CO2 Direct Air Capture Technology Drives Low-carbon Development in Cement Industry
ZHANG Han
GU Chunhan
SU Mingxue
LI Ning
Abstract：Direct Air Capture(DAC)technology can achieve permanent sequestration or resource utilization of CO2 by capturing low-concentration CO2 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 CO2 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.
Keywords：direct air capturecement industryadsorbentscarbon capture equipmentsynergistic development
Publication Date：2025-07-25
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：11( 19-28,43 )