DMC-PID cascade control for MEA-based post- combustion CO2 capture process

doi:10.1016/j.cherd.2022.04.030

	DMC-PID cascade control for MEA-based post- combustion CO2 capture process
	Zhang, Wenzhao 3; Ma, Chenbin 3; Li, Haifeng 3; Xuan, Liangyu 3; An, Aimin 1,2,3
刊名	CHEMICAL ENGINEERING RESEARCH & DESIGN
	2022-06-01
卷号	182 页码:701-713
关键词	PCC system Aspen plus dynamics Optimal control DMC-PID
ISSN号	0263-8762
DOI	10.1016/j.cherd.2022.04.030
英文摘要	The capture and recovery of carbon dioxide (CO2), the main source of greenhouse gases, are the principal means to reduce CO2 emissions. The optimization and control of the CO2 capture process plays a vital role in reducing energy costs, with the post-combustion CO2 capture (PCC) device using amine-based solvents considered to be the most feasible strategy to reduce CO2 emissions from coal-fired thermal power plants. In this paper, a DMC-PID cascade strategy is proposed to manipulate the PCC process order to obtain better performance. PID algorithm is used to adjust the flue gas flow to stabilize the flue gas entering absorber, and DMC algorithm is adopted to manipulate and constrain the lean solvent flow optimally order to increase CO2 capture rate. First, the corresponding steady-state model is established in Aspen Plus to get the best operating point parameters. Next, a dynamic model is built in Aspen Plus Dynamics to analyze the dynamic changes between the main variables of the system through dynamic testing, and the transfer function of the system is obtained through experimental data. Finally, three control strategies of DMC-PID, PID-PID and DMC are used to compare the control effect of CO2 capture rate. The results show that the proposed DMC-PID cascade control strategy has better performance, which improves the stability and flexibility of the PCC system, and provides a more feasible and effective operation for the CO2 capture.(C) 2022 Institution of Chemical Engineers. Published by Elsevier Ltd. All rights reserved.
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000804476100002
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/158662]
专题	电气工程与信息工程学院
作者单位	1.Key Lab Gansu Adv Control Ind Proc, Lanzhou 730050, Peoples R China; 2.Lanzhou Univ Technol, Natl Demonstrat Ctr Expt Elect & Control Engn Educ, Lanzhou 730050, Peoples R China 3.Lanzhou Univ Technol, Coll Elect & Informat Engn, Lanzhou 730050, Peoples R China;
推荐引用方式 GB/T 7714	Zhang, Wenzhao,Ma, Chenbin,Li, Haifeng,et al. DMC-PID cascade control for MEA-based post- combustion CO2 capture process[J]. CHEMICAL ENGINEERING RESEARCH & DESIGN,2022,182:701-713.
APA	Zhang, Wenzhao,Ma, Chenbin,Li, Haifeng,Xuan, Liangyu,&An, Aimin.(2022).DMC-PID cascade control for MEA-based post- combustion CO2 capture process.CHEMICAL ENGINEERING RESEARCH & DESIGN,182,701-713.
MLA	Zhang, Wenzhao,et al."DMC-PID cascade control for MEA-based post- combustion CO2 capture process".CHEMICAL ENGINEERING RESEARCH & DESIGN 182(2022):701-713.