化工进展2025，Vol.44Issue(12)：6798-6812,15.DOI:10.16085/j.issn.1000-6613.2025-1109
基于表面活性剂改性单乙醇胺的新型多流态CO2吸收塔传质强化
Foaming decarbonization performance of surfactant-modified monoethanolamine and application in co-current reactor
摘要
Abstract
This study proposes a multi-flow CO2 absorption tower integrating atomization,foaming,and packing.By modifying the monoethanolamine(MEA)solution with the surfactant AEO-9,the CO2 removal efficiency was significantly improved.Experimental results showed that the introduction of AEO-9 reduced the surface tension of MEA by approximately 49.5％,effectively promoting foaming and subsequently increasing CO2 removal efficiency by 11.3％—31.8％.AEO-9 had minimal impact on solution viscosity;however,the viscosity of the rich solvent increased by about 37.5％,which suppressed foam stability in the later stages of the reaction.Characterization by 13C NMR and FTIR confirmed that CO2 absorption products significantly influenced the physicochemical properties of the solution.Orthogonal experiments and range analysis identified liquid flow rate and MEA concentration as the key factors affecting CO2 removal efficiency.The optimal operating conditions were determined to be a gas flow rate of 60L/min,liquid flow rate of 500mL/min,CO2 concentration of 8％,and MEA concentration of 30％.Under these conditions,the CO2 absorption efficiency increased by more than 48.42％,with a total absorption rate reaching 1.198kmol/(m3·h).This study provides important guidance for the design optimization and industrial application of multi-flow CO2 absorption towers.关键词
表面活性剂改性/多流态CO2吸收/CO2脱除效率/传质强化/吸收机理Key words
surfactant-modified/multi-phase-flow CO2 absorption/decarbonization effectiveness/mass transfer mechanisms/absorption enhancement分类
化学化工引用本文复制引用
王泽宇,葛煜聪,杨丽,张真真,衡迅瑄,刘方,杨霄..基于表面活性剂改性单乙醇胺的新型多流态CO2吸收塔传质强化[J].化工进展,2025,44(12):6798-6812,15.基金项目
国家重点研发计划(2022YFE0130000) （2022YFE0130000）
徐州市科技项目(KC23077) （KC23077）
江苏省自然科学基金(BK20240208) （BK20240208）
中央高校基本科研业务费专项基金(2023KYJD1005). （2023KYJD1005）
