石油化工2026，Vol.55Issue(5)：712-719,8.DOI:10.3969/j.issn.1000-8144.2026.05.009
单乙醇胺-乙醇-水三元吸收剂捕集CO2的性能调控与机理研究
Performance regulation and mechanism of CO2 capture by monoethanolamine-ethanol-water ternary absorbent
摘要
Abstract
The CO2 capture and regeneration performance of monoethanolamine(MEA)-ethanol-water ternary absorbent were investigated.By optimizing MEA content,solvent ratio,absorption temperature,and regeneration conditions,the effects of the ternary absorbent on CO2 absorption load,absorption rate,regeneration efficiency,and cyclic stability were thoroughly explored.The results indicate that under conditions of MEA content of 20%(φ)and water and ethanol each at 40%(φ)(A3),the system achieves a maximum absorption load of 0.66 mol/mol at 303.15 K,significantly superior to conventional aqueous MEA solutions.Regeneration was performed for 1 h at 383.15 K.The regeneration efficiency reaches 75.59%,and the A3 ternary absorbent retains 56.1%regeneration efficiency after 6 cycles,with regeneration energy consumption being notably lower than that of conventional aqueous MEA solutions.Corrosion tests reveal that the 180 d corrosion rate of carbon steel in the A3 ternary absorbent does not exceed 13%.关键词
CO2捕集/复合吸收剂/单乙醇胺/吸收负荷/再生性能/腐蚀性能Key words
CO2 capture/composite absorbent/monoethanolamine/absorption load/regeneration performance/corrosion performance分类
化学化工引用本文复制引用
魏书洲,江珊,于立元,刘美玲,许晨欢,顾永正..单乙醇胺-乙醇-水三元吸收剂捕集CO2的性能调控与机理研究[J].石油化工,2026,55(5):712-719,8.基金项目
浙江省科技计划项目(2023C03156). （2023C03156）
