Research advances and challenges of liquid-liquid phase-change absorbents for CO<sub>2</sub> capture

LIU Zhexu; ZHOU Xiuhong; LI Shangyu; QI Tieyue; LI Qiangwei; AN Shanlong

doi:10.12434/j.issn.2097-2547.20260037

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Research advances and challenges of liquid-liquid phase-change absorbents for CO₂ capture

更新时间：2026-07-21

- Research advances and challenges of liquid-liquid phase-change absorbents for CO₂ capture
- Pages: 1-12(2026)
- 作者机构：
  
  1.华北电力大学（保定）环境科学与工程系河北省燃煤电站烟气多污染物协同控制重点实验室，河北保定 071003
  2.国能龙源环保有限公司，北京 100039
- 作者简介：
- 基金信息：
- DOI：10.12434/j.issn.2097-2547.20260037
  CLC： TQ413;X701
- Received：21 January 2026，
  
  Revised：2026-03-15，
  
  Online First：20 July 2026，
- 稿件说明：
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刘哲旭,周秀红,李尚彧等.液-液相变吸收剂捕集CO₂的研究进展与挑战[J].低碳化学与化工,DOI:10.12434/j.issn.2097-2547.20260037.

LIU Zhexu,ZHOU Xiuhong,LI Shangyu,et al.Research advances and challenges of liquid-liquid phase-change absorbents for CO₂ capture[J].Low-Carbon Chemistry and Chemical Engineering,DOI:10.12434/j.issn.2097-2547.20260037.
刘哲旭,周秀红,李尚彧等.液-液相变吸收剂捕集CO₂的研究进展与挑战[J].低碳化学与化工,DOI:10.12434/j.issn.2097-2547.20260037. DOI：

LIU Zhexu,ZHOU Xiuhong,LI Shangyu,et al.Research advances and challenges of liquid-liquid phase-change absorbents for CO₂ capture[J].Low-Carbon Chemistry and Chemical Engineering,DOI:10.12434/j.issn.2097-2547.20260037. DOI：

摘要

“双碳”目标背景下，开发液-液相变吸收剂对发展低能耗、高运行稳定性的CO

捕集技术具有重要意义。围绕液-液相变吸收剂的作用机理，概述了其吸收CO

过程的分相行为，指出体系组成和分子间相互作用与相变行为密切相关。在此基础上，从降低解吸能耗和调控富相黏度两个关键指标出发，总结了液-液相变吸收剂的研究进展，主要分析了其在工业应用中面临的分相稳定性不足、氧化与热降解和设备腐蚀等关键挑战。针对液-液相变吸收剂面临的挑战，分析了分子结构设计、溶剂体系优化和功能性添加剂调控等可行优化策略。最后，对液-液相变吸收剂的未来发展进行了展望。

Abstract

Under the background of “carbon peaking and carbon neutrality” goals

the development of liquid-liquid phase-change absorbents is of great significance for the development of CO

capture technologies with low energy consumption and high operational stability. Focusing on the mechanisms of liquid-liquid phase-change absorbents

the phase separation behaviors during the CO

absorption process were summarized. It was pointed out that the compositions of the system and the intermolecular interactions were closely related to the phase change behaviors. On this basis

recent research advances of liquid-liquid phase-change absorbents were reviewed from two key aspects

namely the reduction of regeneration energy consumption and the regulation of rich-phase viscosity. Furthermore

the major challenges hindering their industrial application

including insufficient phase separation stability

oxidative and thermal degradation and equipment corrosion

were systematically analyzed. To address these challenges

feasible optimization strategies

such as molecular structure design

solvent system optimization and functional additive regulation

were discussed. Finally

future development directions of liquid-liquid phase-change absorbents were prospected.

关键词

Keywords

references

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Research advances and challenges of liquid-liquid phase-change absorbents for CO2 capture

DOI：10.12434/j.issn.2097-2547.20260037

摘要

Abstract

关键词

Keywords

references

Research advances and challenges of liquid-liquid phase-change absorbents for CO₂ capture