液-液相变吸收剂捕集二氧化碳研究进展  

Research progress in carbon dioxide capture using liquid-liquid phase change absorbents

作　　者：张履胜 王治红[1] 柳青 李雪雯 谭仁敏 ZHANG Lyusheng;WANG Zhihong;LIU Qing;LI Xuewen;TAN Renmin(College of Chemistry and Chemical Engineering,Southwest Petroleum University,Chengdu 610500,Sichuan,China;Sinopec Guangyuan Natural Gas Purification Company,Guangyuan 638400,Sichuan,China)

机构地区：[1]西南石油大学化学化工学院,四川成都610500 [2]中石化广元天然气净化公司,四川广元638400

出　　处：《化工学报》2025年第3期933-950,共18页CIESC Journal

摘　　要：随着能源消费的不断增加,CO_(2)排放量逐年递增,引发了全球性的气候问题。有机胺是常用的CO_(2)吸收剂,但过高的再生能耗导致CO_(2)捕集成本居高不下。基于有机胺开发的液-液相变吸收剂可以显著降低能耗。液-液相变吸收剂在正常条件下呈均相,但极性、亲水性或氢键强度发生变化时会触发相变,只需将富集CO_(2)的一相进行再生,从而降低再生能耗。基于分相特性、相变机理、吸收负载和再生能耗等关键信息,综述了最近几年液-液相变吸收剂的研究进展。最后结合CO_(2)捕集需求,指出了其他待完善的研究内容,展望了未来的研究方向。With the extensive use of fossil fuels,the emission of carbon dioxide(CO_(2))has increased year by year,causing global climate problems.To address this global issue,carbon capture,utilization,and storage(CCUS)is considered an important means to slow down CO_(2)emissions.Currently,organic amines are commonly used as CO_(2)absorbents,but their high regeneration energy consumption leads to high capture costs,which hinders the commercial deployment of CCUS.As a low-energy consumption absorbent,the liquid-liquid phase change absorbent,formulated with organic amines,functions as a solution capable of compensating for this deficiency.Liquid-liquid phase change absorbents are homogeneous under normal conditions,but phase change can be triggered when the polarity,hydrophilicity,or hydrogen bond strength changes,resulting in the formation of a CO_(2)-lean phase and a CO_(2)-rich phase.Only one phase enriched in CO_(2)is sent to regeneration,thus reducing regeneration energy consumption.This review summarizes the research progress of liquid-liquid phase change absorbents in recent years,and compares key aspects such as phase change characteristics,phase change mechanism,absorption loading,and regeneration energy consumption.Finally,combined with the demand for CO_(2)capture,other research contents that need to be improved are pointed out and future research directions are prospected.

关 键 词：二氧化碳捕集 有机胺 能耗 相变 吸收 

分 类 号：TQ028.1[化学工程]