摘要
直接空气碳捕集(DAC)技术可通过捕集大气中的低浓度CO_(2),实现CO_(2)的永久封存或资源化利用,为水泥行业提供“净负排放”路径,其核心技术在于吸附剂的创新。本文系统总结了吸附剂的最新研究进展,并通过收集各类吸附剂实验数据、分析不同技术路线及实际应用案例,对比了液体吸附剂及固态吸附材料的特点。在水泥行业协同方面,提出了水泥窑余热驱动DAC再生,捕集CO_(2)矿化固废生成胶凝材料部分替代熟料,形成碳闭环(如“绿氢-DAC-矿化”体系)等观点,为推动DAC技术及其与水泥行业的深度融合提供了理论依据。
Direct Air Capture(DAC)technology can achieve permanent sequestration or resource utilization of CO_(2) by capturing low-concentration CO_(2) from the atmosphere,providing a"net-negative emissions"pathway for the cement industry.Its core innovation lies in the development of adsorbents.This article systematically summarizes recent research progress in adsorbents and compares the characteristics of liquid absorbents versus solid adsorbents by compiling experimental data,analyzing different technical routes,and examining actual application cases.Regarding cement industry integration,it proposes concepts such as using cement kiln waste heat to drive DAC regeneration,mineralizing captured CO_(2) with solid waste to produce cementitious materials as partial clinker substitutes,and establishing carbon-closed loops(e.g.,a"green hydrogen-DAC-mineralization"system).These insights provide a theoretical foundation for advancing the deep integration of DAC technology with the cement industry.
作者
张涵
顾春晗
苏明雪
李宁
ZHANG Han;GU Chunhan;SU Mingxue;LI Ning(CNBM Equipment Group,Hefei Cement Research&Design Institute Co.,Ltd.,Hefei Anhui 230051,China)
出处
《水泥技术》
2025年第4期19-28,43,共11页
Cement Technology
基金
中材国际前沿科学开放基金项目(2024ZC004)。
关键词
直接空气碳捕集
水泥行业
吸附剂
碳捕集装备
协同发展
direct air capture
cement industry
adsorbents
carbon capture equipment
synergistic development
