H₂ selectivity, and CH₄ conversion efficiency were the highest with the CPM. This method also maintained an optimal H₂/CO ratio of 2 for 15 min. Over multiple cycles, the CPM yielded a maximum H₂ output of 3.74 mmol/g, eventually stabilizing at 2 mmol/g. A comprehensive analysis confirmed that the CPM produced superior OCs for chemical-looping steam methane reforming for H₂ production.

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来源期刊

Materials Science and Engineering: B 工程技术-材料科学：综合

CiteScore

5.60

自引率

2.80%

发文量

481

审稿时长

3.5 months

期刊介绍： The journal provides an international medium for the publication of theoretical and experimental studies and reviews related to the electronic, electrochemical, ionic, magnetic, optical, and biosensing properties of solid state materials in bulk, thin film and particulate forms. Papers dealing with synthesis, processing, characterization, structure, physical properties and computational aspects of nano-crystalline, crystalline, amorphous and glassy forms of ceramics, semiconductors, layered insertion compounds, low-dimensional compounds and systems, fast-ion conductors, polymers and dielectrics are viewed as suitable for publication. Articles focused on nano-structured aspects of these advanced solid-state materials will also be considered suitable.