1.华北电力大学动力工程系,河北 保定 071003
2.南方电网电力科技股份有限公司,广东 广州 510080
冯永泓(2001—),男,硕士研究生,主要从事碳捕集系统的优化及经济性分析等方面的研究,904767346@qq.com;
李德波(1983—),男,教授级高级工程师,主要从事煤粉燃烧理论、数值模拟和现场试验,超超临界锅炉调试、试验和技术监督,煤粉燃烧高级数值模拟,大规模并行计算方法和程序开发等方面的研究,ldbyx@126.com;
方立军 (1971—),男,副教授,主要从事洁净媒技术和大气污染物控制等方面的研究,Fanglijun2009@163.cn。
薛天华(1999—),女,助理工程师,主要从事火电机组灵活性调节、金属燃料点火燃烧特性等方面的研究,xue.tian.hua@163.com;
陈拓(1987—),男,工程师,主要从事火电锅炉机组节能诊断和运行优化等方面的研究,530469112@qq.com;
周杰联(1985—),男,高级工程师,主要从事新一代煤电升级技术、火电厂性能提升技术等方面的研究,381646255@qq.com;
金凤雏(1998—),女,工程师,主要从事燃烧数值模拟及低碳电力等方面的研究,919486154@qq.com;
朱宇(1990—),男,工程师,主要从事火电机组节能诊断和运行优化等方面的研究,zhuyuncepu@163.com。
收稿:2025-08-12,
录用:2026-03-31,
纸质出版:2026-08-15
移动端阅览
冯永泓,李德波,方立军,等.基于富液循环工艺的碳捕集系统研究[J].电力科技与环保,2026,42(4):679-686.
FENG Yonghong, LI Debo, FANG Lijun, et al. Research on optimization of carbon capture system based on rich solvent recycle process[J]. Electric Power Technology and Environmental Protection, 2026, 42(4):679-686.
冯永泓,李德波,方立军,等.基于富液循环工艺的碳捕集系统研究[J].电力科技与环保,2026,42(4):679-686. DOI: 10.19944/j.eptep.1674-8069.2026.04.016.
FENG Yonghong, LI Debo, FANG Lijun, et al. Research on optimization of carbon capture system based on rich solvent recycle process[J]. Electric Power Technology and Environmental Protection, 2026, 42(4):679-686. DOI: 10.19944/j.eptep.1674-8069.2026.04.016.
目的
2
燃煤电厂碳捕集系统存在能耗高、经济性差的问题,本文旨在研究富液循环工艺对系统吸收率和再生能耗的影响,探索优化碳捕集系统运行的经济性与技术可行性。
方法
2
采用Aspen Plus软件建立基于乙醇胺(Monoethanolamine)溶液的碳捕集系统模型,模拟分析不同循环富液回流位置(吸收塔第15至19块塔板)及不同循环流量(100~190 kg/h,10 kg/h为间隔)对系统吸收率和再生能耗的影响,并与原系统进行对比。
结果
2
研究发现,循环富液回流位置越靠近吸收塔底部,系统的吸收率越高,再生能耗越低;在靠近塔底的位置(如第18、19块板)采用富液循环工艺,吸收率较原系统最高提升0.049 5%,再生能耗最多降低0.002 69 MJ/kg;循环流量增大在一定条件下有助于进一步优化系统性能。
结论
2
在靠近吸收塔底部的位置采用富液循环工艺,并适当提高循环流量,可有效提升碳捕集系统的吸收效率并降低再生能耗,具有较好的工程应用潜力。
Objective
2
To address the high energy consumption and poor economic performance of carbon capture systems in coal-fired power plants
this study aims to investigate the effects of the rich solvent recycle process on the absorption rate and regeneration energy consumption of the system
and to explore the technical and economic feasibility of process optimization.
Methods
2
A carbon capture system model based on MEA solution was established using Aspen Plus software. The effects of different return positions of the rich solvent (stages 15 to 19 of the absorber) and various recycle flow rates (100-190 kg/h) on the absorption rate and regeneration energy consumption were simulated and analyzed
and the results were compared with the original system.
Results
2
The results show that the closer the return position of the rich solvent is to the bottom of the absorber
the higher the absorption rate and the lower the regeneration energy consumption. When the rich solvent is returned near the bottom (e.g.
stages 18 and 19)
the absorption rate increases by up to 0.049 5% and the regeneration energy decreases by up to 0.002 69 MJ/kg compared to the original system. Increasing the recycle flow rate under suitable conditions further enhances system performance.
Conclusion
2
Implementing the rich solvent recycle process near the bottom of the absorber and appropriately increasing the circulation flow rate can effectively improve the absorption efficiency and reduce regeneration energy consumption
demonstrating promising potential for engineering applications.
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