A modeling error compensation control approach for CO<sub>2</sub> and H<sub>2</sub>S absorption in a hollow-fiber membrane contactor

Jorge A. Romero-Bustamante; Miguel Ángel Gutiérrez-Limón; Eliseo Hernandez-Martinez

doi:10.1016/j.cjche.2025.06.021

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A modeling error compensation control approach for CO₂ and H₂S absorption in a hollow-fiber membrane contactor

Updated：2026-02-12

- A modeling error compensation control approach for CO₂ and H₂S absorption in a hollow-fiber membrane contactor
- A modeling error compensation control approach for CO₂ and H₂S absorption in a hollow-fiber membrane contactor
- 中国化学工程学报（英文版） 2025年88卷第12期
- Affiliations：
  
  1. Universidad Veracruzana, Facultad de Ciencias Químicas, Circuito Universitario Gonzalo Aguirre Beltrán 91000, Xalapa,Veracruz,Mexico
  2. Universidad Autónoma Metropolitana-Azcapotzalco, Departamento de Energía, Av San Pablo Xalpa 180, San Martin Xochinahuac, Azcapotzalco, 02200, Ciudad de México, CDMX, México
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2025.06.021
  中图分类号：
- 纸质出版：2025
- Accepted：
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Jorge A. Romero-Bustamante, Miguel Ángel Gutiérrez-Limón, Eliseo Hernandez-Martinez. A modeling error compensation control approach for CO₂ and H₂S absorption in a hollow-fiber membrane contactor[J]. 中国化学工程学报（英文版）, 2025,88(12). DOI: 10.1016/j.cjche.2025.06.021.

and H
Jorge A. Romero-Bustamante, Miguel Ángel Gutiérrez-Limón, Eliseo Hernandez-Martinez. A modeling error compensation control approach for CO₂ and H₂S absorption in a hollow-fiber membrane contactor[J]. 中国化学工程学报（英文版）, 2025,88(12). DOI: 10.1016/j.cjche.2025.06.021. DOI：

and H DOI： 10.1016/j.cjche.2025.06.021.

摘要

Abstract

Hollow fiber membrane contactor (HFMC) units are one of the most promising technologies for improving conventional absorption processes. Traditionally

the optimization and control of this process is based on simplified mathematical models or linearized control proposals that may present limitations. This work introduces a robust control based on modeling error compensation (MEC) applied to CO

and H

S absorption in a HFMC for natural gas sweetening. The HFMC model considers the concentration distribution in radial and axial coordinates. A classical PI controller and a sliding model controller (SMC) are applied for comparison purposes. Simulation results show that the proposed control MEC is suitable for regulating the sour gas concentration to values that reduce their presence at the HFMC from 0.85% to 0.45% (mol) of CO

and from 4 to 1.2 μl·L

-1

of H

independent of external disturbances and setpoint changes. Likewise

MEC’s ability to compensate for modeling uncertainties through a simple and easily implemented design provides robust performance that satisfies international standards in natural gas quality

showing a 40% better performance according to the integral of squared error compared with the SMC controller.

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A modeling error compensation control approach for CO2 and H2S absorption in a hollow-fiber membrane contactor

A modeling error compensation control approach for CO2 and H2S absorption in a hollow-fiber membrane contactor

DOI：10.1016/j.cjche.2025.06.021

摘要

Abstract

关键词

Keywords

references

A modeling error compensation control approach for CO₂ and H₂S absorption in a hollow-fiber membrane contactor

A modeling error compensation control approach for CO₂ and H₂S absorption in a hollow-fiber membrane contactor