2026-10-10T08:35:32Z https://api.figshare.com/v2/oai

oai:figshare.com:article/33699476 2026-09-13T13:09:16Z category_1 category_4 category_272 category_873 category_734 category_132 category_135 portal_63 item_type_2 month_year_09_2026

Advanced CO₂ Capture from Flue Gas by Promoting Amine Solvent Regeneration Using Dual-Functional Graphitized Packing Simi Li (24855164) Yunlong Wang (180471) Zhen Chen (129176) Lin Chen (54305) Shudan He (10712230) Bingling Yuan (13802294) Junhua Li (125998) Biophysics Biochemistry Environmental Sciences not elsewhere classified Chemical Sciences not elsewhere classified Biological Sciences not elsewhere classified Infectious Diseases Computational Biology week hydrothermal experiment various amine solvents total operating cost carbon layer reduce heat transfer limitations heat conduction rate 2 per tco practical packing stripper carbon modification strategy active fe sites efficient heat transfer catalytic solvent regeneration 3 </ sup flue gas provides 2 </ sub industrial emission reduction situ </ heat utilization flue gas temperature regeneration steel packing fe – efficient route effective strategy catalytic activity – c weak durability still suffers reliable approach reaction kinetics mild temperatures industrial perspective grade waste functional stainless excellent stability energy consumption energy barrier blank case 7 %, 5 %. Amine-based CO₂ capture from flue gas provides a reliable approach for industrial emission reduction, but still suffers from a high energy penalty due to high-temperature regeneration. Catalytic amine solvent regeneration has emerged as an effective strategy to enhance the CO₂ reaction kinetics at mild temperatures. However, the current powder catalysts face challenges of heat transfer limitations and weak durability in the practical packing stripper. Herein, we prepared a dual-functional stainless-steel packing with efficient heat transfer and catalytic activity through an <i>in situ</i> carbon modification strategy from an industrial perspective. The micron-thick graphitic carbon layer increases the heat conduction rate by 61.7%, while the active Fe sites (Fe–O–C) within the carbon layer reduce the energy barrier for CO₂ desorption by 36.5%. Moreover, the catalytic packing exhibits universal applicability for various amine solvents and excellent stability during a four-week hydrothermal experiment. The pilot-scale experiments (∼150 N m³ h^–1 flue gas) demonstrate that the modified packing could reduce the energy consumption to as low as 2.18 GJ per tCO₂, decreased by 28.8% compared to the blank case. The industrial-scale process simulation provides an efficient route for integration of low-grade waste-heat utilization and catalytic solvent regeneration, achieving a 49.4% reduction in the total operating cost of carbon capture (∼$16.2 per tCO₂). 2026-09-13T00:00:00Z Dataset Media 10.1021/acs.est.6c07676.s003 https://figshare.com/articles/media/Advanced_CO_sub_2_sub_Capture_from_Flue_Gas_by_Promoting_Amine_Solvent_Regeneration_Using_Dual-Functional_Graphitized_Packing/33699476 CC BY-NC 4.0