· 논문명 : Direct air capture with solid sorbents: Adsorbent design, process engineering, and CO2 conversion

· 저   자 : Muhammad Hassan,  Changdon Shin, Taekgi Lee, Seunghyun Lee , Somnath Chowdhury, 

                   Hyuk Taek Kwon, Sung Gu Kang*, Sol Ahn*, Yongchul G. Chung*

· 게재지 : Chemical Engineering Journal (2026, 534, 175117)

· 초록

Direct air capture (DAC) using solid sorbents is a promising negative-emissions technology, but its large-scale deployment

remains constrained by coupled challenges in adsorbent performance, process efficiency, and technoeconomic viability. 

This review examines recent progress in solid-sorbent DAC through an integrated perspective that connects adsorbent 

design with process operation and system-level cost considerations. We summarize advances in physisorbent- and

chemisorbent-based materials developed for ultradilute CO2 capture, with particular emphasis on amine-functionalized 

sorbents and porous frameworks evaluated under realistic humidity and temperature conditions. Key process 

configurations, including temperature swing adsorption (TSA), temperature–vacuum swing adsorption (TVSA), and steam-

assisted variants, are critically compared in terms of regeneration kinetics, energy demand, and operational trade-offs. 

We further review recent technoeconomic analyses to identify dominant cost drivers, scale-up uncertainties, and design 

pathways for reducing energy consumption and capital intensity. Finally, emerging approaches for CO2 conversion using

porous materials are discussed, with an emphasis on their compatibility with DAC-derived CO2 streams and their potential

role in improving overall system economics.