摘要
有机胺法是最有效的燃煤烟气二氧化碳(CO_(2))捕集技术之一。使用Aspen plus模拟乙醇胺(MEA)捕获烟气CO_(2)的过程,先进行单独的吸收塔与再生塔模拟,在单独系统模型收敛的基础上,再进行吸收-解吸的综合模拟。在入塔烟气流量为8.22 m^(3)/min、CO_(2)物质的量分数为0.18、MEA流量为2311.3 kg/h、MEA物质的量分数为0.12条件下,MEA捕集燃煤烟气中CO_(2)的模拟结果:CO_(2)脱除率为69.3%,净化气中CO_(2)物质的量分数为5.33×10^(-2),再生塔顶再生气中CO_(2)物质的量分数为0.956,基本达到了设计要求。此为更深入地开展胺法吸收CO_(2)的研究提供了依据。
The organic amine method is one of the most effective CO_(2) capturing techniques for coal-fired flue gas.Aspen plus was used to simulate the process of flue gas CO_(2) capture by ethanolamine(MEA).Firstly,separate absorption tower and regeneration tower were simulated,and then the comprehensive absorption-desorption simulation was carried out based on the convergence of the separate system model.The flue gas flow rate was 8.22 m^(3)/min and the molar fraction of CO_(2) was 0.18,the flow rate of MEA was 2311.3 kg/h and the molar fraction of MEA was 0.12.The simulation results of CO_(2) capture by MEA were as follows:the CO_(2) removal rate was 69.3%,the CO_(2) mole fraction in the purifing gas was 5.33×10^(-2),the CO_(2) mole fraction of regeneration tower top was 0.956,which basically met the design requirements,providing a basis for further research on CO_(2) absorption by amine method.
作者
张亚萍
ZHANG Yaping(Shanxi Railway Vocational and Technical College,Taiyuan 030000,China)
出处
《无机盐工业》
CAS
CSCD
北大核心
2022年第8期96-100,共5页
Inorganic Chemicals Industry
基金
山西省第二批现代学徒制试点-煤化工技术专业建设项目
山西省骨干专业-应用化工技术专业建设项目。
