钙基吸附剂的CO_(2)捕集及其热化学储能研究进展  

Research progress of CO_(2) capture by calcium based adsorbent and thermochemical energy storage

作　　者：罗聪 罗童[1,2] 徐勇庆 李小姗 邬凡 张立麒[1,2] LUO Cong;LUO Tong;XU Yongqing;LI Xiaoshan;WU Fan;ZHANG Liqi(School of Energy and Power Engineering,Huazhong University of Science and Technology,Wuhan 430074,China;State Key Laboratory of Coal Combustion,Huazhong University of Science and Technology,Wuhan 430074,China)

机构地区：[1]华中科技大学能源与动力工程学院,湖北武汉430074 [2]华中科技大学煤燃烧国家重点实验室,湖北武汉430074

出　　处：《华中科技大学学报（自然科学版）》2022年第7期101-109,共9页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(52176109).

摘　　要：针对应用于钙循环(CaL)的钙基吸附剂在循环反应过程中易烧结,导致反应活性快速衰减,影响CaL的规模化应用问题,综述了7种能提升钙基吸附剂的循环CO_(2)捕集能力及储热密度的方法.煅烧有机钙基材料、合成纳米颗粒、添加高熔点骨架物等方法的改性效果很好,但它们的制备成本较高;筛选天然钙基吸附剂、高温蒸气热活化等方法的制备成本较低,但它们的改性效果略低;相比之下,碱金属盐改性和含钙固废转化为吸附剂等方法可以在制备成本较低的条件下,获得较好的改性效果.寻找低成本、高性能的钙基吸附剂是未来CaL技术的一个重要研究方向.The calcium-based adsorbent used in the calcium looping technology(CaL)is easily sintered in the process of cyclic reactions,which results in the rapid attenuation of reaction activity and affects the large-scale application of CaL.Aiming at this problem,seven methods to improve the cyclic CO_(2) capture capacity and heat storage density of the calcium-based adsorbent were reviewed.The methods of calcining the organic calcium-based materials,synthesizing the nanoparticles and adding high melting point framework show good modification effects,but the preparation cost is relatively high.The methods of screening natural calcium-based adsorbent and thermal activation by high temperature steam has lower preparation cost,but the modification effects are relatively worse.The methods of modifying calcium-based adsorbent by alkali metal salt and conversing the calcium-contained solid waste into adsorbent show better modification effect with relatively low preparation cost.Seeking for calcium based adsorbents with low cost and high performance is an important research direction of CaL technology in the future.

关 键 词：钙基吸附剂 钙循环技术 CO_(2)捕集 热化学储能 烧结 吸附剂改性 

分 类 号：TK01[动力工程及工程热物理]