Robust model-based control of a packed absorption column for the natural gas sweetening process

IF 1.6 4区 工程技术 Q3 Chemical Engineering
Jorge A. Romero-Bustamante, Brenda M. Zurita-Herrera, M. A. Gutiérrez-Limón, E. Hernandez‐Martinez
{"title":"Robust model-based control of a packed absorption column for the natural gas sweetening process","authors":"Jorge A. Romero-Bustamante, Brenda M. Zurita-Herrera, M. A. Gutiérrez-Limón, E. Hernandez‐Martinez","doi":"10.1515/ijcre-2022-0112","DOIUrl":null,"url":null,"abstract":"Abstract The sweetening units are the most important in natural gas processing. Packed bed absorption columns are widely used in the sweetening process; however, their operation and control are not simple due to their highly non-linear behavior derived from their distributed nature and interaction between multiple physical phenomena. In this work, two robust model-based control schemes are implemented to regulate the CO2 concentration at the outlet of a packed bed absorption column in the gas sweetening process. The model of an industrial-scale absorption column and the structure of the controllers, i) control based on modeling error compensation (MEC) ideas, and ii) nonlinear model predictive control (NMPC) are described. Numerical results show that the proposed robust model-based controllers can regulate the controlled variable to the desired reference despite external disturbances, set-point changes, and uncertainties in the absorption column model.","PeriodicalId":51069,"journal":{"name":"International Journal of Chemical Reactor Engineering","volume":"21 1","pages":"461 - 471"},"PeriodicalIF":1.6000,"publicationDate":"2022-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Chemical Reactor Engineering","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1515/ijcre-2022-0112","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Chemical Engineering","Score":null,"Total":0}
引用次数: 0

Abstract

Abstract The sweetening units are the most important in natural gas processing. Packed bed absorption columns are widely used in the sweetening process; however, their operation and control are not simple due to their highly non-linear behavior derived from their distributed nature and interaction between multiple physical phenomena. In this work, two robust model-based control schemes are implemented to regulate the CO2 concentration at the outlet of a packed bed absorption column in the gas sweetening process. The model of an industrial-scale absorption column and the structure of the controllers, i) control based on modeling error compensation (MEC) ideas, and ii) nonlinear model predictive control (NMPC) are described. Numerical results show that the proposed robust model-based controllers can regulate the controlled variable to the desired reference despite external disturbances, set-point changes, and uncertainties in the absorption column model.
天然气脱硫过程中填料吸收塔的鲁棒模型控制
摘要脱硫装置是天然气处理中最重要的装置。填料床吸收塔广泛应用于脱硫过程中;然而,它们的操作和控制并不简单,因为它们的高度非线性行为源于它们的分布性质和多种物理现象之间的相互作用。在这项工作中,实施了两种基于模型的鲁棒控制方案来调节气体脱硫过程中填充床吸收塔出口处的CO2浓度。描述了工业规模吸收塔的模型和控制器的结构,i)基于建模误差补偿(MEC)思想的控制,以及ii)非线性模型预测控制(NMPC)。数值结果表明,所提出的基于模型的鲁棒控制器可以将受控变量调节到所需的参考值,而不受吸收柱模型中的外部扰动、设定点变化和不确定性的影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
CiteScore
2.80
自引率
12.50%
发文量
107
审稿时长
3 months
期刊介绍: The International Journal of Chemical Reactor Engineering covers the broad fields of theoretical and applied reactor engineering. The IJCRE covers topics drawn from the substantial areas of overlap between catalysis, reaction and reactor engineering. The journal is presently edited by Hugo de Lasa and Charles Xu, counting with an impressive list of Editorial Board leading specialists in chemical reactor engineering. Authors include notable international professors and R&D industry leaders.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信