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OA
Performance regulation and mechanism of CO2 capture by monoethanolamine-ethanol-water ternary absorbent
研究了单乙醇胺(MEA)-水-乙醇三元吸收剂对CO2 的捕集与再生性能.通过优化MEA 含量、溶剂配比、吸收温度及再生条件,探讨了三元吸收剂对 CO2 吸收负荷、吸收速率、再生效率及循环稳定性的影响规律.实验结果表明,在 MEA含量为 20%(φ)、水与乙醇各占 40%(φ)(A3)条件下,体系在 303.15 K 时获得最大吸收负荷 0.66 mol/mol,显著优于传统MEA 水溶液;在 383.15 K 下再生 1 h,再生效率达 75.59%,且 A3 三元吸收剂在 6 次循环后仍保持 56.1%再生效率,再生能耗显著低于传统MEA水溶液.腐蚀性能测试结果显示,180 d内A3三元吸收剂对碳钢的腐蚀率不超过13%.
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%.
魏书洲;江珊;于立元;刘美玲;许晨欢;顾永正
国能(北京)低碳科技有限责任公司,北京 100025||国家能源煤基能源碳捕集利用与封存技术研发中心,北京 100101||河北省燃煤电站污染防治技术创新中心,河北 廊坊 065201浙江菲达环保科技股份有限公司,浙江 诸暨 311800浙江菲达环保科技股份有限公司,浙江 诸暨 311800浙江菲达环保科技股份有限公司,浙江 诸暨 311800国能(北京)低碳科技有限责任公司,北京 100025||国家能源煤基能源碳捕集利用与封存技术研发中心,北京 100101国能(北京)低碳科技有限责任公司,北京 100025||国家能源煤基能源碳捕集利用与封存技术研发中心,北京 100101||河北省燃煤电站污染防治技术创新中心,河北 廊坊 065201
化学化工
CO2捕集复合吸收剂单乙醇胺吸收负荷再生性能腐蚀性能
CO2 capturecomposite absorbentmonoethanolamineabsorption loadregeneration performancecorrosion performance
《石油化工》 2026 (5)
712-719,8
浙江省科技计划项目(2023C03156).
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