发电技术2025，Vol.46Issue(2)：304-313,10.DOI:10.12096/j.2096-4528.pgt.23157
天然气电厂新型多元胺基CO2吸收剂试验与应用研究
Experimental and Application Research of Novel Polyamine-Based CO2 Absorbents in Gas-Fired Power Plants
摘要
Abstract
[Objectives]Currently,chemical absorption CO2 capture technology used in post-combustion is rarely applied in large-scale decarbonization projects in gas-fired power plants due to its high operational energy consumption and total costs.In order to reduce the energy consumption,particularly the regeneration energy consumption,it is necessary to carry out experimental research to improve the performance of chemical absorbents.[Methods]Two novel polyamine-based absorbents are developed through composition design,laboratory testing with small-scale experimental setups,and engineering validation.[Results]Compared to monoethanolamine(MEA),the two polyamine absorbents—19%diethylaminoethanol+9%piperazine+2%MEA(DT01-5)and 20%1,4-butanediamine+5%methyldie-thanolamine+5%2-amino-2-methyl-1-propanol(DT02-3)—significantly improve absorption loading,absorption rate,desorption rate,and cyclic capacity.Their physicochemical properties are close to those of the 30%MEA commonly used in industrial plants.Through testing on a 2 m3/h small-scale experimental setup,the energy consumption of the two absorbents is reduced by 15.84%and 9.32%,respectively,compared to that of MEA.The 3 000 m3/h industrial test results show that the regeneration heat consumption of the two absorbents decreases by 32.89%and 39.52%,respectively,compared to MEA,while the capture power consumption decreases by 9.83%and 16.14%,respectively.Additionally,other performance indicators improve to varying degrees,resulting in total operating cost reductions of 25.95%and 34.14%,respectively.[Conclusions]The two novel polyamine absorbents demonstrate strong potential for commercial applications.关键词
燃气电厂/碳捕集、利用与封存(CCUS)/热耗/电耗/吸收剂/多元胺/化学吸收Key words
gas-fired power plants/carbon capture,utilization and storage(CCUS)/heat consumption/power consumption/absorbents/polyamines/chemical absorption分类
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黄忠源,金绪良,孟凡钦,殷爱鸣,张丽,陈绍云..天然气电厂新型多元胺基CO2吸收剂试验与应用研究[J].发电技术,2025,46(2):304-313,10.基金项目
新疆维吾尔自治区重点研发计划项目(2022A01002-1).Project Supported by Key Research and Development Program in Xinjiang Uygur Autonomous Region(2022A01002-1). （2022A01002-1）
