Thermodynamic Performance Analysis of Membrane Absorption CO<sub>2</sub> Capture System for Coal-fired Power Plants

MENG Xianglong; HUANG Jiguang; ZHANG Heng; CHEN Haiping; GAO Dan; LI Zhaohao

doi:10.19805/j.cnki.jcspe.2026.250104

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Thermodynamic Performance Analysis of Membrane Absorption CO₂ Capture System for Coal-fired Power Plants

更新时间：2026-06-11

- Thermodynamic Performance Analysis of Membrane Absorption CO₂ Capture System for Coal-fired Power Plants
- Chinese Journal of Power Engineering Vol. 46, Issue 6, Pages: 180-187(2026)
- 作者机构：
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- DOI：10.19805/j.cnki.jcspe.2026.250104
  CLC： X701.7
- Published：2026
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孟祥龙, 黄吉光, 张衡, 陈海平, 高丹, 李兆豪. 燃煤电厂膜吸收法CO2捕集系统热力性能分析[J]. 动力工程学报, 2026, 46(6): 180-187.
孟祥龙, 黄吉光, 张衡, 陈海平, 高丹, 李兆豪. 燃煤电厂膜吸收法CO2捕集系统热力性能分析[J]. 动力工程学报, 2026, 46(6): 180-187. DOI： 10.19805/j.cnki.jcspe.2026.250104.

DOI： 10.19805/j.cnki.jcspe.2026.250104

摘要

为实现CO2捕集系统节能降耗

使用膜吸收法CO2捕集技术处理燃煤电厂脱硫后烟气

实现在捕集CO2的同时回收烟气余热和减少吸收剂损失。以多孔膜传热传质模型为基础

构建了膜吸收法CO2捕集耦合燃煤电厂热力系统的仿真模型

分析了膜吸收法CO2捕集性能及主要影响因素

并评价其节能和节水潜力。结果表明:与常规塔式CO2捕集系统相比

膜吸收法CO2捕集系统通过回收烟气余热

再生能耗从3.69 MJ/kg降至3.66 MJ/kg;通过将CO2捕集与烟气流动分隔

减少了吸收剂损失

实现节水130 800~143 290 kg/h

节约CO2吸收剂单乙醇胺(MEA)溶液质量流量702~901 kg/h。

Abstract

To achieve energy conservation and consumption reduction in CO2 capture systems

membrane absorption technology was employed to treat desulfurized flue gas in coal-fired power plant

enabling the simultaneous capture of CO2

recovery of flue gas waste heat

and reduction of absorbent losses. Based on the multi-porous membrane heat and mass transfer model

a simulation model coupling the membrane absorption CO2 capture system with the thermal system of the coal-fired power plant was developed. The CO2 capture performance and its main influencing factors were analyzed

and the potentials for energy and water savings were evaluated. The results indicate that

compared with a conventional column CO2 capture system

the membrane absorption system reduces the regeneration energy consumption from 3.69 MJ/kg to 3.66 MJ/kg through waste heat recovery. Furthermore

by decoupling the CO2 capture process from the flue gas flow

absorbent losses are minimized

achieving water savings of 130 800~143 290 kg/h and reducing the mass flow rate of the CO2 absorbent monoethanolamine (MEA) solution by 702~901 kg/h.

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references

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Thermodynamic Performance Analysis of Membrane Absorption CO2 Capture System for Coal-fired Power Plants

DOI：10.19805/j.cnki.jcspe.2026.250104

摘要

Abstract

关键词

Keywords

references

Thermodynamic Performance Analysis of Membrane Absorption CO₂ Capture System for Coal-fired Power Plants