Direct air CO2 capture using coal fly ash derived SBA-15 supported polyethylenimine

• Published in: Carbon Capture Science & Technology Vol. 10; p. 100167
• Main Authors: Jia, Xiaohao, Wu, Zeen, Shi, Haodong, Fan, Yanfang, Zheng, Rongrong, Wang, Can
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.03.2024; Elsevier
• Subjects: Amine modified SBA-15; CO2 adsorbents; Coal fly ash; Direct air capture (DAC); Sub-ambient; Coal fly ash; Amine modified SBA-15; Direct air capture (DAC); Sub-ambient; CO2 adsorbents

•Wheat-like SBA-15-PEI70 with long channels exhibited the qe of 1.92 mmol/g (dry) and 3.48 mmol/g (humid, RH=78%) at 35°C with 400 ppm CO2/N2.•SBA-15-W-PEI70 with long channels showed a higher qe under ambient conditions, while SBA-15-R-PEI30 with short channels exhibited a higher qe under sub-ambie...