摘要
钙循环法被认为是捕集二氧化碳的有效途径,其通过利用氧化钙基吸收剂和二氧化碳之间的可逆反应来实现吸收剂循环使用。近年来,氧化钙基吸收剂因其成本低、二氧化碳吸收率高、原料来源广等优点备受关注,并广泛应用于制氢、水泥行业中的二氧化碳捕集。但是,该吸收剂存在再生温度高、氧化钙活性组分易烧结、吸收二氧化碳性能迅速下降等问题阻碍了其工业化应用。基于此,综述了近年来高性能氧化钙基吸收剂的制备方法,分析了该类型吸收剂在各领域应用中存在的问题,并提出了实现氧化钙基吸收剂低温循环利用的技术路线,为实现大规模工业碳捕集提供参考。
Calcium looping cycle method has been considered as an effective way to capture carbon dioxide.This method takes advantage of a reversible reaction between calcium oxide⁃based sorbents and carbon dioxide in order to realize the re⁃cycling use of sorbents.In recent years,more attention has been paid on calcium oxide⁃based sorbents due to the low cost,high carbon dioxide sorption performance and wide source of raw materials,which have been widely used in hydrogen pro⁃duction and cement industry to capture carbon dioxide.However,the disadvantages of calcium oxide⁃based sorbents,such as high regeneration temperature,easily sintering of active components and rapid decline of carbon dioxide sorption perfor⁃mance,all hinder its industrial application.The preparation methods of calcium oxide⁃based sorbents with high performance were summarized and the existing problems in various application fields were analyzed.The technical routes for realizing the low temperature cycle of calcium oxide⁃based sorbents were put forward to provide reference for realizing large⁃scale indus⁃trial carbon capture.
作者
赖晓玲
周微
臧甲忠
董子超
胡明亮
孙绍宸
LAI Xiaoling;ZHOU Wei;ZANG Jiazhong;DONG Zichao;HU Mingliang;SUN Shaochen(CenerTech Tianjin Chemical Research and Design Institute Co.Ltd.,Tianjin 300131,China)
出处
《无机盐工业》
CAS
CSCD
北大核心
2023年第5期16-23,共8页
Inorganic Chemicals Industry
基金
中国海洋石油集团有限公司CCUS重大专项“低能耗无二氧化碳排放天然气水蒸气低温重整制氢新技术”(KJGG-2022-12-CCUS-030403)。
关键词
钙循环法
钙基吸收剂
吸收剂制备
低温再生
calcium looping cycle method
calcium⁃based absorbent
preparation of absorbent
regeneration under the low⁃temperature
