热化学储热钙循环改性强化研究进展

doi:10.3969/j.issn.2097-0706.2025.12.001

摘要/Abstract

摘要：

综述了钙循环热化学储热技术的研究进展，重点分析了钙基材料的物化特性、改性方法、反应器设计及系统集成的研究现状。介绍了钙基材料的主要类型，包括天然钙基材料、化学合成钙基材料、掺杂钙基材料、复合钙基材料等，详细讨论了其物理特性（颗粒尺寸、比表面积、孔隙结构、热导率和机械强度）和化学特性对储热性能的影响。对钙基材料的物化特性进行了深入探讨，指出其对储热效率和循环稳定性具有显著影响。介绍了钙基材料的改性方法，包括物理改性和化学改性，其中物理改性涉及颗粒尺寸控制和载体添加，而化学改性包括掺杂金属氧化物和表面涂层。通过这些方法，可显著提升钙基材料的循环稳定性和抗烧结性。接着，讨论了钙循环储热反应器及系统的设计与优化，包括固定床、流化床和其他新型反应器。这些反应器在传热传质效率、颗粒损耗平衡及系统集成灵活性方面具有各自的优势和挑战。对不同反应器与系统集成的协同效应进行分析，进一步探讨了钙循环储热技术的储热密度、机械强度优势及当前面临的材料失活、系统效率和经济性等挑战。对未来研究方向进行展望，指出需进一步开发高稳定性材料、优化反应器设计并进行全生命周期经济分析，以推动钙循环储热技术的商业化应用。

关键词: 钙循环, 热化学储热, 改性方法, 钙基材料, 反应器设计

Abstract:

Recent advances in calcium looping thermochemical heat storage technologies are summarized， with a focus on the current research status of physicochemical properties， modification strategies， reactor design， and system integration of calcium-based materials. The main types of calcium-based materials are introduced， including naturally occurring， chemically synthesized， doped， and composite calcium-based materials， followed by a detailed discussion of how their physical characteristics and chemical properties （particle size， specific surface area， pore structure， thermal conductivity， and mechanical strength） influence heat storage performance. The physicochemical properties of these materials are thoroughly discussed， indicating their significant influence on heat storage efficiency and cyclic stability. The modification methods for calcium-based materials are introduced in detail， including physical modification such as particle size control and support addition， and chemical modification like metal oxide doping and surface coating. Through these methods， the cyclic stability and sintering resistance of calcium-based materials can be significantly enhanced. The design and optimization of calcium looping heat storage reactors and systems are discussed， including fixed-bed， fluidized-bed， and other novel reactor types. These reactors exhibit respective advantages and challenges in terms of heat and mass transfer efficiency， particle attrition balance， and system integration flexibility. The synergistic effects between reactor types and system configurations are analyzed， and the advantages of calcium looping heat storage in terms of heat storage density and mechanical strength are further explored， as well as challenges such as material deactivation， low system efficiency， and economic feasibility. Future research directions are outlined， highlighting the need to further develop highly stable materials， optimize reactor design， and conduct full life-cycle techno-economic analysis to promote the commercial application of calcium looping thermochemical heat storage technology.

Key words: calcium looping, thermochemical energy storage, modification method, calcium-based materials, reactor design

中图分类号:

TK01：TM471

耿博辰, 石鑫, 熊亚选, 蒋泽龄. 热化学储热钙循环改性强化研究进展[J]. 综合智慧能源, 2025, 47(12): 1-13.

GENG Bochen, SHI Xin, XIONG Yaxuan, JIANG Zeling. Research progress on modification methods for calcium looping thermochemical heat storage[J]. Integrated Intelligent Energy, 2025, 47(12): 1-13.

图/表 2

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改性方法	比表面积/(m²·g^-1)	反应速率常数/(min^-1)	参考文献
未改性	10	0.01	[32,37]
球磨处理	50	0.05	[26,32]
高温煅烧	30	0.03	[29,33]
CaO-SiO₂	80	0.10	[36]