沈丽,刘凡,沈遥,张宇驰,李素静,李伟

• 1:浙江大学 化学工程与生物工程学院，浙江 杭州 310027

摘要(Abstract)：

CO₂引起的全球变暖日益显著。工业上普遍使用的CO₂捕集技术为一乙醇胺（MEA）化学吸收法，具有再生能耗高的缺点。为降低再生能耗，提出新型相变吸收剂——N-氨乙基哌嗪（AEP）/正丙醇水溶液，并研究其吸收性能、解吸性能及动力学特性。结果表明，AEP/正丙醇水溶液的吸收-解吸性能较好，吸收负荷为1.09~1.35 mol·mol^-1，解吸负荷为0.93 mol·mol^-1，远高于MEA水溶液；AEP/正丙醇水溶液的富相体积分数为56.5%~58.6%，富相产物质量分数为97.1%-99.0%，解吸时只需对富相进行加热，可有效降低再生能耗；且AEP/正丙醇水溶液与CO₂的反应为快速拟一级反应，有利于工业应用。

关键词(KeyWords)： 二氧化碳捕集;相变吸收剂;吸收性能;解吸性能;动力学

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金（21978262，21476203）。

作者(Author): 沈丽,刘凡,沈遥,张宇驰,李素静,李伟

DOI: 10.3969/j.issn.1003-9015.2021.06.015

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