Modeling the Effectiveness of Hollow Fiber Membrane Contactors for CO2 Capture Using Ionic Liquids: A Comparative Study

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Abstract

The ability of technology and active solvents to absorb carbon dioxide from natural gas and after-combustion gases and to regenerate used solvents is a key representative of the search for efficient methods and environmentally friendly solvents. This study aims to construct a 2D model to evaluate the effectiveness of a hollow fiber membrane contactor (HFMC), in capturing CO2 using three distinct types of ionic liquids (ILs): 1-butyl-3-methylimidazoliumtriflate (bmim [Triflate]), 1-Ethyl-3-methylimidazolium ethyl sulfate (emim[EtSO4]), and 1-Ethyl-3-methylimidazolium dicyanamide (emim[C2N2]). The present model considers the storage tank for the solvent and considers its availability over time. By comparing the model predictions with experimental data, the results were in good agreement, with a slight discrepancy in the starting time ©for2023 CO2FIMTEC uptake due & MPRL. to a time All lag. rights Among reserved. the ILs evaluated, emim [C2N2] performs the best. Through sensitivity analysis, results reveal that increasing the feed flow rate and CO2 partial pressure enhances both the CO2 removal rate and prolongs solvent life.

Original languageEnglish
Article number2005926
JournalJournal of Membrane Science and Research
Volume9
Issue number4
DOIs
Publication statusPublished - Oct 2023

Keywords

  • CFD Simulation
  • CO capture
  • Hollow fiber membrane
  • Ionic liquids
  • Mass transfer
  • transient modeling

ASJC Scopus subject areas

  • Materials Science (miscellaneous)
  • Surfaces, Coatings and Films
  • Filtration and Separation

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